Readme prep for 4.0.4

README.md

@@ -19,9 +19,10 @@ This project uses a semver-parsable X.0.Z version number for releases, where X i
 Non-release versions of this project (for example on github.com/RuntimeTools/omr-agentcore) will use semver-parsable X.0.Z-dev.B version numbers, where X.0.Z is the last release with Z incremented and B is an integer. For further information on the development process go to the [appmetrics wiki][3]: [Developing](https://github.com/RuntimeTools/appmetrics/wiki/Developing).
 
 ## Version
-4.0.2
+4.0.4
 
 ## Release History
+`4.0.4` - Build fix for zAppmetrics, memory reporting for i. 
 `4.0.3` - Remove test code due to GPL licence. 
 `4.0.2` - Linux headless re-attach fix. 
 `4.0.1` - Fix Windows FileUtil compilation errors.