TAO 3.3 is released. Check out the announcement here - https://forum.taotesting.com/discussion/593/tao-community-edition-3-3-released#latest
PhpSerializationCompilationDataService
I found reference to replacing the PhpCodeCompilationDataService with PhpSerializationCompilationDataService to see "serious performance improvements". However, the last reference I can see is from 2017, and says it shouldn't be used in production yet.
Has any one used the PhpSerializationCompilationDataService? Did it work?