Set version to 1.2.3

RELEASENOTES.md

@@ -14,6 +14,18 @@ If you are using Red Hat Enterprise Linux 7 or CentOS 7, you can [update using `
 
 # Releases
 
+## Version 1.2.3
+
+The `rippled` 1.2.3 release corrects a technical flaw which in some circumstances can cause a null pointer dereference that can crash the server.
+
+**New and Updated Features**
+
+This release has no new features.
+
+**Bug Fixes**
+
+- Fix a technical flaw which in some circumstances can cause a null pointer dereference that can crash the server.
+
 ## Version 1.2.2
 
 The `rippled` 1.2.2 release corrects a technical flaw in the fee escalation

src/ripple/protocol/impl/BuildInfo.cpp

@@ -30,7 +30,7 @@ namespace BuildInfo {
 //  The build version number. You must edit this for each release
 //  and follow the format described at http://semver.org/
 //------------------------------------------------------------------------------
-char const* const versionString = "1.2.2"
+char const* const versionString = "1.2.3"
 
 #if defined(DEBUG) || defined(SANITIZER)
        "+"