fix: Fail when no config file is read, and report the search

When Config::setup found no config file, it left the config file pointing at the last name it tried in the last directory. The read failed there, so the operator was told only that /etc/xrpld/rippled.cfg was missing. setup then tried to create /var/lib/xrpld, and that throw reached an uncaught main and aborted the process. A config file named with --conf and unreadable produced only a warning, and setup carried on with no settings at all. The config file is now a local std::optional that setup passes to load, rather than a configFile_ member. A file that is there but cannot be read throws, as one with invalid contents already did, so load needs no return value. When the search found nothing, setup writes every directory it tried to stderr, skips the data directory, and returns false. It is [[nodiscard]] bool. So a false return means one thing only. The search found no config file at all, which is fatal only without a positional argument, the same condition that chooses between starting a server and running an RPC command. That rule is missingConfigIsFatal in the new Main.h. setup still sets up the defaults and the SSL context in that case, so the RPC client runs; rpc_call::fromCommandLine takes its destination from --rpc_ip. An unreadable config file used to be fatal only when --conf named it. A file the search found and could not read left RPC mode running on defaults, so the same file gave exit 1 under --conf and exit 73 when found by the search. Throwing removes that difference. --vacuum is excluded from that condition. It returns before the RPC branch and reads the config itself, so a positional argument beside it used to skip the check. On a host with no config file, xrpld --vacuum server_info ran vacuum unconfigured and died with "exception database_path must be set. in function run" and exit 255. It now reports the search and exits 1, as --vacuum alone already did. run() wraps its setup call to catch what setup throws, print "xrpld: invalid configuration: <reason>", and exit 1. Also fixes the read-failure message, which wrapped the path in single quotes on top of the double quotes that streaming a std::filesystem::path adds, and ran the error number onto a period. Every message here is built with std::format. The data directory throw names the reason from its error_code, which was captured and then discarded. Config_test asserts the result of every setup call, covers a config file that cannot be read, and covers the case where no directory holds one. The second captures stderr and asserts all three searched directories are named. The first asserts the message thrown and that no data directory is left beside the file. The guard that skips the data directory when nothing was read is not reachable from a suite. Its one remaining path is a search that found nothing, where the data directory is the last candidate's, /var/lib under the system name, which a test cannot redirect. A built binary covers it. On a host with no config file the run reports the searched directories and exits 1, creating no data directory. missingConfigIsFatal is a header-only predicate so that xrpld_tests can reach it without linking server code, and its four combinations are covered there. run() itself is not reachable from a suite, so it is verified against a built binary. An unreadable config file exits 1 whether --conf named it or the search found it, and with or without a positional argument. With no config file anywhere and a positional argument, the run still reaches the RPC client.
refactor: Search config directories over a candidate list
2026-10-22 03:27:08 +00:00 · 2026-10-03 09:32:29 -04:00 · 2026-10-02 21:19:48 +00:00
453 changed files with 6831 additions and 12751 deletions
@@ -5,10 +5,7 @@ Checks: "-*,
  -bugprone-exception-escape,
  -bugprone-implicit-widening-of-multiplication-result,
  -bugprone-narrowing-conversions,
-  -bugprone-signed-bitwise,
-  -bugprone-std-exception-baseclass,
  -bugprone-throwing-static-initialization,
-  -bugprone-unhandled-code-paths,

  cppcoreguidelines-*,
  -cppcoreguidelines-avoid-c-arrays,
@@ -17,7 +14,6 @@ Checks: "-*,
  -cppcoreguidelines-avoid-magic-numbers,
  -cppcoreguidelines-avoid-non-const-global-variables,
  -cppcoreguidelines-c-copy-assignment-signature,
-  -cppcoreguidelines-explicit-constructor,
  -cppcoreguidelines-interfaces-global-init,
  -cppcoreguidelines-macro-usage,
  -cppcoreguidelines-missing-std-forward,
@@ -36,7 +32,6 @@ Checks: "-*,
  llvm-namespace-comment,

  misc-*,
-  -misc-explicit-constructor,
  -misc-multiple-inheritance,
  -misc-no-recursion,
  -misc-non-private-member-variables-in-classes,
@@ -50,8 +45,6 @@ Checks: "-*,
  -modernize-avoid-c-style-cast,
  -modernize-return-braced-init-list,
  -modernize-use-integer-sign-comparison,
-  -modernize-use-string-view,
-  -modernize-use-structured-binding,
  -modernize-use-trailing-return-type,

  performance-*,
@@ -60,7 +53,6 @@ Checks: "-*,
  -performance-noexcept-move-constructor,
  -performance-unnecessary-copy-initialization,
  -performance-unnecessary-value-param,
-  -performance-use-std-move,

  readability-*,
  -readability-avoid-const-params-in-decls,
@@ -73,11 +65,7 @@ Checks: "-*,
  -readability-named-parameter,
  -readability-qualified-auto,
  -readability-redundant-access-specifiers,
-  -readability-redundant-nested-if,
-  -readability-redundant-qualified-alias,
  -readability-static-accessed-through-instance,
-  -readability-trailing-comma,
-  -readability-trivial-switch,
  -readability-uppercase-literal-suffix
  "
 # ---
@@ -93,10 +81,6 @@ CheckOptions:
  bugprone-unsafe-functions.ReportMoreUnsafeFunctions: true
  bugprone-unused-return-value.CheckedReturnTypes: ::std::error_code;::std::error_condition;::std::errc

-  # New in clang-tidy 23; disabled until the code is updated
-  misc-const-correctness.AnalyzeAutoVariables: false
-  misc-const-correctness.AnalyzeLambdas: false
-  misc-const-correctness.AnalyzeParameters: false
  misc-include-cleaner.IgnoreHeaders: ".*/(detail|impl)/.*;.*fwd\\.h(pp)?;time.h;stdlib.h;sqlite3.h;netinet/in\\.h;sys/resource\\.h;sys/sysinfo\\.h;linux/sysinfo\\.h;__chrono/.*;bits/.*;_abort\\.h;boost/.*;openssl/obj_mac\\.h"

  readability-braces-around-statements.ShortStatementLines: 2
@@ -255,7 +255,6 @@ words:
  - queuable
  - Raphson
  - rcflags
-  - reencrypted
  - replayer
  - repodata
  - repomd
@@ -108,75 +108,3 @@ endfunction()

 function(patch_nix_binary target)
 endfunction()
-
-function(rpcspec_generate_instantiations)
-    set(options)
-    set(oneValueArgs OUT_VAR VALUE_TYPE VIEW_HEADER INCLUDE_DIR)
-    set(multiValueArgs HANDLERS)
-    cmake_parse_arguments(
-        THIS_FUNCTION_PREFIX
-        "${options}"
-        "${oneValueArgs}"
-        "${multiValueArgs}"
-        ${ARGN}
-    )
-endfunction()
-
-function(corrosion_import_crate)
-    set(options
-        ALL_FEATURES
-        NO_DEFAULT_FEATURES
-        NO_STD
-        NO_LINKER_OVERRIDE
-        NO_USES_TERMINAL
-        LOCKED
-        FROZEN
-    )
-    set(oneValueArgs MANIFEST_PATH PROFILE IMPORTED_CRATES)
-    set(multiValueArgs
-        CRATE_TYPES
-        CRATES
-        FEATURES
-        FLAGS
-        OVERRIDE_CRATE_TYPE
-    )
-    cmake_parse_arguments(
-        THIS_FUNCTION_PREFIX
-        "${options}"
-        "${oneValueArgs}"
-        "${multiValueArgs}"
-        ${ARGN}
-    )
-endfunction()
-
-function(corrosion_set_env_vars target_name env_var)
-endfunction()
-
-function(corrosion_add_cxxbridge cxx_target)
-    set(options)
-    set(oneValueArgs CRATE)
-    set(multiValueArgs FILES)
-    cmake_parse_arguments(
-        THIS_FUNCTION_PREFIX
-        "${options}"
-        "${oneValueArgs}"
-        "${multiValueArgs}"
-        ${ARGN}
-    )
-endfunction()
-
-function(_unlink_libgcc_s crate)
-endfunction()
-
-function(add_xrpl_crate name)
-    set(options)
-    set(oneValueArgs CRATE)
-    set(multiValueArgs FILES)
-    cmake_parse_arguments(
-        THIS_FUNCTION_PREFIX
-        "${options}"
-        "${oneValueArgs}"
-        "${multiValueArgs}"
-        ${ARGN}
-    )
-endfunction()
@@ -5,18 +5,6 @@
 # This file is sorted in reverse chronological order, with the most recent commits at the top.
 # The commits listed here are ignored by git blame, which is useful for formatting-only commits that would otherwise obscure the history of changes to a file.

-# chore: CamelCase for typedef/using in `clang-tidy` (#8177)
-97a1824537d20d82d25bf151a37a7a4532ebf085
-# chore: Rename CamelCase namespaces to snake_case (#7933)
-06488c1318d96f56d0536251bee08ac85fa7fdd3
-# style: Unify style for all Doxygen comments (#7776)
-73b6852a122854140336e6e6bc30a3a4b41aa5fd
-# style: More clang-tidy identifier renaming (#7290)
-a830ab10efed8d3e59ef2fc15d66efdf9c6bb0d8
-# refactor: Rename static constants (#7120)
-5b6e8b6f93b19c1e3f6a3467a25639031d9d9a53
-# chore: More fixes for bad renames (#7092)
-7afdd71a54d562b32a50b29a5aa00bb997dc9053
 # refactor: Enable clang-tidy `readability-identifier-naming` check (#6571)
 8995564ed6b9e453e144bb663303072a3c1ba305
 # refactor: Enable remaining clang-tidy `cppcoreguidelines` checks (#6538)
@@ -15,9 +15,9 @@ inputs:
    required: false
    default: "false"
  log_verbosity:
-    description: 'The logging verbosity ("quiet", "verbose"), or empty to use the Conan defaults.'
+    description: "The logging verbosity."
    required: false
-    default: ""
+    default: "verbose"
  sanitizers:
    description: "The sanitizers to enable."
    required: false
@@ -35,16 +35,6 @@ runs:
        LOG_VERBOSITY: ${{ inputs.log_verbosity }}
        SANITIZERS: ${{ inputs.sanitizers }}
      run: |
-        # By default, leave the verbosity unset, so CMake configure output is
-        # shown, but compile commands and Boost's b2 debug output (~85k lines
-        # when "verbose") are not.
-        VERBOSITY_ARGS=()
-        if [[ -n "${LOG_VERBOSITY}" ]]; then
-            VERBOSITY_ARGS=(
-                --conf:all tools.build:verbosity="${LOG_VERBOSITY}"
-                --conf:all tools.compilation:verbosity="${LOG_VERBOSITY}"
-            )
-        fi
        conan install \
            --profile:all ci \
            --build="${BUILD_OPTION}" \
@@ -52,13 +42,6 @@ runs:
            --options:host='&:xrpld=True' \
            --settings:all build_type="${BUILD_TYPE}" \
            --conf:all tools.build:jobs=${BUILD_NPROC} \
-            "${VERBOSITY_ARGS[@]}" \
-            --format=json \
-            . >"${RUNNER_TEMP}/conan-graph.json"
-
-    # Tools that run during the build may only load glibc from the Nix store,
-    # as their package ID survives a GCC runtime update.
-    - name: Check build-context packages for Nix store dependencies (Linux)
-      if: ${{ runner.os == 'Linux' }}
-      shell: bash
-      run: ./bin/nix/check-build-context-runtime.sh "${RUNNER_TEMP}/conan-graph.json"
+            --conf:all tools.build:verbosity="${LOG_VERBOSITY}" \
+            --conf:all tools.compilation:verbosity="${LOG_VERBOSITY}" \
+            .
@@ -194,6 +194,7 @@ tests.libxrpl > xrpl.resource
 tests.libxrpl > xrpl.server
 tests.libxrpl > xrpl.shamap
 tests.libxrpl > xrpl.tx
+tests.xrpld > xrpld.app
 tests.xrpld > xrpld.rpc
 tests.xrpld > xrpl.json
 tests.xrpld > xrpl.protocol
@@ -1,5 +1,5 @@
 {
-  "image_tag": "sha-3d526d4",
+  "image_tag": "sha-060957e",
  "configs": {
    "ubuntu": [
      {
@@ -74,7 +74,7 @@
        "extra_cmake_args": "-Dvalidator_keys=ON",
        "package": {
          "type": "deb",
-          "image": "ghcr.io/xrplf/xrpld/packaging-debian:sha-e6055dd"
+          "image": "ghcr.io/xrplf/xrpld/packaging-debian:sha-3a2d19f"
        }
      },
      {
@@ -86,7 +86,7 @@
        "extra_cmake_args": "-Dvalidator_keys=ON -Dassert=ON",
        "package": {
          "type": "deb",
-          "image": "ghcr.io/xrplf/xrpld/packaging-debian:sha-e6055dd",
+          "image": "ghcr.io/xrplf/xrpld/packaging-debian:sha-3a2d19f",
          "variant": "assert"
        }
      }
@@ -101,7 +101,7 @@
        "extra_cmake_args": "-Dvalidator_keys=ON",
        "package": {
          "type": "rpm",
-          "image": "ghcr.io/xrplf/xrpld/packaging-rhel:sha-e6055dd"
+          "image": "ghcr.io/xrplf/xrpld/packaging-rhel:sha-3a2d19f"
        }
      }
    ]
@@ -12,7 +12,8 @@ on:
      - "!nix/docker/README.md"
      - "!nix/devshell.nix"
      - "!nix/check-tools/**"
-      - "bin/nix/default-loader-path.sh"
+      - "bin/default-loader-path.sh"
+      - "bin/install-sanitizer-libs.sh"
  pull_request:
    paths:
      - ".github/workflows/build-nix-images.yml"
@@ -24,8 +25,8 @@ on:
      - "!nix/devshell.nix"
      - "!nix/check-tools/**"
      - "bin/check-tools.sh"
-      - "bin/nix/default-loader-path.sh"
-      - "bin/install/sanitizer-libs.sh"
+      - "bin/default-loader-path.sh"
+      - "bin/install-sanitizer-libs.sh"
  workflow_dispatch:

 concurrency:
@@ -5,12 +5,13 @@ on:
    branches:
      - develop
    paths:
-      - "bin/install/packaging-tools.sh"
+      - ".github/workflows/build-packaging-images.yml"
+      - "bin/install-packaging-tools.sh"
      - "package/images/packaging/**"
  pull_request:
    paths:
      - ".github/workflows/build-packaging-images.yml"
-      - "bin/install/packaging-tools.sh"
+      - "bin/install-packaging-tools.sh"
      - "package/images/packaging/**"
  workflow_dispatch:

