diff --git a/.github/actions/build-deps/action.yml b/.github/actions/build-deps/action.yml
index 7b2a3c385a..d99ea77bf5 100644
--- a/.github/actions/build-deps/action.yml
+++ b/.github/actions/build-deps/action.yml
@@ -28,6 +28,7 @@ runs:
         BUILD_DIR: ${{ inputs.build_dir }}
         BUILD_OPTION: ${{ inputs.force_build == 'true' && '*' || 'missing' }}
         BUILD_TYPE: ${{ inputs.build_type }}
+        VERBOSITY: ${{ inputs.verbosity }}
       run: |
         echo 'Installing dependencies.'
         mkdir -p '${{ env.BUILD_DIR }}'
@@ -38,7 +39,6 @@ runs:
           --options:host='&:tests=True' \
           --options:host='&:xrpld=True' \
           --settings:all build_type='${{ env.BUILD_TYPE }}' \
-          --conf:all tools.build:verbosity='${{ inputs.verbosity }}' \
-          --conf:all tools.compilation:verbosity='${{ inputs.verbosity }}' \
-          --conf:all tools.build:jobs=$(nproc) \
+          --conf:all tools.build:verbosity='${{ env.VERBOSITY }}' \
+          --conf:all tools.compilation:verbosity='${{ env.VERBOSITY }}' \
           ..
diff --git a/.github/scripts/strategy-matrix/linux.json b/.github/scripts/strategy-matrix/linux.json
index b8da322118..317fa640b2 100644
--- a/.github/scripts/strategy-matrix/linux.json
+++ b/.github/scripts/strategy-matrix/linux.json
@@ -73,47 +73,61 @@
       "compiler_version": "20",
       "image_sha": "6948666"
     },
+    {
+      "distro_name": "rhel",
+      "distro_version": "8",
+      "compiler_name": "gcc",
+      "compiler_version": "14",
+      "image_sha": "10e69b4"
+    },
+    {
+      "distro_name": "rhel",
+      "distro_version": "8",
+      "compiler_name": "clang",
+      "compiler_version": "any",
+      "image_sha": "10e69b4"
+    },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "12",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "13",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "clang",
       "compiler_version": "any",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "rhel",
       "distro_version": "10",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "rhel",
       "distro_version": "10",
       "compiler_name": "clang",
       "compiler_version": "any",
-      "image_sha": "6948666"
+      "image_sha": "10e69b4"
     },
     {
       "distro_name": "ubuntu",
diff --git a/.github/workflows/on-pr.yml b/.github/workflows/on-pr.yml
index 47323ee4a7..6d74486e96 100644
--- a/.github/workflows/on-pr.yml
+++ b/.github/workflows/on-pr.yml
@@ -103,6 +103,7 @@ jobs:
     if: ${{ needs.should-run.outputs.go == 'true' }}
     uses: ./.github/workflows/reusable-build-test.yml
     strategy:
+      fail-fast: false
       matrix:
         os: [linux, macos, windows]
     with:
diff --git a/.github/workflows/on-trigger.yml b/.github/workflows/on-trigger.yml
index 9d2ea81520..c1f6839d2d 100644
--- a/.github/workflows/on-trigger.yml
+++ b/.github/workflows/on-trigger.yml
@@ -65,6 +65,7 @@ jobs:
   build-test:
     uses: ./.github/workflows/reusable-build-test.yml
     strategy:
+      fail-fast: ${{ github.event_name == 'merge_group' }}
       matrix:
         os: [linux, macos, windows]
     with:
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index da0fb02c19..66ee2f3334 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   # Call the workflow in the XRPLF/actions repo that runs the pre-commit hooks.
   run-hooks:
-    uses: XRPLF/actions/.github/workflows/pre-commit.yml@af1b0f0d764cda2e5435f5ac97b240d4bd4d95d3
+    uses: XRPLF/actions/.github/workflows/pre-commit.yml@a8d7472b450eb53a1e5228f64552e5974457a21a
     with:
       runs_on: ubuntu-latest
       container: '{ "image": "ghcr.io/xrplf/ci/tools-rippled-pre-commit:sha-a8c7be1" }'
diff --git a/.github/workflows/reusable-build-test.yml b/.github/workflows/reusable-build-test.yml
index 5bc9cf2557..c6e991df79 100644
--- a/.github/workflows/reusable-build-test.yml
+++ b/.github/workflows/reusable-build-test.yml
@@ -42,7 +42,7 @@ jobs:
       - generate-matrix
     uses: ./.github/workflows/reusable-build-test-config.yml
     strategy:
-      fail-fast: false
+      fail-fast: ${{ github.event_name == 'merge_group' }}
       matrix: ${{ fromJson(needs.generate-matrix.outputs.matrix) }}
       max-parallel: 10
     with:
diff --git a/.github/workflows/reusable-notify-clio.yml b/.github/workflows/reusable-notify-clio.yml
index 99009d953e..fe749beac9 100644
--- a/.github/workflows/reusable-notify-clio.yml
+++ b/.github/workflows/reusable-notify-clio.yml
@@ -64,7 +64,9 @@ jobs:
           conan_remote_name: ${{ inputs.conan_remote_name }}
           conan_remote_url: ${{ inputs.conan_remote_url }}
       - name: Log into Conan remote
-        run: conan remote login ${{ inputs.conan_remote_name }} "${{ secrets.conan_remote_username }}" --password "${{ secrets.conan_remote_password }}"
+        env:
+          CONAN_REMOTE_NAME: ${{ inputs.conan_remote_name }}
+        run: conan remote login ${{ env.CONAN_REMOTE_NAME }} "${{ secrets.conan_remote_username }}" --password "${{ secrets.conan_remote_password }}"
       - name: Upload package
         env:
           CONAN_REMOTE_NAME: ${{ inputs.conan_remote_name }}
diff --git a/conan/global.conf b/conan/global.conf
index 41ac76da89..a184adf629 100644
--- a/conan/global.conf
+++ b/conan/global.conf
@@ -3,4 +3,4 @@
 core:non_interactive=True
 core.download:parallel={{ os.cpu_count() }}
 core.upload:parallel={{ os.cpu_count() }}
-tools.build:jobs={{ (os.cpu_count() * 4/5) | int }}
+tools.build:jobs={{ os.cpu_count() - 1 }}
diff --git a/src/xrpld/rpc/handlers/Simulate.cpp b/src/xrpld/rpc/handlers/Simulate.cpp
index 092b0b4562..35cb7587d4 100644
--- a/src/xrpld/rpc/handlers/Simulate.cpp
+++ b/src/xrpld/rpc/handlers/Simulate.cpp
@@ -72,39 +72,23 @@ getAutofillSequence(Json::Value const& tx_json, RPC::JsonContext& context)
 }
 
