[View Complete Diff of Changes](https://github.com/dotnet/fsharp/compare/e5136907ae7b5db690206fa70559d1b76bbaca72...226338e06e4773daa8e08f2d80b4af4261868742?w=1) - [Type subsumption cache, fix keys to reduce memory use](https://github.com/dotnet/fsharp/pull/18875) - [Tests/source context: allow specifying selection](https://github.com/dotnet/fsharp/pull/18877) - [Add another way to update XLF to devguide](https://github.com/dotnet/fsharp/pull/18876) - [Cache improvements: support reference identity and no eviction mode](https://github.com/dotnet/fsharp/pull/18859) - [Parser: capture named fields block separators](https://github.com/dotnet/fsharp/pull/18857)