@@ -5,6 +5,7 @@ on:
    branches:
      - develop
    paths:
+      - ".github/workflows/build-pre-commit-image.yml"
      - "bin/pre-commit/Dockerfile"
      - "rust-toolchain.toml"
  pull_request:
@@ -34,7 +34,7 @@ permissions:
 jobs:
  audit:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    permissions:
      contents: read
      # Needed to open an issue on scheduled failures.
@@ -93,8 +93,9 @@ jobs:
            .github/workflows/reusable-upload-recipe.yml
            .clang-tidy
            .codecov.yml
+            bin/check-nix-store-refs.sh
            bin/check-tools.sh
-            bin/nix/**
+            bin/default-loader-path.sh
            cfg/**
            cmake/**
            conan/**
@@ -31,8 +31,9 @@ on:
      - ".github/workflows/reusable-upload-recipe.yml"
      - ".clang-tidy"
      - ".codecov.yml"
+      - "bin/check-nix-store-refs.sh"
      - "bin/check-tools.sh"
-      - "bin/nix/**"
+      - "bin/default-loader-path.sh"
      - "cfg/**"
      - "cmake/**"
      - "conan/**"
@@ -17,4 +17,4 @@ jobs:
    uses: XRPLF/actions/.github/workflows/pre-commit.yml@279ec358f4a1be4088be3e024b07916fa97c75b6
    with:
      runs_on: ubuntu-latest
-      container: '{ "image": "ghcr.io/xrplf/xrpld/pre-commit:sha-70b8fd3" }'
+      container: '{ "image": "ghcr.io/xrplf/xrpld/pre-commit:sha-473fe44" }'
@@ -41,7 +41,7 @@ env:
 jobs:
  build:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -186,6 +186,9 @@ jobs:
        with:
          build_nproc: ${{ steps.nproc.outputs.nproc }}
          build_type: ${{ inputs.build_type }}
+          # Set the verbosity to "quiet" for Windows to avoid an excessive
+          # amount of logs. For other OSes, the "verbose" logs are more useful.
+          log_verbosity: ${{ runner.os == 'Windows' && 'quiet' || 'verbose' }}
          sanitizers: ${{ inputs.sanitizers }}

      - name: Configure CMake
@@ -254,20 +257,20 @@ jobs:
      # cache included, since what it holds is what gets uploaded and reused.
      - name: Check the build output for Nix store references (Nix toolchain)
        if: ${{ inputs.toolchain == 'nix' }}
-        run: ./bin/nix/check-nix-store-refs.sh "${BUILD_DIR}"
+        run: ./bin/check-nix-store-refs.sh "${BUILD_DIR}"

      - name: Check the Conan cache for Nix store references (Nix toolchain)
        if: ${{ inputs.toolchain == 'nix' }}
-        run: ./bin/nix/check-nix-store-refs.sh "${CONAN_HOME}"
+        run: ./bin/check-nix-store-refs.sh "${CONAN_HOME}"

      # Only what PatchNixBinary.cmake retargets: the toolchain in the Linux
      # images always references the store. Same condition it uses.
      - name: Check for Nix store references (Linux)
        if: ${{ runner.os == 'Linux' && env.SANITIZERS_ENABLED == 'false' }}
        run: |
-          ./bin/nix/check-nix-store-refs.sh "${BUILD_DIR}/xrpld"
-          ./bin/nix/check-nix-store-refs.sh "${BUILD_DIR}/xrpl_tests"
-          ./bin/nix/check-nix-store-refs.sh "${BUILD_DIR}/xrpld_tests"
+          ./bin/check-nix-store-refs.sh "${BUILD_DIR}/xrpld"
+          ./bin/check-nix-store-refs.sh "${BUILD_DIR}/xrpl_tests"
+          ./bin/check-nix-store-refs.sh "${BUILD_DIR}/xrpld_tests"

      - name: Show ccache statistics
        if: ${{ inputs.ccache_enabled }}
@@ -34,7 +34,7 @@ jobs:
    needs: [determine-files]
    if: ${{ needs.determine-files.outputs.cpp_changed_files != '' || needs.determine-files.outputs.need_full_run == 'true' }}
    runs-on: ["self-hosted", "Linux", "X64", "heavy"]
-    container: "ghcr.io/xrplf/xrpld/nix-debian:sha-3d526d4"
+    container: "ghcr.io/xrplf/xrpld/nix-debian:sha-060957e"
    permissions:
      contents: read
      issues: write
@@ -73,6 +73,7 @@ jobs:
        with:
          build_nproc: ${{ steps.nproc.outputs.nproc }}
          build_type: ${{ env.BUILD_TYPE }}
+          log_verbosity: verbose

      - name: Configure CMake
        working-directory: ${{ env.BUILD_DIR }}
@@ -28,7 +28,7 @@ permissions:
 jobs:
  clippy:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -41,7 +41,7 @@ jobs:

  coverage:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -70,7 +70,7 @@ jobs:

  doc:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -40,7 +40,7 @@ defaults:
 jobs:
  upload:
    runs-on: ubuntu-latest
-    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-3d526d4
+    container: ghcr.io/xrplf/xrpld/nix-ubuntu:sha-060957e
    env:
      REMOTE_NAME: ${{ inputs.remote_name }}
      CONAN_LOGIN_USERNAME_XRPLF: ${{ secrets.remote_username }}
@@ -108,11 +108,14 @@ jobs:
          build_nproc: ${{ steps.nproc.outputs.nproc }}
          build_type: ${{ matrix.build_type }}
          force_build: ${{ github.event_name == 'schedule' || github.event.inputs.force_source_build == 'true' }}
+          # Set the verbosity to "quiet" for Windows to avoid an excessive
+          # amount of logs. For other OSes, the "verbose" logs are more useful.
+          log_verbosity: ${{ runner.os == 'Windows' && 'quiet' || 'verbose' }}
          sanitizers: ${{ matrix.sanitizers }}

      - name: Check the Conan cache for Nix store references (Nix toolchain)
        if: ${{ matrix.toolchain == 'nix' }}
-        run: ./bin/nix/check-nix-store-refs.sh "${CONAN_HOME}"
+        run: ./bin/check-nix-store-refs.sh "${CONAN_HOME}"

      - name: Log into Conan remote
        if: ${{ github.repository == 'XRPLF/rippled' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch') }}
@@ -60,7 +60,7 @@ repos:
        types_or: [c++, c]

  - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: a9a8a861f30ed207ead7d5a3b7e8032283ba5da7 # frozen: v23.1.2
+    rev: e2b496dc2bd8340c2524cb9a2d2a943cde1bb6df # frozen: v23.1.1
    hooks:
      - id: clang-format
        args: [--style=file]
@@ -82,10 +82,9 @@ repos:
        files: ^crates/.*\.rs$

  - repo: https://github.com/BlankSpruce/gersemi-pre-commit
-    rev: 28010ddd6016e1a0f7bd232acb6536ef996ae897 # frozen: 0.29.2
+    rev: f1c4833f8cf23c6d952673abc73525411a5719e8 # frozen: 0.29.1
    hooks:
      - id: gersemi
-        args: [-i, --warnings-as-errors]

  - repo: https://github.com/rbubley/mirrors-prettier
    rev: ef4a397f916211b4a39ccf9d3d9cbb6562157251 # frozen: v3.9.9
@@ -96,19 +95,19 @@ repos:
  # Scoped to package/: the rest of the repo's Python has pre-existing findings,
  # so widening these is its own change.
  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: f12be1ebaa5351c1fc76472de98db2c3446c8253 # frozen: v0.16.10
+    rev: a56c0b927e6465d37cae3e97d35d4d18ab2b96cd # frozen: v0.16.9
    hooks:
      - id: ruff-check
        args: [--fix]
        files: ^package/.*\.py$

  - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 96ae3e5802f3fe2d551e703e18f0a367d1a81ac2 # frozen: 26.10.0
+    rev: 4160603246a6b365d4a2af661c6d71b0a0f50478 # frozen: 26.5.1
    hooks:
      - id: black

  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: 2834ec6639549dd6796205c8f011dedcd587288b # frozen: v2.4.0
+    rev: 7ff8d35ae36a7d2b968f2f90b4c723e292e594ee # frozen: v2.3.1
    hooks:
      - id: mypy
        args: [--strict]
@@ -28,17 +28,7 @@ Version 3.5.0 is not yet released.

 ### Additions in 3.5.0

- `subscribe`, `unsubscribe`: Added an optional `mpt_issuances` request field, an array of MPT issuance IDs (hex strings). Subscribers receive the same `transaction` message as the `transactions` stream for each validated transaction whose metadata affects a subscribed issuance. MPT issuance subscriptions count toward the per-connection subscription limit. An empty array, a non-array value, or an invalid ID returns `invalidParams`. ([#5671](https://github.com/XRPLF/rippled/pull/5671))
- `ledger_entry`: Add full support for checks, NFT offers, payment channels, and signer lists. ([#6319](https://github.com/XRPLF/rippled/pull/6319))
-
-### Bugfixes in 3.5.0
-
- `channel_authorize`: The `channel_id` field now returns an `invalidParams` error if the value is not a string. [#7582](https://github.com/XRPLF/rippled/pull/7582)
- `channel_verify`: The `channel_id` and `signature` fields now return an `invalidParams` error if the value is not a string. [#7582](https://github.com/XRPLF/rippled/pull/7582)
-
-### Bugfixes in 3.5.0
-
- `feature`: The admin-only `vetoed` field now returns `invalidParams` unless its value is a boolean. [#7583](https://github.com/XRPLF/rippled/pull/7583)
+- `subscribe`, `unsubscribe`: Added an optional `mpt_issuances` request field, an array of MPT issuance IDs (hex strings). Subscribers receive a message with `type` `mptTransaction` for each validated transaction whose metadata affects a subscribed issuance; the message has the same fields as the `transactions` stream. MPT issuance subscriptions count toward the per-connection subscription limit. An empty array, a non-array value, or an invalid ID returns `invalidParams`. ([#5671](https://github.com/XRPLF/rippled/pull/5671))

 ## XRP Ledger server version 3.4.0

@@ -60,7 +50,6 @@ Version 3.4.0 is not yet released. These changes are available in the 3.4.0 beta
 - `account_lines`: The `peer` field now returns an error if the value is not a string. [#7728](https://github.com/XRPLF/rippled/pull/7728)
 - `ledger`: `delivered_amount` is now included in the metadata of successful `AccountDelete` transactions when transactions are expanded (`expand`, or admin-only `full`). Previously it was only added for `Payment` and `CheckCash`, which made `ledger` inconsistent with `tx` and `account_tx`. [#5706](https://github.com/XRPLF/rippled/pull/5706)
 - `noripple_check`: The `transactions` field is no longer included in error responses; it is still returned (possibly as an empty array) whenever `transactions` is `true` and the request succeeds. A malformed `account` is now rejected before the ledger is looked up, so that error response no longer carries the `ledger_hash`, `ledger_index`, and `validated` fields ([#6303](https://github.com/XRPLF/rippled/pull/6303)).
- `transaction_entry`: An object or an array in `tx_hash` now returns `malformedRequest`, like any other value that is not a hex hash, instead of an `internal` error.

 ## XRP Ledger server version 3.3.0

@@ -10,7 +10,7 @@
 # alone; the scripts in a Conan cache are all git hook samples and autotools
 # scratch, 36 false positives to 0 real.
 #
-# Usage: bin/nix/check-nix-store-refs.sh <path>
+# Usage: bin/check-nix-store-refs.sh <path>

 set -euo pipefail

@@ -20,11 +20,9 @@
 # development setups, but not in the macOS CI environment. They are checked
 # everywhere except when running in CI on macOS.
 #
-# Tools that Nix also exposes under a version-suffixed name
-# (`clang-tidy-<v>`, `g++-<v>`, ...) are probed under both names:
-# a suffixed name can break while the plain one still works
-# (see mkVersionedToolLinks in nix/packages.nix).
-# The suffix is the major version of the plain `clang` / `gcc` on PATH.
+# Tools that Nix also exposes under a version-suffixed name (`clang-tidy-22`,
+# `g++-15`, ...) are probed under both names: a suffixed name can break while
+# the plain one still works (see mkVersionedToolLinks in nix/packages.nix).
 #
 # Tools scoped to a single dev shell rather than to commonPackages are checked
 # only in that shell, keyed off XRPL_DEVSHELL.
@@ -36,16 +34,9 @@

 set -uo pipefail

-# major_version <compiler>
-# Major version of a compiler on PATH, or "unknown" when it isn't there.
-major_version() {
-    local version
-    version="$("$1" -dumpversion 2>/dev/null)" || version=""
-    version="${version%%.*}"
-    printf '%s' "${version:-unknown}"
-}
-
-llvm_version="$(major_version clang)"
+# Version suffixes of the Nix tool links, tracking nix/packages.nix.
+gcc_version=15
+llvm_version=22

 missing=()
 checked=0
@@ -121,7 +112,6 @@ if [ "${os}" = "linux" ] || [ "${os}" = "macos" ]; then
    check ClangBuildAnalyzer
    check curl
    check file
-    check jq
    check less
    check make
    # net-tools netstat reports "net-tools X.Y"; macOS ships BSD netstat with no
@@ -190,7 +180,6 @@ fi
 if [ "${os}" = "linux" ]; then
    echo
    echo "GCC toolchain:"
-    gcc_version="$(major_version gcc)"
    check gcc
    check "gcc-${gcc_version}"
    check g++
@@ -1,65 +0,0 @@
-#!/usr/bin/env bash
-# Fail if a binary of a build-context Conan package loads anything from the Nix
-# store other than glibc, or cannot resolve a library at all.
-#
-# Only binaries linked by the Nix toolchain are checked, i.e. those recording a
-# store path as their interpreter or RUNPATH. Prebuilt upstream binaries (such
-# as the ones the cmake package ships) use the system loader instead.
-#
-# Build-context packages provide the tools that run during the build (protoc,
-# grpc_cpp_plugin, ...). Their package ID does not change when a Nix toolchain
-# update moves the GCC runtime to a new store path, so a cached binary has to
-# get by with the pinned glibc alone. See docs/build/nix.md.
-#
-# Usage: bin/nix/check-build-context-runtime.sh <graph.json>
-#   <graph.json> is the output of `conan install --format=json`.
-
-set -euo pipefail
-
-if [ "$#" -ne 1 ]; then
-    echo "usage: $0 <graph.json>" >&2
-    exit 2
-fi
-
-if [ "$(uname -s)" != "Linux" ]; then
-    echo "$0: Linux only" >&2
-    exit 2
-fi
-
-folders="$(jq -r '.graph.nodes[] | select(.context == "build" and .package_folder) | .package_folder' "$1" | sort -u)"
-
-checked=0
-failed=0
-
-while IFS= read -r file; do
-    case "$(file -b "${file}")" in
-        ELF*) ;;
-        *) continue ;;
-    esac
-    [[ "$(readelf -ldW "${file}")" == */nix/store/* ]] || continue
-    checked=$((checked + 1))
-
-    # `ldd` lists the interpreter and every library as the loader resolves them.
-    if deps="$(ldd "${file}" 2>&1)"; then
-        bad="$(printf '%s\n' "${deps}" |
-            grep -E 'not found|/nix/store/' |
-            grep -vE '/nix/store/[^/]+-glibc-[^/]+/' || true)"
-    else
-        case "${deps}" in
-            *"not a dynamic executable"*) continue ;;
-        esac
-        bad="${deps}"
-    fi
-    if [ -n "${bad}" ]; then
-        failed=$((failed + 1))
-        echo "::error file=${file}::loads a library from the Nix store other than glibc"
-        echo "${file}"
-        echo "${bad}" | sed 's/^/    /'
-    fi
-done < <(
-    # shellcheck disable=SC2086 # one folder per line, no spaces in Conan paths
-    [ -z "${folders}" ] || find ${folders} -type f \( -perm -u+x -o -name '*.so*' \)
-)
-
-echo "Build-context packages: checked ${checked} binaries, ${failed} failed."
-[ "${failed}" -eq 0 ]
@@ -23,7 +23,7 @@ apt-get clean
 rm -rf /var/lib/apt/lists/*
 EOF