 static std::optional<Json::Value>
-autofillTx(Json::Value& tx_json, RPC::JsonContext& context)
+autofillSignature(Json::Value& sigObject)
 {
-    if (!tx_json.isMember(jss::Fee))
-    {
-        // autofill Fee
-        // Must happen after all the other autofills happen
-        // Error handling/messaging works better that way
-        auto feeOrError = RPC::getCurrentNetworkFee(
-            context.role,
-            context.app.config(),
-            context.app.getFeeTrack(),
-            context.app.getTxQ(),
-            context.app,
-            tx_json);
-        if (feeOrError.isMember(jss::error))
-            return feeOrError;
-        tx_json[jss::Fee] = feeOrError;
-    }
-
-    if (!tx_json.isMember(jss::SigningPubKey))
+    if (!sigObject.isMember(jss::SigningPubKey))
     {
         // autofill SigningPubKey
-        tx_json[jss::SigningPubKey] = "";
+        sigObject[jss::SigningPubKey] = "";
     }
 
-    if (tx_json.isMember(jss::Signers))
+    if (sigObject.isMember(jss::Signers))
     {
-        if (!tx_json[jss::Signers].isArray())
+        if (!sigObject[jss::Signers].isArray())
             return RPC::invalid_field_error("tx.Signers");
         // check multisigned signers
-        for (unsigned index = 0; index < tx_json[jss::Signers].size(); index++)
+        for (unsigned index = 0; index < sigObject[jss::Signers].size();
+             index++)
         {
-            auto& signer = tx_json[jss::Signers][index];
+            auto& signer = sigObject[jss::Signers][index];
             if (!signer.isObject() || !signer.isMember(jss::Signer) ||
                 !signer[jss::Signer].isObject())
                 return RPC::invalid_field_error(
@@ -129,16 +113,41 @@ autofillTx(Json::Value& tx_json, RPC::JsonContext& context)
         }
     }
 
-    if (!tx_json.isMember(jss::TxnSignature))
+    if (!sigObject.isMember(jss::TxnSignature))
     {
         // autofill TxnSignature
-        tx_json[jss::TxnSignature] = "";
+        sigObject[jss::TxnSignature] = "";
     }
-    else if (tx_json[jss::TxnSignature] != "")
+    else if (sigObject[jss::TxnSignature] != "")
     {
         // Transaction must not be signed
         return rpcError(rpcTX_SIGNED);
     }
+    return std::nullopt;
+}
+
+static std::optional<Json::Value>
+autofillTx(Json::Value& tx_json, RPC::JsonContext& context)
+{
+    if (!tx_json.isMember(jss::Fee))
+    {
+        // autofill Fee
+        // Must happen after all the other autofills happen
+        // Error handling/messaging works better that way
+        auto feeOrError = RPC::getCurrentNetworkFee(
+            context.role,
+            context.app.config(),
+            context.app.getFeeTrack(),
+            context.app.getTxQ(),
+            context.app,
+            tx_json);
+        if (feeOrError.isMember(jss::error))
+            return feeOrError;
+        tx_json[jss::Fee] = feeOrError;
+    }
+
+    if (auto error = autofillSignature(tx_json))
+        return *error;
 
     if (!tx_json.isMember(jss::Sequence))
     {