- New UBT support for "adaptive unity builds", which can greatly increase iterative compile times
- This feature allows UBT to keep track of which source files you're currently editing between runs
- UBT will exclude your "working set" source files from all unity blob files, allowing for fast iterative compiles!
- Currently, adaptive unity builds relies on files being writable vs. read-only to determine what you're working on (P4 edit)
- Enable this new feature in your BuildConfiguration.xml file.
<BuildConfiguration>
<bUseAdaptiveUnityBuild>true</bUseAdaptiveUnityBuild>
</BuildConfiguration>
[CL 2671467 by Mike Fricker in Main branch]