-ARG PRE_COMMIT_VERSION=4.6.2
+ARG PRE_COMMIT_VERSION=4.6.0
 RUN pip install --no-cache --break-system-packages \
    pre-commit==${PRE_COMMIT_VERSION}

@@ -26,6 +26,8 @@ import sys
 import tempfile
 from pathlib import Path

+CLANG_TIDY_VERSION = 22
+
 # Extensions run-clang-tidy can analyse: `.cpp` translation units and, thanks to
 # the `verify_headers` build option, `.h`/`.hpp` headers (each has its own
 # compile_commands.json entry). `.ipp` fragments have no entry and are skipped.
@@ -37,21 +39,8 @@ TIDY_EXTENSIONS = {".cpp", ".h", ".hpp"}
 FILEPATH_RE = re.compile(r"^(\s*(?:-\s+)?FilePath:\s*)'((?:[^']|'')*)'\s*$")


-def clang_tidy_major() -> str | None:
-    """Major version of the `clang-tidy` on PATH, which run-clang-tidy invokes."""
-    if not (clang_tidy := shutil.which("clang-tidy")):
-        return None
-    output = subprocess.run(
-        [clang_tidy, "--version"], capture_output=True, text=True
-    ).stdout
-    m = re.search(r"LLVM version (\d+)", output)
-    return m.group(1) if m else None
-
-
-def find_tool(name: str, version: str | None) -> str | None:
-    """Prefer `<name>-<version>`, so a host tool of another version can't win."""
-    candidates = ([f"{name}-{version}"] if version else []) + [name]
-    for candidate in candidates:
+def find_tool(name: str) -> str | None:
+    for candidate in (f"{name}-{CLANG_TIDY_VERSION}", name):
        if path := shutil.which(candidate):
            return path
    return None
@@ -114,9 +103,8 @@ def main():
    if not files:
        return 0

-    version = clang_tidy_major()
-    run_clang_tidy = find_tool("run-clang-tidy", version)
-    clang_apply_replacements = find_tool("clang-apply-replacements", version)
+    run_clang_tidy = find_tool("run-clang-tidy")
+    clang_apply_replacements = find_tool("clang-apply-replacements")
    missing = [
        name
        for name, path in (
@@ -126,10 +114,9 @@ def main():
        if not path
    ]
    if missing:
-        tried = f" (tried the '-{version}' suffix too)" if version else ""
        print(
            f"clang-tidy check failed: TIDY is enabled but {' and '.join(missing)} "
-            f"was not found in PATH{tried}.",
+            f"was not found in PATH (tried the '-{CLANG_TIDY_VERSION}' suffix too).",
            file=sys.stderr,
        )
        return 1
@@ -17,7 +17,7 @@
   (runtime libraries resolved through the rpath) are skipped too.
   Everywhere else `patch_nix_binary` is a no-op.

-   The default loader is resolved by bin/nix/default-loader-path.sh.
+   The default loader is resolved by bin/default-loader-path.sh.
 #]===================================================================]

 include_guard(GLOBAL)
@@ -25,7 +25,7 @@ include_guard(GLOBAL)
 include(CompilationEnv)

 # Resolves the system default ELF loader path for the current architecture.
-set(_loader_path_script "${CMAKE_SOURCE_DIR}/bin/nix/default-loader-path.sh")
+set(_loader_path_script "${CMAKE_SOURCE_DIR}/bin/default-loader-path.sh")

 if(
    is_linux
@@ -292,14 +292,6 @@ if(xrpld)
    )
    target_sources(xrpld PRIVATE ${sources})

-    rpcspec_generate_instantiations(
-        OUT_VAR rpcspec_instantiations
-        VALUE_TYPE "::json::Value"
-        VIEW_HEADER "xrpld/rpc/detail/JsonObjectView.hpp"
-        HANDLERS book_changes ledger transaction_entry
-    )
-    target_sources(xrpld PRIVATE ${rpcspec_instantiations})
-
    if(tests)
        file(
            GLOB_RECURSE sources
@@ -330,7 +322,6 @@ if(xrpld)
        # antithesis_instrumentation.h, which is not exported as INTERFACE
        target_include_directories(
            xrpld
-            SYSTEM
            PRIVATE ${CMAKE_SOURCE_DIR}/external/antithesis-sdk
        )
    endif()
@@ -77,24 +77,19 @@ if(is_clang)
    message(STATUS "  Ignorelist: ${ignorelist_path}")
 endif()

-# Define the SANITIZERS macro for BuildInfo.cpp, plus one of XRPL_ASAN,
-# XRPL_TSAN and XRPL_UBSAN per active sanitizer, so that code can test for a
-# specific one with #ifdef instead of parsing the dot-joined SANITIZERS string.
+# Define SANITIZERS macro for BuildInfo.cpp
 set(sanitizers_list)
 if(SANITIZERS MATCHES "address")
    set(enable_asan ON)
    list(APPEND sanitizers_list "ASAN")
-    target_compile_definitions(common INTERFACE XRPL_ASAN)
 endif()
 if(SANITIZERS MATCHES "thread")
    set(enable_tsan ON)
    list(APPEND sanitizers_list "TSAN")
-    target_compile_definitions(common INTERFACE XRPL_TSAN)
 endif()
 if(SANITIZERS MATCHES "undefinedbehavior")
    set(enable_ubsan ON)
    list(APPEND sanitizers_list "UBSAN")
-    target_compile_definitions(common INTERFACE XRPL_UBSAN)
 endif()

 if(sanitizers_list)
@@ -3,7 +3,7 @@
    "requires": [
        "zlib/1.3.2#1cb806da49011867778ffb6ac7190fcb%1782392402.122708",
        "xxhash/0.8.3#681d36a0a6111fc56e5e45ea182c19cc%1782392402.420688",
-        "xrpl-rpc-spec/0.1.21#d536f87a2ae7d313452746cfa3ac4404%1790869005.122975",
+        "xrpl-rpc-spec/0.1.19#870b2d3abcfbbf13b61c2d3c69495060%1790348286.187549",
        "sqlite3/3.53.0#324ada52333108388a9a6108bfa96734%1782392403.185447",
        "soci/4.0.3#e726491a03468795453f7c83fc924a96%1782392402.679521",
        "snappy/1.1.10#968fef506ff261592ec30c574d4a7809%1782307151.633168",
@@ -20,7 +20,7 @@
        "libarchive/3.8.7#c446109bd1f1d8ba7936c94189bc50e6%1782392403.066892",
        "jemalloc/5.3.1#1fc58d55316041f10fbc1e8a2eae632a%1776700028.228",
        "gtest/1.17.0#5224b3b3ff3b4ce1133cbdd27d53ee7d%1782392402.791979",
-        "grpc/1.81.1#aaa93ab6cda2f2baa6a84490582c8adf%1791284951.826256",
+        "grpc/1.81.1#b87796a4269034856cbc1a2522db16eb%1788275071.530512",
        "fast_float/8.2.10#f6f28d6bb22112078e7dbda611caf681%1785888854.601666",
        "ed25519/2015.03#ae761bdc52730a843f0809bdf6c1b1f6%1782307148.15562",
        "date/3.0.4#862e11e80030356b53c2c38599ceb32b%1782392402.538492",
@@ -34,15 +34,11 @@
    "build_requires": [
        "zlib/1.3.2#1cb806da49011867778ffb6ac7190fcb%1782392402.122708",
        "strawberryperl/5.32.1.1#8d114504d172cfea8ea1662d09b6333e%1782395692.540639",
-        "re2/20251105#8579cfd0bda4daf0683f9e3898f964b4%1782392402.431897",
        "protobuf/6.33.5#ff253ead763bd8d9904a52979cd21e81%1782392410.233933",
-        "openssl/3.6.3#f806de8933e3bf6f01016c6a888cee2e%1783945160.863288",
        "nasm/2.16.01#31e26f2ee3c4346ecd347911bd126904%1782395690.33162",
        "msys2/cci.latest#d22fe7b2808f5fd34d0a7923ace9c54f%1770657326.649",
        "m4/1.4.19#1727f439cf74e83826ec96d0b4904eee%1784541921.659",
-        "grpc/1.81.1#aaa93ab6cda2f2baa6a84490582c8adf%1791284951.826256",
        "cmake/4.3.3#840cf00ea09777e05c2050a50a82c722%1782392418.696091",
-        "c-ares/1.34.6#545240bb1c40e2cacd4362d6b8967650%1782392402.681654",
        "b2/5.4.2#ffd6084a119587e70f11cd45d1a386e2%1782392402.624226",
        "automake/1.16.5#b91b7c384c3deaa9d535be02da14d04f%1755524470.56",
        "autoconf/2.71#51077f068e61700d65bb05541ea1e4b0%1731054366.86",
@@ -3,13 +3,5 @@
 core:non_interactive=True
 core.download:parallel={{ os.cpu_count() }}
 core.upload:parallel={{ os.cpu_count() }}
-# Fall back to Conan Center's source backups when a recipe's upstream URL is down
-# (e.g. the GNU FTP mirrors), see
-# https://github.com/conan-io/conan-center-index/issues/28147#issuecomment-3183544772
-# The backups are only tried once every upstream URL has used up its retries,
-# so keep the retries low.
-core.sources:download_urls=["origin", "https://c3i.jfrog.io/artifactory/conan-center-backup-sources"]
-tools.files.download:retry=1
+tools.files.download:retry=5
 tools.files.download:retry_wait=10
-# Fail fast on unreachable hosts (default connect timeout is 30s), keep the 60s read timeout.
-core.net.http:timeout=(5, 60)
@@ -29,9 +29,9 @@ os.version={{ min_macos_version }}
 [conf]
 {# The Boost recipe builds with b2, which doesn't use Conan's toolchain files. #}
 {# Instead it hand-rolls the compiler for user-config.jam, #}
-{# and its fallback probes a version-suffixed binary (e.g. `g++-<major>`) before plain `g++`. #}
-{# Inside the Nix shell the wrapper only provides `g++`/`gcc` (no `-<major>` suffix), #}
-{# so on a host that also has a system `g++-<major>` the probe escapes Nix #}
+{# and its fallback probes a version-suffixed binary (e.g. `g++-15`) before plain `g++`. #}
+{# Inside the Nix shell the wrapper only provides `g++`/`gcc` (no `-15` suffix), #}
+{# so on a host that also has a system `g++-15` the probe escapes Nix #}
 {# and picks the system compiler, which is mismatched with the Nix libraries #}
 {# and breaks the build (e.g. Boost.Stacktrace link checks fail). #}
 {# Pinning the executables here short-circuits that probe so Boost (and the rest of the toolchain) #}
@@ -49,31 +49,8 @@ tools.build:compiler_executables={'c':'{{ cc_exe }}','cpp':'{{ cxx_exe }}'}
 user.package:cppstd_version=23
 tools.info.package_id:confs+=["user.package:cppstd_version"]

-{% if os == "Linux" and context == "build" %}
-{# Build-context executables (protoc, grpc_cpp_plugin, build tools) run during the build #}
-{# and would otherwise load libstdc++/libgcc from a Nix store path #}
-{# that might change with a Nix toolchain update. #}
-{# --as-needed drops the ones they link but don't use, #}
-{# such as libatomic for grpc_cpp_plugin on arm64. #}
-{% set static_runtime_flags = ["-static-libstdc++", "-static-libgcc", "-Wl,--as-needed"] %}
-tools.build:exelinkflags+={{ static_runtime_flags }}
-tools.info.package_id:confs+=["tools.build:exelinkflags"]
-{% endif %}
-
-{% if os == "Linux" and context == "build" %}
-{# b2 links itself with its own script, which ignores exelinkflags #}
-{# and only takes CXXFLAGS when use_cxx_env is set (see [buildenv] below). #}
-[options]
-b2/*:use_cxx_env=True
-{% endif %}
-
-[buildenv]
-{# gRPC emits thousands of compiler warnings that we cannot act on. #}
-{# CMake picks up CXXFLAGS, and unlike tools.build:cxxflags, #}
-{# this is not part of the package ID, so binaries stay shareable. #}
-grpc/*:CXXFLAGS=-w
-
 {% if os == "Macos" %}
+[buildenv]
 {# os.version adds -mmacosx-version-min to compiler command lines, #}
 {# but Boost.Context's b2 assembly (.S) rule ignores it, #}
 {# so those objects keep the host SDK version and still warn at link time. #}
@@ -81,7 +58,3 @@ grpc/*:CXXFLAGS=-w
 {# Scoped to boost/* since it is the only gap. #}
 boost/*:MACOSX_DEPLOYMENT_TARGET={{ min_macos_version }}
 {% endif %}
-
-{% if os == "Linux" and context == "build" %}
-b2/*:CXXFLAGS={{ static_runtime_flags | join(" ") }}
-{% endif %}
@@ -5,9 +5,6 @@ include(default)

 {% if not sanitizers %}
 {# Sanitizers not configured; no additional settings needed #}
-{% elif context == "build" %}
-{# Build-context packages are tools we run, not code we test, #}
-{# so don't instrument them #}
 {% else %}

 {% if compiler == "msvc" %}
@@ -40,7 +40,7 @@ class Xrpl(ConanFile):
        "nudb/2.0.9",
        "openssl/3.6.3",
        "soci/4.0.3",
-        "xrpl-rpc-spec/0.1.21",
+        "xrpl-rpc-spec/0.1.19",
        "zlib/1.3.2",
    ]

@@ -49,8 +49,7 @@ class Xrpl(ConanFile):
    ]

    tool_requires = [
-        "grpc/<host_version>",
-        "protobuf/<host_version>",
+        "protobuf/6.33.5",
    ]

    default_options = {
@@ -124,10 +123,6 @@ class Xrpl(ConanFile):
        "xxhash/*:shared": False,
    }

-    # default_options only reach the host context;
-    # give tool_requires (and their dependencies) the same dependency options.
-    default_build_options = {k: v for k, v in default_options.items() if "/" in k}
-
    def set_version(self):
        self.version = self.version or DEV_VERSION

@@ -154,7 +149,7 @@ class Xrpl(ConanFile):
        self.requires("xxhash/0.8.3", transitive_headers=True)

    exports_sources = (
-        "bin/nix/default-loader-path.sh",
+        "bin/default-loader-path.sh",
        "CMakeLists.txt",
        "cfg/*",
        "cmake/*",
@@ -80,12 +80,13 @@ function(add_xrpl_crate name)
    # `cc` picks its runtime flag from `crt-static` alone, so it compiles a
    # crate's C++ with `-MT`; Debug needs `-MTd` (to match cmake/XrplCompiler.cmake).
    if(is_msvc)
-        corrosion_set_env_vars(${ARG_CRATE} "$<$<CONFIG:Debug>:CXXFLAGS=-MTd>")
+        corrosion_set_env_vars(
+            ${ARG_CRATE}
+            "$<$<CONFIG:Debug>:CXXFLAGS=-MTd>"
+        )
    endif()
-    corrosion_add_cxxbridge(
-        ${name}_cxxbridge
-        CRATE ${ARG_CRATE}
-        FILES ${ARG_FILES}
+    corrosion_add_cxxbridge(${name}_cxxbridge CRATE ${ARG_CRATE} FILES
+                            ${ARG_FILES}
    )
    # Generated cxxbridge headers don't exist at configure time; CMake 3.28+
    # validates INTERFACE_SOURCES on consuming targets. Clear it to skip the
@@ -10,15 +10,14 @@ This document explains how to set one up.
 support it — see [compiler support for C++23][cpp23-support].
 The versions currently tested in CI are:

-| Compiler    | Version                         |
-| ----------- | ------------------------------- |
-| GCC         | `gccVersion` in [packages.nix]  |
-| Clang       | `llvmVersion` in [packages.nix] |
-| Apple Clang | 21                              |
-| MSVC        | Visual Studio 2026              |
+| Compiler    | Version            |
+| ----------- | ------------------ |
+| GCC         | 15.2               |
+| Clang       | 22                 |
+| Apple Clang | 21                 |
+| MSVC        | Visual Studio 2026 |

-LLVM tools (`clang-tidy` and `clang-format`)
-come from the same LLVM release as Clang.
+LLVM tools (`clang-tidy` and `clang-format`) are also pinned to version 22.

 ### Older compilers

@@ -157,4 +156,3 @@ version out of the box — run it via `run-clang-tidy`. No separate installation
 is needed.

 [cpp23-support]: https://en.cppreference.com/w/cpp/compiler_support/23
-[packages.nix]: ../../nix/packages.nix
@@ -183,36 +183,24 @@ at link or run time.
 > configuration CI covers, and no dependency binaries are published for it.

 This is checked rather than assumed.
-[`bin/nix/check-nix-store-refs.sh`](../../bin/nix/check-nix-store-refs.sh) takes one
-file or directory and fails if a binary under it resolves a store path at run time.
+[`bin/check-nix-store-refs.sh`](../../bin/check-nix-store-refs.sh) takes one file
+or directory and fails if a binary under it resolves a store path at run time.
 CI runs it over the build output and the Conan cache, and again in the upload job
 before anything is published. You can run it yourself:

 ```bash
-bin/nix/check-nix-store-refs.sh build
-bin/nix/check-nix-store-refs.sh ~/.conan2-nix
+bin/check-nix-store-refs.sh build
+bin/check-nix-store-refs.sh ~/.conan2-nix
 ```

 It works on Linux too, but asserts something narrower there: the toolchain always
-writes the store into `PT_INTERP` and `RUNPATH`. That is fine for the pinned
-glibc, whose path does not move, but not for the GCC runtime, which moves with
-every GCC update. So [`conan/profiles/default`](../../conan/profiles/default)
-links build-context packages, whose executables run during the build, with
-`-static-libstdc++ -static-libgcc -Wl,--as-needed`, and
-[`conan/profiles/sanitizers`](../../conan/profiles/sanitizers) does not
-instrument them. CI checks that they load nothing from the store but glibc, from
-the graph `conan install --format=json` writes:
+writes the store into `PT_INTERP` and `RUNPATH`, and CI builds inside an image
+whose store is fixed for its lifetime, so that is fine. Only the binaries
+[`PatchNixBinary.cmake`](../../cmake/PatchNixBinary.cmake) retargets to the
+system loader have to be clean, and those are what CI checks:

 ```bash
-bin/nix/check-build-context-runtime.sh graph.json
-```
-
-Only the binaries [`PatchNixBinary.cmake`](../../cmake/PatchNixBinary.cmake)
-retargets to the system loader have to be fully clean, and those are what CI
-checks:
-
-```bash
-bin/nix/check-nix-store-refs.sh build/xrpld
+bin/check-nix-store-refs.sh build/xrpld
 ```

 ### The libresolv stub
@@ -178,11 +178,11 @@ A binary stops starting after a `nix flake update`, or after
 dyld[57271]: Library not loaded: /nix/store/…-libresolv-93/lib/libresolv.9.dylib
 ```

-[`bin/nix/check-nix-store-refs.sh`](../../bin/nix/check-nix-store-refs.sh) finds the
-same thing without having to run anything, and names the file:
+[`bin/check-nix-store-refs.sh`](../../bin/check-nix-store-refs.sh) finds the same
+thing without having to run anything, and names the file:

 ```
-$ bin/nix/check-nix-store-refs.sh ~/.conan2-nix
+$ bin/check-nix-store-refs.sh ~/.conan2-nix
 ::error file=/Users/you/.conan2-nix/p/b/c-area24ded30c388c/p/bin/adig::references the Nix store at run time
 /Users/you/.conan2-nix/p/b/c-area24ded30c388c/p/bin/adig
    /nix/store/p4lp3xq4imd1qzqh08x8vcq2zfhi7rca-libresolv-93/lib/libresolv.9.dylib
@@ -6,7 +6,7 @@ project(antithesis-sdk-cpp VERSION 0.4.4 LANGUAGES CXX)
 add_library(antithesis-sdk-cpp INTERFACE antithesis_sdk.h)

 # Note, both sections below created by xrpld project
-target_include_directories(antithesis-sdk-cpp SYSTEM INTERFACE
+target_include_directories(antithesis-sdk-cpp INTERFACE
  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
 )
@@ -2,11 +2,11 @@
  "nodes": {
    "nixpkgs": {
      "locked": {
-        "lastModified": 1791130267,
-        "narHash": "sha256-1sjwcQMcgAbmiip/VivBSiK8p2bTkQGOvCuO7vnwfx4=",
+        "lastModified": 1781173989,
+        "narHash": "sha256-fnzKKPvS+oieI/pTzotA5tkoM47EB1NpaBcgk4R97hE=",
        "owner": "NixOS",
        "repo": "nixpkgs",
-        "rev": "9013764fcc0ea99fa16cf7aa7decf8a5c3889dd2",
+        "rev": "8c91a71d13451abc40eb9dae8910f972f979852f",
        "type": "github"
      },
      "original": {
@@ -47,11 +47,11 @@
        ]
      },
      "locked": {
-        "lastModified": 1791189933,
-        "narHash": "sha256-Y8eN7ki0Urx4Ojf4w1xSpWg8uk/3lJqK+E0Oth77rH0=",
+        "lastModified": 1784611586,
+        "narHash": "sha256-OfqgY+0hp/zseZB7uyH0U8kIDPS4scZZCyAurEplvG0=",
        "owner": "oxalica",
        "repo": "rust-overlay",
-        "rev": "e60029353d0c48d216bc4b065168ccd4079c166f",
+        "rev": "14f58845249f3552a89b07772626b8d3c632fa86",
        "type": "github"
      },
      "original": {
@@ -1,118 +0,0 @@
-#pragma once
-
-#include <functional>
-#include <mutex>
-#include <set>
-
-/**
- * RAII class to check if an Item is already being processed on another thread,
- * as indicated by it's presence in a Collection.
- *
- * If the Item is not in the Collection, it will be added under lock in the
- * ctor, and removed under lock in the dtor. The object will be considered
- * "usable" and evaluate to `true`.
- *
- * If the Item is in the Collection, no changes will be made to the collection,
- * and the CanProcess object will be considered "unusable".
- *
- * It's up to the caller to decide what "usable" and "unusable" mean. (e.g.
- * Process or skip a block of code, or set a flag.)
- *
- * The current use is to avoid lock contention that would be involved in
- * processing something associated with the Item.
- *
- * Examples:
- *
- * void IncomingLedgers::acquireAsync(LedgerHash const& hash, ...)
- * {
- *    if (CanProcess check{acquiresMutex_, pendingAcquires_, hash})
- *    {
- *      acquire(hash, ...);
- *    }
- * }
- *
- * bool
- * NetworkOPsImp::recvValidation(
- *   std::shared_ptr<STValidation> const& val,
- *   std::string const& source)
- *   {
- *       CanProcess check(
- *           validationsMutex_, pendingValidations_, val->getLedgerHash());
- *       BypassAccept bypassAccept =
- *           check ? BypassAccept::no : BypassAccept::yes;
- *       handleNewValidation(app_, val, source, bypassAccept, m_journal);
- *   }
- *
- */
-class CanProcess
-{
-public:
-    template <class Mutex, class Collection, class Item>
-    CanProcess(Mutex& mtx, Collection& collection, Item const& item)
-        : cleanup_(insert(mtx, collection, item))
-    {
-    }
-
-    ~CanProcess()
-    {
-        if (cleanup_)
-            cleanup_();
-    }
-
-    CanProcess(CanProcess const&) = delete;
-
-    CanProcess&
-    operator=(CanProcess const&) = delete;
-
-    explicit
-    operator bool() const
-    {
-        return static_cast<bool>(cleanup_);
-    }
-
-private:
-    template <bool useIterator, class Mutex, class Collection, class Item>
-    std::function<void()>
-    doInsert(Mutex& mtx, Collection& collection, Item const& item)
-    {
-        std::unique_lock<Mutex> lock(mtx);
-        // TODO: Use structured binding once LLVM 16 is the minimum supported
-        // version. See also: https://github.com/llvm/llvm-project/issues/48582
-        // https://github.com/llvm/llvm-project/commit/127bf44385424891eb04cff8e52d3f157fc2cb7c
-        auto const insertResult = collection.insert(item);
-        auto const it = insertResult.first;
-        if (!insertResult.second)
-            return {};
-        if constexpr (useIterator)
-            return [&, it]() {
-                std::unique_lock<Mutex> lock(mtx);
-                collection.erase(it);
-            };
-        else
-            return [&]() {
-                std::unique_lock<Mutex> lock(mtx);
-                collection.erase(item);
-            };
-    }
-
-    // Generic insert() function doesn't use iterators because they may get
-    // invalidated
-    template <class Mutex, class Collection, class Item>
-    std::function<void()>
-    insert(Mutex& mtx, Collection& collection, Item const& item)
-    {
-        return doInsert<false>(mtx, collection, item);
-    }
-
-    // Specialize insert() for std::set, which does not invalidate iterators for
-    // insert and erase
-    template <class Mutex, class Item>
-    std::function<void()>
-    insert(Mutex& mtx, std::set<Item>& collection, Item const& item)
-    {
-        return doInsert<true>(mtx, collection, item);
-    }
-
-    // If set, then the item is "usable"
-    std::function<void()> cleanup_;
-};
@@ -3,84 +3,9 @@
 #include <algorithm>
 #include <cassert>
 #include <cstddef>
-#include <cstdint>
-#include <limits>
-#include <optional>

 namespace xrpl {

-/**
- * Add two signed 64-bit integers, returning std::nullopt when the exact
- * mathematical sum is not representable in std::int64_t.
- */
-[[nodiscard]] constexpr std::optional<std::int64_t>
-checkedAdd(std::int64_t a, std::int64_t b) noexcept
-{
-    using L = std::numeric_limits<std::int64_t>;
-
-    if ((b > 0 && a > L::max() - b) || (b < 0 && a < L::min() - b))
-        return std::nullopt;
-
-    return a + b;
-}
-
-/**
- * Subtract two signed 64-bit integers, returning std::nullopt when the exact
- * mathematical difference is not representable in std::int64_t.
- */
-[[nodiscard]] constexpr std::optional<std::int64_t>
-checkedSub(std::int64_t a, std::int64_t b) noexcept
-{
-    using L = std::numeric_limits<std::int64_t>;
-
-    if ((b > 0 && a < L::min() + b) || (b < 0 && a > L::max() + b))
-        return std::nullopt;
-
-    return a - b;
-}
-
-static_assert(checkedAdd(0, 0) == 0);
-static_assert(checkedAdd(1, -1) == 0);
-static_assert(checkedAdd(-5, 2) == -3);
-static_assert(!checkedAdd(std::numeric_limits<std::int64_t>::max(), 1).has_value());
-static_assert(!checkedAdd(std::numeric_limits<std::int64_t>::min(), -1).has_value());
-static_assert(
-    checkedAdd(std::numeric_limits<std::int64_t>::max() - 1, 1) ==
-    std::numeric_limits<std::int64_t>::max());
-static_assert(
-    checkedAdd(
-        std::numeric_limits<std::int64_t>::min(),
-        std::numeric_limits<std::int64_t>::max()) == -1);
-static_assert(
-    checkedAdd(
-        std::numeric_limits<std::int64_t>::max(),
-        std::numeric_limits<std::int64_t>::min()) == -1);
-static_assert(
-    !checkedAdd(std::numeric_limits<std::int64_t>::max(), std::numeric_limits<std::int64_t>::max())
-         .has_value());
-static_assert(
-    !checkedAdd(std::numeric_limits<std::int64_t>::min(), std::numeric_limits<std::int64_t>::min())
-         .has_value());
-
-static_assert(checkedSub(0, 0) == 0);
-static_assert(checkedSub(1, 1) == 0);
-static_assert(checkedSub(-5, 2) == -7);
-static_assert(checkedSub(-5, -2) == -3);
-static_assert(!checkedSub(std::numeric_limits<std::int64_t>::min(), 1).has_value());
-static_assert(!checkedSub(std::numeric_limits<std::int64_t>::max(), -1).has_value());
-static_assert(
-    checkedSub(std::numeric_limits<std::int64_t>::min() + 1, 1) ==
-    std::numeric_limits<std::int64_t>::min());
-static_assert(
-    checkedSub(-1, std::numeric_limits<std::int64_t>::max()) ==
-    std::numeric_limits<std::int64_t>::min());
-static_assert(
-    !checkedSub(std::numeric_limits<std::int64_t>::max(), std::numeric_limits<std::int64_t>::min())
-         .has_value());
-static_assert(
-    !checkedSub(std::numeric_limits<std::int64_t>::min(), std::numeric_limits<std::int64_t>::max())
-         .has_value());
-
 /**
 * Calculate one number divided by another number in percentage.
 * The result is rounded up to the next integer, and capped in the range [0,100]
@@ -110,10 +110,10 @@ static_assert(
 *
 * However, it does not have sufficient precision to represent the full integer
 * range of int64_t values (-2^63 to 2^63-1), which are needed for XRP and MPT
- * values. The implementation of SingleAssetVault, LendingProtocol, and
- * MPTokensV2 need to represent those integer values accurately and precisely,
- * both for the STNumber field type, and for internal calculations. That
- * necessitated the "large" scale.
+ * values. The implementation of SingleAssetVault, and LendingProtocol need to
+ * represent those integer values accurately and precisely, both for the
+ * STNumber field type, and for internal calculations. That necessitated the
+ * "large" scale.
 *
 * The "Large" scales are intended to represent all values that can be represented
 * by an STAmount - IOUs, XRP, and MPTs. It has a min value of 10^18, and a max
@@ -134,8 +134,8 @@ struct MantissaRange final
    // NOLINTBEGIN(readability-enum-initial-value)
    // The values don't matter, except for Large
    enum class MantissaScale {
-        // Small can be removed when any of featureSingleAssetVault, featureLendingProtocol, or
-        // featureMPTokensV2 are retired
+        // Small can be removed when either featureSingleAssetVault or featureLendingProtocol are
+        // retired
        Small,
        // LargeLegacy can be removed when fixCleanup3_2_0 is retired
        LargeLegacy,
@@ -311,10 +311,10 @@ concept Integral64 = std::is_same_v<T, std::int64_t> || std::is_same_v<T, std::u
 *
 * The mantissa range may be changed at runtime via setMantissaScale(). The
 * default mantissa range is "large". The range is updated whenever transaction
- * processing begins, based on whether SingleAssetVault, LendingProtocol, or
- * MPTokensV2 are enabled. If any is enabled, the mantissa range is set to
- * "large". If not, it is set to "small", preserving backward compatibility and
- * correct "amendment-gating".
+ * processing begins, based on whether SingleAssetVault or LendingProtocol are
+ * enabled. If either is enabled, the mantissa range is set to "large". If not,
+ * it is set to "small", preserving backward compatibility and correct
+ * "amendment-gating".
 *
 * It is extremely unlikely that any more calls to setMantissaScale() will be
 * needed outside of unit tests.
@@ -344,8 +344,8 @@ concept Integral64 = std::is_same_v<T, std::int64_t> || std::is_same_v<T, std::u
 * set/getMantissaScale() functions may be most appropriate. However, if the
 * test has anything to do with transaction processing, it should enable or
 * disable the amendments that control the mantissa range choice
- * (SingleAssetVault, LendingProtocol, and MPTokensV2), and/or check if any of
- * those amendments are enabled to determine which result to expect.
+ * (SingleAssetVault and LendingProtocol), and/or check if either of those
+ * amendments are enabled to determine which result to expect.
 */
 class Number final
 {
@@ -36,7 +36,7 @@ template <typename T>
 concept SomeChar = std::same_as<std::remove_cvref_t<T>, int8_t> ||
    std::same_as<std::remove_cvref_t<T>, char> || std::same_as<std::remove_cvref_t<T>, uint8_t>;

-inline constexpr std::array<std::optional<int>, 256> const kDigitLookupTable = [] {
+inline constexpr std::array<std::optional<int>, 256> const kDigitLookupTable = []() {
    std::array<std::optional<int>, 256> t{};

    for (int i = 0; i < 10; ++i)
@@ -783,7 +783,7 @@ TaggedCache<Key, T, IsKeyCache, SharedWeakUnionPointer, SharedPointerType, Hash,
        std::atomic<int>& allRemovals,
        std::scoped_lock<std::recursive_mutex> const&)
 {
-    return std::thread([&, this] {
+    return std::thread([&, this]() {
        int cacheRemovals = 0;
        int mapRemovals = 0;

@@ -863,7 +863,7 @@ TaggedCache<Key, T, IsKeyCache, SharedWeakUnionPointer, SharedPointerType, Hash,
        std::atomic<int>& allRemovals,
        std::scoped_lock<std::recursive_mutex> const&)
 {
-    return std::thread([&, this] {
+    return std::thread([&, this]() {
        // NOLINTBEGIN https://github.com/XRPLF/rippled/issues/7056
        int cacheRemovals = 0;
        int mapRemovals = 0;
@@ -17,7 +17,7 @@
 namespace xrpl {

 template <typename Key>
-std::size_t
+static std::size_t
 extract(Key const& key)
 {
    return key;
@@ -1604,7 +1604,7 @@ AgedOrderedContainer<IsMulti, IsMap, Key, T, Clock, Compare, Allocator>::erase(
    beast::detail::AgedContainerIterator<IsConst, Iterator> pos)
    requires(!IsBoostReverseIterator<Iterator>::value)
 {
-    unlinkAndDeleteElement(&*(pos++).iterator());
+    unlinkAndDeleteElement(&*((pos++).iterator()));
    return beast::detail::AgedContainerIterator<false, Iterator>(pos.iterator());
 }

@@ -1617,7 +1617,7 @@ AgedOrderedContainer<IsMulti, IsMap, Key, T, Clock, Compare, Allocator>::erase(
    requires(!IsBoostReverseIterator<Iterator>::value)
 {
    for (; first != last;)
-        unlinkAndDeleteElement(&*(first++).iterator());
+        unlinkAndDeleteElement(&*((first++).iterator()));

    return beast::detail::AgedContainerIterator<false, Iterator>(first.iterator());
 }
@@ -2404,7 +2404,7 @@ beast::detail::AgedContainerIterator<false, Iterator>
 AgedUnorderedContainer<IsMulti, IsMap, Key, T, Clock, Hash, KeyEqual, Allocator>::erase(
    beast::detail::AgedContainerIterator<IsConst, Iterator> pos)
 {
-    unlinkAndDeleteElement(&*(pos++).iterator());
+    unlinkAndDeleteElement(&*((pos++).iterator()));
    return beast::detail::AgedContainerIterator<false, Iterator>(pos.iterator());
 }

@@ -2424,7 +2424,7 @@ AgedUnorderedContainer<IsMulti, IsMap, Key, T, Clock, Hash, KeyEqual, Allocator>
    beast::detail::AgedContainerIterator<IsConst, Iterator> last)
 {
    for (; first != last;)
-        unlinkAndDeleteElement(&*(first++).iterator());
+        unlinkAndDeleteElement(&*((first++).iterator()));

    return beast::detail::AgedContainerIterator<false, Iterator>(first.iterator());
 }
@@ -390,7 +390,7 @@ void
 hash_append(Hasher& h, boost::container::flat_set<Key, Compare, Alloc> const& v) noexcept
    requires(IsContiguouslyHashable<Key, Hasher>::value)
 {
-    h(&v.begin(), v.size() * sizeof(Key));
+    h(&(v.begin()), v.size() * sizeof(Key));
 }
 // tuple

@@ -8,7 +8,7 @@ namespace beast::insight {
 class HookImpl : public std::enable_shared_from_this<HookImpl>
 {
 public:
-    using HandlerType = std::function<void()>;
+    using HandlerType = std::function<void(void)>;

    virtual ~HookImpl() = 0;
 };
@@ -61,7 +61,7 @@ isMulticast(Address const& addr)
 inline bool
 isPrivate(Address const& addr)
 {
-    return addr.is_v4() ? isPrivate(addr.to_v4()) : isPrivate(addr.to_v6());
+    return (addr.is_v4()) ? isPrivate(addr.to_v4()) : isPrivate(addr.to_v6());
 }

 /**
@@ -70,7 +70,7 @@ isPrivate(Address const& addr)
 inline bool
 isPublic(Address const& addr)
 {
-    return addr.is_v4() ? isPublic(addr.to_v4()) : isPublic(addr.to_v6());
+    return (addr.is_v4()) ? isPublic(addr.to_v4()) : isPublic(addr.to_v6());
 }

 }  // namespace ip
@@ -34,7 +34,7 @@ typeName()
        name += " volatile";
    if (std::is_lvalue_reference_v<T>)
    {
-        name += '&';
+        name += "&";
    }
    else if (std::is_rvalue_reference_v<T>)
    {
@@ -20,7 +20,7 @@ namespace beast::unit_test {
 namespace detail {

 template <class String>
-std::string
+static std::string
 makeReason(String const& reason, char const* file, int line)
 {
    std::string s(reason);
@@ -47,8 +47,8 @@ public:
    template <class F, class... Args>
    explicit Thread(Suite& s, F&& f, Args&&... args) : s_(&s)
    {
-        std::function<void()> b = [f = std::forward<F>(f),
-                                   ... args = std::forward<Args>(args)] mutable {
+        std::function<void(void)> b = [f = std::forward<F>(f),
+                                       ... args = std::forward<Args>(args)]() mutable {
            std::invoke(f, args...);
        };
        t_ = std::thread(&Thread::run, this, std::move(b));
@@ -94,7 +94,7 @@ public:

 private:
    void
-    run(std::function<void()> f)
+    run(std::function<void(void)> f)
    {
        try
        {
@@ -54,7 +54,7 @@ JobQueue::Coro::post()
    }

    // sp keeps 'this' alive
-    if (jq_.addJob(type_, name_, [this, sp = shared_from_this()] { resume(); }))
+    if (jq_.addJob(type_, name_, [this, sp = shared_from_this()]() { resume(); }))
    {
        return true;
    }
@@ -130,7 +130,7 @@ inline void
 JobQueue::Coro::join()
 {
    std::unique_lock<std::mutex> lk(mutexRun_);
-    cv_.wait(lk, [this] { return !running_; });
+    cv_.wait(lk, [this]() { return !running_; });
 }

 }  // namespace xrpl
@@ -221,7 +221,7 @@ public:
    /**
     * Add a suppression peer and get message's relay status.
     * Return pair:
-     * element 1: true if the key is added.
+     * element 1: true if the peer is added.
     * element 2: optional is seated to the relay time point or
     * is unseated if has not relayed yet.
     */
@@ -1,17 +1,11 @@
 #pragma once

-#include <xrpl/basics/base_uint.h>
-#include <xrpl/basics/chrono.h>
 #include <xrpl/beast/utility/Journal.h>
 #include <xrpl/ledger/ApplyView.h>
 #include <xrpl/ledger/ReadView.h>
 #include <xrpl/ledger/entries/SLEBase.h>
 #include <xrpl/protocol/Indexes.h>
 #include <xrpl/protocol/LedgerFormats.h>
-#include <xrpl/protocol/SField.h>
-
-#include <map>
-#include <set>

 namespace xrpl {

@@ -31,52 +25,6 @@ public:
        : Base(keylet::amendments(), view, j)
    {
    }
-
-    /**
-     * Returns the set of amendments this entry reports as enabled.
-     *
-     * @return the set of enabled amendments.
-     */
-    [[nodiscard]] std::set<UInt256>
-    enabledAmendments() const
-    {
-        std::set<UInt256> amendments;
-
-        if (this->exists() && (*this)->isFieldPresent(sfAmendments))
-        {
-            auto const& v = (*this)->getFieldV256(sfAmendments);
-            amendments.insert_range(v);
-        }
-
-        return amendments;
-    }
-
-    /**
-     * Returns a map of amendments that have achieved majority, to the time
-     * majority was reached.
-     *
-     * @return a map of amendment to the time majority was reached.
-     */
-    [[nodiscard]] std::map<UInt256, NetClock::time_point>
-    majorityAmendments() const
-    {
-        std::map<UInt256, NetClock::time_point> ret;
-
-        if (this->exists() && (*this)->isFieldPresent(sfMajorities))
-        {
-            using TimePoint = NetClock::time_point;
-            using Duration = TimePoint::duration;
-
-            auto const majorities = (*this)->getFieldArray(sfMajorities);
-
-            for (auto const& m : majorities)
-            {
-                ret[m.getFieldH256(sfAmendment)] = TimePoint(Duration(m.getFieldU32(sfCloseTime)));
-            }
-        }
-
-        return ret;
-    }
 };

 using AmendmentsEntryR = AmendmentsEntry<ReadView>;
@@ -1,17 +1,11 @@
 #pragma once

-#include <xrpl/basics/base_uint.h>
 #include <xrpl/beast/utility/Journal.h>
 #include <xrpl/ledger/ApplyView.h>
 #include <xrpl/ledger/ReadView.h>
 #include <xrpl/ledger/entries/SLEBase.h>
 #include <xrpl/protocol/Indexes.h>
 #include <xrpl/protocol/LedgerFormats.h>
-#include <xrpl/protocol/SField.h>
-#include <xrpl/protocol/STVector256.h>
-
-#include <cstddef>
-#include <optional>

 namespace xrpl {

@@ -31,31 +25,6 @@ public:
        : Base(keylet::skip(), view, j)
    {
    }
-
-    /**
-     * Looks up a hash `diff` slots back from the most recent entry in the
-     * sfHashes vector (diff == 0 is the most recent entry).
-     *
-     * Callers decide which skip list entry to read and how to translate a
-     * target ledger sequence into `diff`; this only does the bounds check
-     * and vector indexing shared by both the recent (stride 1) and distant
-     * (stride 256) skip lists.
-     *
-     * @param diff how many slots back from the most recent hash to look up;
-     * 0 is the most recent hash.
-     * @return the hash at that slot, or std::nullopt if the entry does not
-     * exist or `diff` is out of range.
-     */
-    [[nodiscard]] std::optional<UInt256>
-    hashAt(std::size_t diff) const
-    {
-        if (!this->exists())
-            return std::nullopt;
-        STVector256 const vec = (*this)->getFieldV256(sfHashes);
-        if (vec.size() > diff)
-            return vec[vec.size() - diff - 1];
-        return std::nullopt;
-    }
 };

 using LedgerHashesEntryR = LedgerHashesEntry<ReadView>;
@@ -353,7 +353,7 @@ changeSpotPriceQuality(
        }
        if (auto const nTakerPaysPropose = (-b + root2(res)) / (2 * a); nTakerPaysPropose > 0)
        {
-            auto const nTakerPays = [&] {
+            auto const nTakerPays = [&]() {
                // The fee might make the AMM offer quality less than CLOB
                // quality. Therefore, AMM offer has to satisfy this constraint:
                // o / i >= q. Substituting o with swapAssetIn() gives: i <= O /
@@ -372,8 +372,8 @@ changeSpotPriceQuality(
            auto const takerPays =
                toAmount<TIn>(getAsset(pool.in), nTakerPays, Number::RoundingMode::Upward);
            // should not fail
-            auto amounts = TAmounts<TIn, TOut>{takerPays, swapAssetIn(pool, takerPays, tfee)};
-            if (Quality{amounts} < quality &&
+            if (auto amounts = TAmounts<TIn, TOut>{takerPays, swapAssetIn(pool, takerPays, tfee)};
+                Quality{amounts} < quality &&
                !withinRelativeDistance(Quality{amounts}, quality, Number(1, -7)))
            {
                JLOG(j.error()) << "changeSpotPriceQuality failed: " << to_string(pool.in) << " "
@@ -382,19 +382,21 @@ changeSpotPriceQuality(
                                << " " << to_string(amounts.out);
                Throw<std::runtime_error>("changeSpotPriceQuality failed");
            }
-
-            JLOG(j.trace()) << "changeSpotPriceQuality succeeded: " << to_string(pool.in) << " "
-                            << to_string(pool.out) << " "
-                            << " " << quality << " " << tfee << " " << to_string(amounts.in) << " "
-                            << to_string(amounts.out);
-            return amounts;
+            else
+            {
+                JLOG(j.trace()) << "changeSpotPriceQuality succeeded: " << to_string(pool.in) << " "
+                                << to_string(pool.out) << " "
+                                << " " << quality << " " << tfee << " " << to_string(amounts.in)
+                                << " " << to_string(amounts.out);
+                return amounts;
+            }
        }
        JLOG(j.trace()) << "changeSpotPriceQuality calc failed: " << to_string(pool.in) << " "
                        << to_string(pool.out) << " " << quality << " " << tfee;
        return std::nullopt;
    }

-    auto amounts = [&] {
+    auto amounts = [&]() {
        bool const inIntegral = getAsset(pool.in).integral();
        bool const outIntegral = getAsset(pool.out).integral();

@@ -2,10 +2,8 @@

 #include <xrpl/basics/Log.h>
 #include <xrpl/beast/utility/Journal.h>
-#include <xrpl/beast/utility/Zero.h>
 #include <xrpl/beast/utility/instrumentation.h>
 #include <xrpl/ledger/ApplyView.h>
-#include <xrpl/ledger/ReadView.h>
 #include <xrpl/ledger/helpers/AccountRootHelpers.h>
 #include <xrpl/ledger/helpers/MPTokenHelpers.h>
 #include <xrpl/ledger/helpers/RippleStateHelpers.h>
@@ -29,291 +27,6 @@

 namespace xrpl {

-/**
- * Validate that @p account may lock @p amount of a token for later delivery
- * to @p dest.
- *
- * The lock-side counterpart of escrowUnlockPreclaimHelper: every issuer
- * control (locking opt-in, authorization, freeze/lock, transferability,
- * spendable balance) that gates locking token value lives here, so any
- * transactor that locks funds applies the same rules. The signature is
- * view-based rather than PreclaimContext-based so it can also run from
- * doApply.
- */
-template <ValidIssueType T>
-TER
-escrowLockPreclaimHelper(
-    ReadView const& view,
-    AccountID const& account,
-    AccountID const& dest,
-    STAmount const& amount,
-    beast::Journal j);
-
-template <>
-inline TER
-escrowLockPreclaimHelper<Issue>(
-    ReadView const& view,
-    AccountID const& account,
-    AccountID const& dest,
-    STAmount const& amount,
-    beast::Journal j)
-{
-    auto const& issue = amount.get<Issue>();
-    auto const& issuer = amount.getIssuer();
-    // If the issuer is the same as the account, return tecNO_PERMISSION
-    if (issuer == account)
-        return tecNO_PERMISSION;
-
-    // If the lsfAllowTrustLineLocking is not enabled, return tecNO_PERMISSION
-    auto const sleIssuer = view.read(keylet::account(issuer));
-    if (!sleIssuer)
-        return tecNO_ISSUER;
-    if (!sleIssuer->isFlag(lsfAllowTrustLineLocking))
-        return tecNO_PERMISSION;
-
-    // If the account does not have a trustline to the issuer, return tecNO_LINE
-    auto const sleRippleState = view.read(keylet::trustLine(account, issuer, issue.currency));
-    if (!sleRippleState)
-        return tecNO_LINE;
-
-    STAmount const balance = (*sleRippleState)[sfBalance];
-
-    // If balance is positive, issuer must have higher address than account
-    if (balance > beast::kZero && issuer < account)
-        return tecNO_PERMISSION;  // LCOV_EXCL_LINE
-
-    // If balance is negative, issuer must have lower address than account
-    if (balance < beast::kZero && issuer > account)
-        return tecNO_PERMISSION;  // LCOV_EXCL_LINE
-
-    // If the issuer has requireAuth set, check if the account is authorized
-    if (auto const ter = requireAuth(view, issue, account); !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has requireAuth set, check if the destination is authorized
-    if (auto const ter = requireAuth(view, issue, dest); !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has frozen the account, return tecFROZEN
-    if (isFrozen(view, account, issue))
-        return tecFROZEN;
-
-    // If the issuer has frozen the destination, return tecFROZEN
-    if (isFrozen(view, dest, issue))
-        return tecFROZEN;
-
-    STAmount const spendableAmount =
-        accountHolds(view, account, issue.currency, issuer, FreezeHandling::IgnoreFreeze, j);
-
-    // If the balance is less than or equal to 0, return tecINSUFFICIENT_FUNDS
-    if (spendableAmount <= beast::kZero)
-        return tecINSUFFICIENT_FUNDS;
-
-    // If the spendable amount is less than the amount, return
-    // tecINSUFFICIENT_FUNDS
-    if (spendableAmount < amount)
-        return tecINSUFFICIENT_FUNDS;
-
-    // If the amount is not addable to the balance, return tecPRECISION_LOSS
-    if (!canAdd(spendableAmount, amount))
-        return tecPRECISION_LOSS;
-
-    return tesSUCCESS;
-}
-
-template <>
-inline TER
-escrowLockPreclaimHelper<MPTIssue>(
-    ReadView const& view,
-    AccountID const& account,
-    AccountID const& dest,
-    STAmount const& amount,
-    beast::Journal j)
-{
-    AccountID const issuer = amount.getIssuer();
-    // If the issuer is the same as the account, return tecNO_PERMISSION
-    if (issuer == account)
-        return tecNO_PERMISSION;
-
-    // If the mpt does not exist, return tecOBJECT_NOT_FOUND
-    auto const issuanceKey = keylet::mptokenIssuance(amount.get<MPTIssue>().getMptID());
-    auto const sleIssuance = view.read(issuanceKey);
-    if (!sleIssuance)
-        return tecOBJECT_NOT_FOUND;
-
-    // If the lsfMPTCanEscrow is not enabled, return tecNO_PERMISSION
-    if (!sleIssuance->isFlag(lsfMPTCanEscrow))
-        return tecNO_PERMISSION;
-
-    // If the issuer is not the same as the issuer of the mpt, return
-    // tecNO_PERMISSION
-    if (sleIssuance->getAccountID(sfIssuer) != issuer)
-        return tecNO_PERMISSION;  // LCOV_EXCL_LINE
-
-    // If the account does not have the mpt, return tecOBJECT_NOT_FOUND
-    if (!view.exists(keylet::mptoken(issuanceKey.key, account)))
-        return tecOBJECT_NOT_FOUND;
-
-    // If the issuer has requireAuth set, check if the account is
-    // authorized
-    auto const& mptIssue = amount.get<MPTIssue>();
-    if (auto const ter = requireAuth(view, mptIssue, account, AuthType::WeakAuth);
-        !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has requireAuth set, check if the destination is
-    // authorized
-    if (auto const ter = requireAuth(view, mptIssue, dest, AuthType::WeakAuth); !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has frozen the account, return tecLOCKED
-    if (isFrozen(view, account, *sleIssuance))
-        return tecLOCKED;
-
-    // If the issuer has frozen the destination, return tecLOCKED
-    if (isFrozen(view, dest, *sleIssuance))
-        return tecLOCKED;
-
-    // If the mpt cannot be transferred, return tecNO_AUTH
-    if (auto const ter = canTransfer(view, mptIssue, account, dest); !isTesSuccess(ter))
-        return ter;
-
-    STAmount const spendableAmount = accountHolds(
-        view,
-        account,
-        amount.get<MPTIssue>(),
-        FreezeHandling::IgnoreFreeze,
-        AuthHandling::IgnoreAuth,
-        j);
-
-    // If the balance is less than or equal to 0, return tecINSUFFICIENT_FUNDS
-    if (spendableAmount <= beast::kZero)
-        return tecINSUFFICIENT_FUNDS;
-
-    // If the spendable amount is less than the amount, return
-    // tecINSUFFICIENT_FUNDS
-    if (spendableAmount < amount)
-        return tecINSUFFICIENT_FUNDS;
-
-    return tesSUCCESS;
-}
-
-template <ValidIssueType T>
-TER
-escrowLockApplyHelper(
-    ApplyView& view,
-    AccountID const& issuer,
-    AccountID const& sender,
-    STAmount const& amount,
-    beast::Journal journal);
-
-template <>
-inline TER
-escrowLockApplyHelper<Issue>(
-    ApplyView& view,
-    AccountID const& issuer,
-    AccountID const& sender,
-    STAmount const& amount,
-    beast::Journal journal)
-{
-    // Defensive: Issuer cannot create an escrow
-    if (issuer == sender)
-        return tecINTERNAL;  // LCOV_EXCL_LINE
-
-    auto const ter =
-        directSendNoFee(view, sender, issuer, amount, !amount.holds<MPTIssue>(), journal);
-    if (!isTesSuccess(ter))
-        return ter;  // LCOV_EXCL_LINE
-    return tesSUCCESS;
-}
-
-template <>
-inline TER
-escrowLockApplyHelper<MPTIssue>(
-    ApplyView& view,
-    AccountID const& issuer,
-    AccountID const& sender,
-    STAmount const& amount,
-    beast::Journal journal)
-{
-    // Defensive: Issuer cannot create an escrow
-    if (issuer == sender)
-        return tecINTERNAL;  // LCOV_EXCL_LINE
-
-    auto const ter = lockEscrowMPT(view, sender, amount, journal);
-    if (!isTesSuccess(ter))
-        return ter;  // LCOV_EXCL_LINE
-    return tesSUCCESS;
-}
-
-template <ValidIssueType T>
-TER
-escrowUnlockPreclaimHelper(
-    ReadView const& view,
-    AccountID const& account,
-    STAmount const& amount,
-    bool checkFreeze = true);
-
-template <>
-inline TER
-escrowUnlockPreclaimHelper<Issue>(
-    ReadView const& view,
-    AccountID const& account,
-    STAmount const& amount,
-    bool checkFreeze)
-{
-    AccountID const& issuer = amount.getIssuer();
-    // If the issuer is the same as the account, return tesSUCCESS
-    if (issuer == account)
-        return tesSUCCESS;
-
-    // If the issuer has requireAuth set, check if the destination is authorized
-    if (auto const ter = requireAuth(view, amount.get<Issue>(), account); !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has deep frozen the destination, return tecFROZEN
-    if (checkFreeze &&
-        isDeepFrozen(view, account, amount.get<Issue>().currency, amount.getIssuer()))
-        return tecFROZEN;
-
-    return tesSUCCESS;
-}
-
-template <>
-inline TER
-escrowUnlockPreclaimHelper<MPTIssue>(
-    ReadView const& view,
-    AccountID const& account,
-    STAmount const& amount,
-    bool checkFreeze)
-{
-    AccountID const& issuer = amount.getIssuer();
-    // If the issuer is the same as the account, return tesSUCCESS
-    if (issuer == account)
-        return tesSUCCESS;
-
-    // If the mpt does not exist, return tecOBJECT_NOT_FOUND
-    auto const issuanceKey = keylet::mptokenIssuance(amount.get<MPTIssue>().getMptID());
-    auto const sleIssuance = view.read(issuanceKey);
-    if (!sleIssuance)
-        return tecOBJECT_NOT_FOUND;
-
-    // If the issuer has requireAuth set, check if the account is
-    // authorized
-    auto const& mptIssue = amount.get<MPTIssue>();
-    if (auto const ter = requireAuth(view, mptIssue, account, AuthType::WeakAuth);
-        !isTesSuccess(ter))
-        return ter;
-
-    // If the issuer has frozen the account, return tecLOCKED
-    if (checkFreeze && isFrozen(view, account, *sleIssuance))
-        return tecLOCKED;
-
-    return tesSUCCESS;
-}
-
-//------------------------------------------------------------------------------
-
 template <ValidIssueType T>
 TER
 escrowUnlockApplyHelper(
@@ -342,6 +55,9 @@ escrowUnlockApplyHelper<Issue>(
    bool createAsset,
    beast::Journal journal)
 {
+    auto const& issue = amount.get<Issue>();
+    Keylet const trustLineKey = keylet::trustLine(receiver, issue);
+    bool const recvLow = issuer > receiver;
    bool const senderIssuer = issuer == sender;
    bool const receiverIssuer = issuer == receiver;

@@ -351,10 +67,6 @@ escrowUnlockApplyHelper<Issue>(
    if (receiverIssuer)
        return tesSUCCESS;

-    auto const& issue = amount.get<Issue>();
-    Keylet const trustLineKey = keylet::trustLine(receiver, issue);
-    bool const recvLow = issuer > receiver;
-
    if (!ctx.view.exists(trustLineKey) && createAsset)
    {
        // Can the account cover the trust line's reserve?
@@ -103,7 +103,7 @@ public:
    void
    asyncHandshake(HandshakeType type, Callback cbFunc)
    {
-        if ((type == SslSocket::client) || secure_)
+        if ((type == SslSocket::client) || (secure_))
        {
            // must be ssl
            secure_ = true;
@@ -67,7 +67,7 @@ class EncodedBlob

 public:
    explicit EncodedBlob(std::shared_ptr<NodeObject> const& obj)
-        : size_([&obj] {
+        : size_([&obj]() {
            XRPL_ASSERT(obj, "xrpl::node_store::EncodedBlob::EncodedBlob : non-null input");

            if (!obj)
@@ -55,7 +55,7 @@ hash_append(Hasher& h, Book const& b)
    using beast::hash_append;
    hash_append(h, b.in, b.out);
    if (b.domain)
-        hash_append(h, *b.domain);
+        hash_append(h, *(b.domain));
 }

 Book
@@ -208,10 +208,7 @@ enum LedgerEntryType : std::uint16_t {
                                                                                                                                   \
    LEDGER_OBJECT(Sponsorship,                                                                                                     \
        LSF_FLAG(lsfSponsorshipRequireSignForFee, 0x00010000)                                                                      \
-        LSF_FLAG(lsfSponsorshipRequireSignForReserve, 0x00020000))                                                                 \
-                                                                                                                                   \
-    LEDGER_OBJECT(LoanBroker,                                                                                                      \
-        LSF_FLAG(lsfLoanBrokerPrivate, 0x00010000))
+        LSF_FLAG(lsfSponsorshipRequireSignForReserve, 0x00020000))

 // clang-format on

@@ -40,8 +40,6 @@ struct LedgerHeader

    // If validated is false, it means "not yet validated."
    // Once validated is true, it will never be set false at a later time.
-    // NOTE: If you are accessing this directly, you are probably doing it
-    //   wrong. Use LedgerMaster::isValidated().
    // VFALCO TODO Make this not mutable
    bool mutable validated = false;
    bool accepted = false;
@@ -0,0 +1,28 @@
+#pragma once
+
+namespace xrpl {
+
+/**
+ * @brief Enumeration of ledger shortcuts for specifying which ledger to use.
+ *
+ * These shortcuts provide a convenient way to reference commonly used ledgers
+ * without needing to specify their exact hash or sequence number.
+ */
+enum class LedgerShortcut {
+    /**
+     * The current working ledger (open, not yet closed)
+     */
+    Current,
+
+    /**
+     * The most recently closed ledger (may not be validated)
+     */
+    Closed,
+
+    /**
+     * The most recently validated ledger
+     */
+    Validated
+};
+
+}  // namespace xrpl
@@ -457,7 +457,9 @@ private:
    // The remove_cv and remove_reference are necessitated by the STBitString
    // types.  Their value() returns by const ref.  We return those types
    // by value.
-    template <typename T, typename V = std::remove_cvref_t<decltype(std::declval<T>().value())>>
+    template <
+        typename T,
+        typename V = std::remove_cv_t<std::remove_reference_t<decltype(std::declval<T>().value())>>>
    V
    getFieldByValue(SField const& field) const;

@@ -188,7 +188,7 @@ private:
 template <class LookupNodeID>
 STValidation::STValidation(SerialIter& sit, LookupNodeID&& lookupNodeID, DeserializeOptions options)
    : STObject(validationFormat(), sit, sfValidation, options.requireCanonicalOrder)
-    , signingPubKey_([this] {
+    , signingPubKey_([this]() {
        auto const spk = getFieldVL(sfSigningPubKey);

        if (publicKeyType(makeSlice(spk)) != KeyType::Secp256k1)
@@ -252,7 +252,7 @@ public:
    {
        auto success = (offset + (Bits / 8)) <= data_.size();
        if (success)
-            memcpy(data.begin(), &data_.front() + offset, (Bits / 8));
+            memcpy(data.begin(), &(data_.front()) + offset, (Bits / 8));
        return success;
    }

@@ -449,7 +449,7 @@ public:
    // Trait tells the requires-clause which types are allowed for construction.
    template <typename T>
    constexpr TERSubset(T rhs)
-        requires(Trait<std::remove_cvref_t<T>>::value)
+        requires(Trait<std::remove_cv_t<std::remove_reference_t<T>>>::value)
        : code_(TERtoInt(rhs))
    {
    }
@@ -226,10 +226,6 @@ inline constexpr FlagValue tfUniversalMask = ~tfUniversal;
        TF_FLAG(tfLoanUnimpair, 0x00040000),                                                                                                                   \
        MASK_ADJ(0))                                                                                                                                           \
                                                                                                                                                               \
-    TRANSACTION(LoanBrokerSet,                                                                                                                                 \
-        TF_FLAG(tfLoanBrokerPrivate, 0x00010000),                                                                                                              \
-        MASK_ADJ(0))                                                                                                                                           \
-                                                                                                                                                               \
    TRANSACTION(SponsorshipSet,                                                                                                                                \
        TF_FLAG(tfSponsorshipSetRequireSignForFee, 0x00010000)                                                                                                 \
        TF_FLAG(tfSponsorshipClearRequireSignForFee, 0x00020000)                                                                                               \
@@ -242,12 +238,6 @@ inline constexpr FlagValue tfUniversalMask = ~tfUniversal;
        TF_FLAG(tfSponsorshipEnd, 0x00010000)                                                                                                                  \
        TF_FLAG(tfSponsorshipCreate, 0x00020000)                                                                                                               \
        TF_FLAG(tfSponsorshipReassign, 0x00040000),                                                                                                            \
-        MASK_ADJ(0))                                                                                                                                          \
-                                                                                                                                                               \
-    TRANSACTION(ConfidentialMPTHolderKeyUpdate,                                                                                                                \
-        TF_FLAG(tfHolderKeyRotation, 0x00010000)                                                                                                               \
-        TF_FLAG(tfHolderKeyRecovery, 0x00020000)                                                                                                               \
-        TF_FLAG(tfCancelRecovery, 0x00040000),                                                                                                                 \
        MASK_ADJ(0))

 // clang-format on
@@ -20,7 +20,6 @@ XRPL_FEATURE(SmartEscrow,                 Supported::No,  VoteBehavior::DefaultN
 XRPL_FEATURE(LendingProtocolV1_2,         Supported::No,  VoteBehavior::DefaultNo)
 XRPL_FIX    (Cleanup3_5_0,                Supported::Yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(ConfidentialMPTKeyRotation,  Supported::No,  VoteBehavior::DefaultNo)
-XRPL_FIX    (BatchV1_2,                   Supported::Yes, VoteBehavior::DefaultYes)
 XRPL_FIX    (Cleanup3_4_0,                Supported::Yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(Sponsor,                     Supported::Yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(BatchV1_1,                   Supported::Yes, VoteBehavior::DefaultNo)
@@ -439,7 +439,6 @@ LEDGER_ENTRY(ltMPTOKEN, 0x007f, MPToken, mptoken, ({
    {sfIssuerKeyMirrorEpoch,        SoeOptional},
    {sfAuditorKeyMirrorEpoch,       SoeOptional},
    {sfHolderEncryptionKey,         SoeOptional},
-    {sfRecoveryKey,                 SoeOptional},
 }))

 /** A ledger object which tracks Oracle
@@ -549,7 +548,6 @@ LEDGER_ENTRY(ltLOAN_BROKER, 0x0088, LoanBroker, loan_broker, ({
    {sfCoverAvailable,       SoeDefault},
    {sfCoverRateMinimum,     SoeDefault},
    {sfCoverRateLiquidation, SoeDefault},
-    {sfDomainID,             SoeOptional},
 }))

 /** A ledger object representing a loan between a Borrower and a Loan Broker
@@ -330,7 +330,6 @@ TYPED_SFIELD(sfAuditorEncryptionKey,        VL,     44)
 TYPED_SFIELD(sfAmountCommitment,            VL,     45)
 TYPED_SFIELD(sfBalanceCommitment,           VL,     46)
 TYPED_SFIELD(sfBytecode,                    VL,     47)
-TYPED_SFIELD(sfRecoveryKey,                 VL,     48)

 // account (common)
 TYPED_SFIELD(sfAccount,                  ACCOUNT,    1)
@@ -900,7 +900,6 @@ TRANSACTION(ttLOAN_BROKER_SET, 74, LoanBrokerSet,
    {sfDebtMaximum, SoeOptional},
    {sfCoverRateMinimum, SoeOptional},
    {sfCoverRateLiquidation, SoeOptional},
-    {sfDomainID,             SoeOptional},
 }))

 /** This transaction deletes a Loan Broker */
@@ -1148,27 +1147,12 @@ TRANSACTION(ttCONFIDENTIAL_MPT_MIRROR_UPDATE, 92, ConfidentialMPTMirrorUpdate,
    {sfZKProof, SoeRequired},
 }))

-/** This transaction rotates or recovers a confidential MPT holder's ElGamal encryption key,
-    or cancels a recovery. */
-#if TRANSACTION_INCLUDE
-#   include <xrpl/tx/transactors/token/ConfidentialMPTHolderKeyUpdate.h>
-#endif
-TRANSACTION(ttCONFIDENTIAL_MPT_HOLDER_KEY_UPDATE, 93, ConfidentialMPTHolderKeyUpdate,
-    ({.amendment = featureConfidentialMPTKeyRotation}),
-    ({
-    {sfMPTokenIssuanceID, SoeRequired},
-    {sfHolderEncryptionKey, SoeOptional},
-    {sfConfidentialBalanceSpending, SoeOptional},
-    {sfConfidentialBalanceInbox, SoeOptional},
-    {sfZKProof, SoeOptional},
-}))
-
 /** This transaction posts an unsigned transaction on-ledger as a
    TransactionProposal, pending multi-signature collection. */
 #if TRANSACTION_INCLUDE
 #   include <xrpl/tx/transactors/proposal/TransactionProposalCreate.h>
 #endif
-TRANSACTION(ttTRANSACTION_PROPOSAL_CREATE, 95, TransactionProposalCreate,
+TRANSACTION(ttTRANSACTION_PROPOSAL_CREATE, 93, TransactionProposalCreate,
    ({.amendment = featureCosign}),
    ({
    {sfProposedTransaction, SoeRequired},
@@ -335,30 +335,6 @@ public:
    {
        return this->sle_->isFieldPresent(sfCoverRateLiquidation);
    }
-
-    /**
-     * @brief Get sfDomainID (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_UINT256::type::value_type>
-    getDomainID() const
-    {
-        if (hasDomainID())
-            return this->sle_->at(sfDomainID);
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfDomainID is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasDomainID() const
-    {
-        return this->sle_->isFieldPresent(sfDomainID);
-    }
 };

 /**
@@ -602,17 +578,6 @@ public:
        return *this;
    }

-    /**
-     * @brief Set sfDomainID (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    LoanBrokerBuilder&
-    setDomainID(std::decay_t<typename SF_UINT256::type::value_type> const& value)
-    {
-        object_[sfDomainID] = value;
-        return *this;
-    }
-
    /**
     * @brief Build and return the completed LoanBroker wrapper.
     * @param index The ledger entry index.
@@ -339,30 +339,6 @@ public:
    {
        return this->sle_->isFieldPresent(sfHolderEncryptionKey);
    }
-
-    /**
-     * @brief Get sfRecoveryKey (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_VL::type::value_type>
-    getRecoveryKey() const
-    {
-        if (hasRecoveryKey())
-            return this->sle_->at(sfRecoveryKey);
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfRecoveryKey is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasRecoveryKey() const
-    {
-        return this->sle_->isFieldPresent(sfRecoveryKey);
-    }
 };

 /**
@@ -576,17 +552,6 @@ public:
        return *this;
    }

-    /**
-     * @brief Set sfRecoveryKey (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    MPTokenBuilder&
-    setRecoveryKey(std::decay_t<typename SF_VL::type::value_type> const& value)
-    {
-        object_[sfRecoveryKey] = value;
-        return *this;
-    }
-
    /**
     * @brief Build and return the completed MPToken wrapper.
     * @param index The ledger entry index.
@@ -1,279 +0,0 @@
-// This file is auto-generated. Do not edit.
-#pragma once
-
-#include <xrpl/protocol/STTx.h>
-#include <xrpl/protocol/STParsedJSON.h>
-#include <xrpl/protocol/jss.h>
-#include <xrpl/protocol_autogen/TransactionBase.h>
-#include <xrpl/protocol_autogen/TransactionBuilderBase.h>
-#include <xrpl/json/json_value.h>
-
-#include <stdexcept>
-#include <optional>
-
-namespace xrpl::transactions {
-
-class ConfidentialMPTHolderKeyUpdateBuilder;
-
-/**
- * @brief Transaction: ConfidentialMPTHolderKeyUpdate
- *
- * Type: ttCONFIDENTIAL_MPT_HOLDER_KEY_UPDATE (93)
- * Delegable: Delegation::NotDelegable
- * Amendment: featureConfidentialMPTKeyRotation
- * Privileges: Privilege::NoPriv
- *
- * Immutable wrapper around STTx providing type-safe field access.
- * Use ConfidentialMPTHolderKeyUpdateBuilder to construct new transactions.
- */
-class ConfidentialMPTHolderKeyUpdate : public TransactionBase
-{
-public:
-    static constexpr xrpl::TxType txType = ttCONFIDENTIAL_MPT_HOLDER_KEY_UPDATE;
-
-    /**
-     * @brief Construct a ConfidentialMPTHolderKeyUpdate transaction wrapper from an existing STTx object.
-     * @throws std::runtime_error if the transaction type doesn't match.
-     */
-    explicit ConfidentialMPTHolderKeyUpdate(std::shared_ptr<STTx const> tx)
-        : TransactionBase(std::move(tx))
-    {
-        // Verify transaction type
-        if (tx_->getTxnType() != txType)
-        {
-            throw std::runtime_error("Invalid transaction type for ConfidentialMPTHolderKeyUpdate");
-        }
-    }
-
-    // Transaction-specific field getters
-
-    /**
-     * @brief Get sfMPTokenIssuanceID (SoeRequired)
-     * @return The field value.
-     */
-    [[nodiscard]]
-    SF_UINT192::type::value_type
-    getMPTokenIssuanceID() const
-    {
-        return this->tx_->at(sfMPTokenIssuanceID);
-    }
-
-    /**
-     * @brief Get sfHolderEncryptionKey (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_VL::type::value_type>
-    getHolderEncryptionKey() const
-    {
-        if (hasHolderEncryptionKey())
-        {
-            return this->tx_->at(sfHolderEncryptionKey);
-        }
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfHolderEncryptionKey is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasHolderEncryptionKey() const
-    {
-        return this->tx_->isFieldPresent(sfHolderEncryptionKey);
-    }
-
-    /**
-     * @brief Get sfConfidentialBalanceSpending (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_VL::type::value_type>
-    getConfidentialBalanceSpending() const
-    {
-        if (hasConfidentialBalanceSpending())
-        {
-            return this->tx_->at(sfConfidentialBalanceSpending);
-        }
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfConfidentialBalanceSpending is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasConfidentialBalanceSpending() const
-    {
-        return this->tx_->isFieldPresent(sfConfidentialBalanceSpending);
-    }
-
-    /**
-     * @brief Get sfConfidentialBalanceInbox (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_VL::type::value_type>
-    getConfidentialBalanceInbox() const
-    {
-        if (hasConfidentialBalanceInbox())
-        {
-            return this->tx_->at(sfConfidentialBalanceInbox);
-        }
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfConfidentialBalanceInbox is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasConfidentialBalanceInbox() const
-    {
-        return this->tx_->isFieldPresent(sfConfidentialBalanceInbox);
-    }
-
-    /**
-     * @brief Get sfZKProof (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_VL::type::value_type>
-    getZKProof() const
-    {
-        if (hasZKProof())
-        {
-            return this->tx_->at(sfZKProof);
-        }
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfZKProof is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasZKProof() const
-    {
-        return this->tx_->isFieldPresent(sfZKProof);
-    }
-};
-
-/**
- * @brief Builder for ConfidentialMPTHolderKeyUpdate transactions.
- *
- * Provides a fluent interface for constructing transactions with method chaining.
- * Uses STObject internally for flexible transaction construction.
- * Inherits common field setters from TransactionBuilderBase.
- */
-class ConfidentialMPTHolderKeyUpdateBuilder : public TransactionBuilderBase<ConfidentialMPTHolderKeyUpdateBuilder>
-{
-public:
-    /**
-     * @brief Construct a new ConfidentialMPTHolderKeyUpdateBuilder with required fields.
-     * @param account The account initiating the transaction.
-     * @param mPTokenIssuanceID The sfMPTokenIssuanceID field value.
-     * @param sequence Optional sequence number for the transaction.
-     * @param fee Optional fee for the transaction.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder(SF_ACCOUNT::type::value_type account,
-                     std::decay_t<typename SF_UINT192::type::value_type> const& mPTokenIssuanceID,                    std::optional<SF_UINT32::type::value_type> sequence = std::nullopt,
-                    std::optional<SF_AMOUNT::type::value_type> fee = std::nullopt
-)
-        : TransactionBuilderBase<ConfidentialMPTHolderKeyUpdateBuilder>(ttCONFIDENTIAL_MPT_HOLDER_KEY_UPDATE, account, sequence, fee)
-    {
-        setMPTokenIssuanceID(mPTokenIssuanceID);
-    }
-
-    /**
-     * @brief Construct a ConfidentialMPTHolderKeyUpdateBuilder from an existing STTx object.
-     * @param tx The existing transaction to copy from.
-     * @throws std::runtime_error if the transaction type doesn't match.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder(std::shared_ptr<STTx const> tx)
-    {
-        if (tx->getTxnType() != ttCONFIDENTIAL_MPT_HOLDER_KEY_UPDATE)
-        {
-            throw std::runtime_error("Invalid transaction type for ConfidentialMPTHolderKeyUpdateBuilder");
-        }
-        object_ = *tx;
-    }
-
-    /**
-     * @brief Transaction-specific field setters
-     */
-
-    /**
-     * @brief Set sfMPTokenIssuanceID (SoeRequired)
-     * @return Reference to this builder for method chaining.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder&
-    setMPTokenIssuanceID(std::decay_t<typename SF_UINT192::type::value_type> const& value)
-    {
-        object_[sfMPTokenIssuanceID] = value;
-        return *this;
-    }
-
-    /**
-     * @brief Set sfHolderEncryptionKey (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder&
-    setHolderEncryptionKey(std::decay_t<typename SF_VL::type::value_type> const& value)
-    {
-        object_[sfHolderEncryptionKey] = value;
-        return *this;
-    }
-
-    /**
-     * @brief Set sfConfidentialBalanceSpending (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder&
-    setConfidentialBalanceSpending(std::decay_t<typename SF_VL::type::value_type> const& value)
-    {
-        object_[sfConfidentialBalanceSpending] = value;
-        return *this;
-    }
-
-    /**
-     * @brief Set sfConfidentialBalanceInbox (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder&
-    setConfidentialBalanceInbox(std::decay_t<typename SF_VL::type::value_type> const& value)
-    {
-        object_[sfConfidentialBalanceInbox] = value;
-        return *this;
-    }
-
-    /**
-     * @brief Set sfZKProof (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    ConfidentialMPTHolderKeyUpdateBuilder&
-    setZKProof(std::decay_t<typename SF_VL::type::value_type> const& value)
-    {
-        object_[sfZKProof] = value;
-        return *this;
-    }
-
-    /**
-     * @brief Build and return the ConfidentialMPTHolderKeyUpdate wrapper.
-     * @param publicKey The public key for signing.
-     * @param secretKey The secret key for signing.
-     * @return The constructed transaction wrapper.
-     */
-    ConfidentialMPTHolderKeyUpdate
-    build(PublicKey const& publicKey, SecretKey const& secretKey)
-    {
-        sign(publicKey, secretKey);
-        return ConfidentialMPTHolderKeyUpdate{std::make_shared<STTx>(std::move(object_))};
-    }
-};
-
-}  // namespace xrpl::transactions
@@ -213,32 +213,6 @@ public:
    {
        return this->tx_->isFieldPresent(sfCoverRateLiquidation);
    }
-
-    /**
-     * @brief Get sfDomainID (SoeOptional)
-     * @return The field value, or std::nullopt if not present.
-     */
-    [[nodiscard]]
-    protocol_autogen::Optional<SF_UINT256::type::value_type>
-    getDomainID() const
-    {
-        if (hasDomainID())
-        {
-            return this->tx_->at(sfDomainID);
-        }
-        return std::nullopt;
-    }
-
-    /**
-     * @brief Check if sfDomainID is present.
-     * @return True if the field is present, false otherwise.
-     */
-    [[nodiscard]]
-    bool
-    hasDomainID() const
-    {
-        return this->tx_->isFieldPresent(sfDomainID);
-    }
 };

 /**
@@ -362,17 +336,6 @@ public:
        return *this;
    }

-    /**
-     * @brief Set sfDomainID (SoeOptional)
-     * @return Reference to this builder for method chaining.
-     */
-    LoanBrokerSetBuilder&
-    setDomainID(std::decay_t<typename SF_UINT256::type::value_type> const& value)
-    {
-        object_[sfDomainID] = value;
-        return *this;
-    }
-
    /**
     * @brief Build and return the LoanBrokerSet wrapper.
     * @param publicKey The public key for signing.
@@ -18,7 +18,7 @@ class TransactionProposalCreateBuilder;
 /**
 * @brief Transaction: TransactionProposalCreate
 *
- * Type: ttTRANSACTION_PROPOSAL_CREATE (95)
+ * Type: ttTRANSACTION_PROPOSAL_CREATE (93)
 * Delegable: Delegation::NotDelegable
 * Amendment: featureCosign
 * Privileges: Privilege::NoPriv
@@ -178,7 +178,7 @@ public:
    {
        using namespace std::chrono_literals;
        LockedSociSession session = perf::measureDurationAndLog(
-            [&] { return LockedSociSession(session_, lock_); }, "checkoutDb", 10ms, j_);
+            [&]() { return LockedSociSession(session_, lock_); }, "checkoutDb", 10ms, j_);

        return session;
    }
@@ -9,6 +9,7 @@
 #include <xrpl/protocol/AccountID.h>
 #include <xrpl/protocol/ErrorCodes.h>
 #include <xrpl/protocol/LedgerHeader.h>
+#include <xrpl/protocol/LedgerShortcut.h>
 #include <xrpl/protocol/Protocol.h>
 #include <xrpl/protocol/TxMeta.h>
 #include <xrpl/protocol/TxSearched.h>
@@ -104,6 +105,21 @@ public:
    using TxnMetaLedgerType = std::tuple<Blob, Blob, std::uint32_t>;
    using MetaTxsList = std::vector<TxnMetaLedgerType>;

+    using LedgerSequence = uint32_t;
+    using LedgerHash = UInt256;
+    using LedgerSpecifier = std::variant<LedgerRange, LedgerShortcut, LedgerSequence, LedgerHash>;
+
+    struct AccountTxArgs
+    {
+        AccountID account;
+        std::optional<LedgerSpecifier> ledger;
+        bool binary = false;
+        bool forward = false;
+        uint32_t limit = 0;
+        std::optional<AccountTxMarker> marker;
+        std::optional<DelegateFilter> delegate;
+    };
+
    struct AccountTxResult
    {
        std::variant<AccountTxs, MetaTxsList> transactions;
@@ -279,7 +279,7 @@ public:
        virtual bool
        unsubPeerStatus(std::uint64_t uListener) = 0;
        virtual void
-        pubPeerStatus(std::function<json::Value()> const&) = 0;
+        pubPeerStatus(std::function<json::Value(void)> const&) = 0;

        virtual bool
        subConsensus(Ref ispListener) = 0;
@@ -196,7 +196,7 @@ public:
    virtual bool
    isFull() = 0;
    virtual void
-    setMode(OperatingMode om, char const* reason) = 0;
+    setMode(OperatingMode om) = 0;
    virtual bool
    isBlocked() = 0;
    virtual bool
@@ -41,7 +41,7 @@ public:
    }

    bool
-    prepare(std::size_t bytes, std::function<void()>) override
+    prepare(std::size_t bytes, std::function<void(void)>) override
    {
        return true;
    }
@@ -47,7 +47,7 @@ public:
     * empty vector.
     */
    virtual std::pair<boost::tribool, std::vector<boost::asio::const_buffer>>
-    prepare(std::size_t bytes, std::function<void()> resume) = 0;
+    prepare(std::size_t bytes, std::function<void(void)> resume) = 0;
 };

 template <class Streambuf>
@@ -62,7 +62,7 @@ public:
    }

    std::pair<boost::tribool, std::vector<boost::asio::const_buffer>>
-    prepare(std::size_t bytes, std::function<void()>) override
+    prepare(std::size_t bytes, std::function<void(void)>) override
    {
        if (sb_.size() == 0)
            return {true, {}};
@@ -34,7 +34,7 @@ public:
     * @return `true` if the writer is ready to provide more data.
     */
    virtual bool
-    prepare(std::size_t bytes, std::function<void()> resume) = 0;
+    prepare(std::size_t bytes, std::function<void(void)> resume) = 0;

    /**
     * Returns a ConstBufferSequence representing the input sequence.
@@ -342,10 +342,10 @@ BaseHTTPPeer<Handler, Impl>::doWriter(
    bool keepAlive,
    YieldContext doYield)
 {
-    std::function<void()> resume;
+    std::function<void(void)> resume;
    {
        auto const p = impl().shared_from_this();
-        resume = std::function<void()>([this, p, writer, keepAlive] {
+        resume = std::function<void(void)>([this, p, writer, keepAlive]() {
            util::spawn(strand_, [p, writer, keepAlive](YieldContext doYield) {
                p->doWriter(writer, keepAlive, doYield);
            });
@@ -99,7 +99,7 @@ private:
        port_.protocol.contains("wss2") || port_.protocol.contains("peer")};
    bool plain_{
        port_.protocol.contains("http") || port_.protocol.contains("ws") ||
-        port_.protocol.contains("ws2")};
+        (port_.protocol.contains("ws2"))};
    static constexpr std::chrono::milliseconds kInitialAcceptDelay{50};
    static constexpr std::chrono::milliseconds kMaxAcceptDelay{2000};
    std::chrono::milliseconds acceptDelay_{kInitialAcceptDelay};
@@ -60,7 +60,7 @@ private:
    bool closed_ = false;
    std::condition_variable cv_;
    boost::container::flat_map<Work*, std::weak_ptr<Work>> map_;
-    std::function<void()> f_;
+    std::function<void(void)> f_;

 public:
    IOList() = default;
@@ -171,7 +171,7 @@ IOList::Work::destroy()
 {
    if (!ios_)
        return;
-    std::function<void()> f;
+    std::function<void(void)> f;
    {
        std::scoped_lock const lock(ios_->m_);
        ios_->map_.erase(this);
@@ -18,8 +18,6 @@
 #include <xrpl/tx/invariants/SponsorshipInvariant.h>
 #include <xrpl/tx/invariants/VaultInvariant.h>

-#include <boost/multiprecision/cpp_int.hpp>
-
 #include <cstdint>
 #include <set>
 #include <string>
@@ -141,7 +139,7 @@ public:
 */
 class XRPNotCreated
 {
-    boost::multiprecision::int128_t drops_ = 0;
+    std::int64_t drops_ = 0;

 public:
    void
@@ -42,21 +42,10 @@ class ValidMPTIssuance
     */
    bool referenceHoldingMutated_ = false;

-    /**
-     * Flags cleared on an existing MPTokenIssuance, except lsfMPTLocked,
-     * which tfMPTUnlock clears legitimately. Every other issuance flag is
-     * fixed at creation or set-once via MPTokenIssuanceSet, so any bit
-     * accumulated here is a bug. Enforced post-fixCleanup3_5_0.
-     */
-    std::uint32_t issuanceFlagsCleared_ = 0;
-
    /**
     * MPTokens and RippleStates deleted during apply. finalize() checks each
     * holder's AccountRoot to detect vault pseudo-account holdings deleted
     * outside VaultDelete. All these checks are gated on fixCleanup3_2_0.
-     *
-     * Under fixCleanup3_5_0, finalize() also rejects any MPToken erased with
-     * a non-zero sfMPTAmount.
     */
    std::vector<std::shared_ptr<SLE const>> deletedHoldings_;

@@ -149,9 +138,8 @@ public:
 * - Convert/ConvertBack symmetry:
 * Regular MPToken balance change (±X) == COA (Confidential Outstanding Amount) change (∓X)
 * - Cannot delete MPToken with non-zero confidential state:
- * Cannot delete if any of sfConfidentialBalanceSpending, sfConfidentialBalanceInbox,
- * sfIssuerEncryptedBalance or sfAuditorEncryptedBalance is present, and the issuance's
- * sfConfidentialOutstandingAmount is non-zero. Mirrors MPTokenAuthorize::preclaim.
+ * Cannot delete if sfIssuerEncryptedBalance exists
+ * Cannot delete if sfConfidentialBalanceInbox and sfConfidentialBalanceSpending exist
 * - Privacy flag consistency:
 * MPToken confidential balance fields can only be created or changed if
 * lsfMPTCanHoldConfidentialBalance is set on the issuance.
@@ -174,8 +162,6 @@ class ValidConfidentialMPToken
        std::int64_t outstandingDelta = 0;
        SLE::const_pointer issuance;
        bool deletedWithEncrypted = false;
-        // True when an erased MPToken had a non-zero pre-tx public balance.
-        bool deletedWithBalanceBefore = false;
        bool badConsistency = false;
        bool badCOA = false;
        bool changesConfidentialFields = false;
@@ -1,8 +1,6 @@
 #pragma once

-#include <xrpl/basics/MathUtilities.h>
 #include <xrpl/basics/base_uint.h>
-#include <xrpl/basics/contract.h>
 #include <xrpl/beast/utility/Journal.h>
 #include <xrpl/beast/utility/Zero.h>
 #include <xrpl/protocol/AccountID.h>
@@ -25,7 +23,6 @@
 #include <ostream>
 #include <stdexcept>
 #include <string>
-#include <type_traits>
 #include <utility>
 #include <vector>

@@ -505,46 +502,6 @@ public:
 };
 /** @endcond */

-/** @cond INTERNAL */
-template <class T>
-[[nodiscard]] std::optional<T>
-checkedStepAddOpt(T const& lhs, T const& rhs)
-{
-    if constexpr (std::is_same_v<T, XRPAmount>)
-    {
-        if (auto const r = checkedAdd(lhs.drops(), rhs.drops()))
-            return XRPAmount{*r};
-        return std::nullopt;
-    }
-    else if constexpr (std::is_same_v<T, MPTAmount>)
-    {
-        if (auto const r = checkedAdd(lhs.value(), rhs.value()))
-            return MPTAmount{*r};
-        return std::nullopt;
-    }
-    else if constexpr (std::is_same_v<T, IOUAmount>)
-    {
-        // IOUAmount is Number-backed and throws on overflow.
-        return lhs + rhs;
-    }
-    else
-    {
-        // A new amount type must decide explicitly how to add; do not fall back
-        // to an unchecked add.
-        static_assert(sizeof(T) == 0, "checkedStepAddOpt: unsupported amount type");
-    }
-}
-
-template <class T>
-[[nodiscard]] T
-checkedStepAdd(T const& lhs, T const& rhs)
-{
-    if (auto const r = checkedStepAddOpt(lhs, rhs))
-        return *r;
-    Throw<FlowException>(tecPATH_DRY);
-}
-/** @endcond */
-
 /** @cond INTERNAL */
 // Check equal with tolerance
 bool
@@ -31,6 +31,7 @@
 #include <cstdint>
 #include <iterator>
 #include <memory>
+#include <numeric>
 #include <optional>
 #include <tuple>
 #include <type_traits>
@@ -407,7 +408,7 @@ limitOut(
    if (!qf || qf->isConst())
        return remainingOut;

-    auto const out = [&] {
+    auto const out = [&]() {
        auto const out = qf->outFromAvgQ(limitQuality);
        if (!out)
            return remainingOut;
@@ -645,21 +646,11 @@ flow(
    boost::container::flat_multiset<TOutAmt> savedOuts;
    savedOuts.reserve(maxTries);

-    // Returns std::nullopt if the aggregate overflows; callers treat that as a
-    // dry path.
-    auto sum = [](auto const& col) -> std::optional<std::decay_t<decltype(*col.begin())>> {
+    auto sum = [](auto const& col) {
        using TResult = std::decay_t<decltype(*col.begin())>;
        if (col.empty())
            return TResult{beast::kZero};
-        TResult total = *col.begin();
-        for (auto it = col.begin() + 1; it != col.end(); ++it)
-        {
-            auto const next = checkedStepAddOpt(total, *it);
-            if (!next)
-                return std::nullopt;
-            total = *next;
-        }
-        return total;
+        return std::accumulate(col.begin() + 1, col.end(), *col.begin());
    };

    // These offers only need to be removed if the payment is not
@@ -679,7 +670,7 @@ flow(
        ammContext.setMultiPath(activeStrands.size() > 1);

        // Limit only if one strand and limitQuality
-        auto const limitRemainingOut = [&] {
+        auto const limitRemainingOut = [&]() {
            if (activeStrands.size() == 1 && limitQuality)
            {
                if (auto const strand = activeStrands.get(0))
@@ -758,17 +749,9 @@ flow(
        {
            savedIns.insert(best->in);
            savedOuts.insert(best->out);
-            auto const sumOut = sum(savedOuts);
-            if (!sumOut)
-                return {tecPATH_DRY, std::move(ofrsToRmOnFail)};
-            remainingOut = outReq - *sumOut;
+            remainingOut = outReq - sum(savedOuts);
            if (sendMax)
-            {
-                auto const sumIn = sum(savedIns);
-                if (!sumIn)
-                    return {tecPATH_DRY, std::move(ofrsToRmOnFail)};
-                remainingIn = *sendMax - *sumIn;
-            }
+                remainingIn = *sendMax - sum(savedIns);

            if (flowDebugInfo)
            {
@@ -803,12 +786,8 @@ flow(
            break;
    }

-    auto const actualOutOpt = sum(savedOuts);
-    auto const actualInOpt = sum(savedIns);
-    if (!actualOutOpt || !actualInOpt)
-        return {tecPATH_DRY, std::move(ofrsToRmOnFail)};
-    auto const actualOut = *actualOutOpt;
-    auto const actualIn = *actualInOpt;
+    auto const actualOut = sum(savedOuts);
+    auto const actualIn = sum(savedIns);

    JLOG(j.trace()) << "Total flow: in: " << to_string(actualIn)
                    << " out: " << to_string(actualOut);
@@ -10,7 +10,6 @@
 #include <xrpl/tx/ApplyContext.h>
 #include <xrpl/tx/Transactor.h>

-#include <cstdint>
 #include <vector>

 namespace xrpl {
@@ -33,9 +32,6 @@ public:
    static std::vector<OptionaledField<STNumber>> const&
    getValueFields();

-    static std::uint32_t
-    getFlagsMask(PreflightContext const& ctx);
-
    static TER
    preclaim(PreclaimContext const& ctx);

@@ -57,12 +57,6 @@ public:
        ReadView const& view,
        beast::Journal const& j) override;

-    /**
-     * Inner transaction types that preflight rejects before LendingProtocolV1_2.
-     *
-     * Once the amendment is enabled the list only matters when replaying older
-     * ledgers. Remove it when LendingProtocolV1_2 is retired.
-     */
    static constexpr auto kDisabledTxTypes = std::to_array<TxType>({
        ttVAULT_CREATE,
        ttVAULT_SET,