Prepare 2.13.0rc2 (#16636)

[ci skip-rust]

src/python/pants/notes/2.13.x.md

@@ -1,5 +1,33 @@
 # 2.13.x Release Series
 
+## 2.13.0rc2 (Aug 24, 2022)
+
+### User API Changes
+
+* Bump default version of `setuptools` to 63.4 ([#16618](https://github.com/pantsbuild/pants/pull/16618))
+
+### Bug fixes
+
+* Have `run` run `__main__.py` for non-zipapp PEXs (Cherry-pick of #16568) ([#16635](https://github.com/pantsbuild/pants/pull/16635))
+
+* Add `grpcio` to default Python module mapping ([#16604](https://github.com/pantsbuild/pants/pull/16604))
+
+* Record `RemoteStoreBlobBytesUploaded` for all upload strategies, rather than only for large blobs. (Cherry-pick of #16545) ([#16555](https://github.com/pantsbuild/pants/pull/16555))
+
+### Performance
+
+* Improve performance of `Owners` rule (Cherry-pick of #16563) ([#16597](https://github.com/pantsbuild/pants/pull/16597))
+
+* Fix performance for generating lockfiles for `pytest` and `setuptools` (Cherry-pick of #16591) ([#16596](https://github.com/pantsbuild/pants/pull/16596))
+
+### Documentation
+
+* Fix `./pants help` docs on command line specs (Cherry-pick of #16616) ([#16623](https://github.com/pantsbuild/pants/pull/16623))
+
+* Use Markdown h3 for ToC support (Cherry-pick of #15964) ([#16558](https://github.com/pantsbuild/pants/pull/16558))
+
+* Fix broken link to community page (Cherry-pick of #16468) ([#16557](https://github.com/pantsbuild/pants/pull/16557))
+
 ## 2.13.0rc1 (Aug 12, 2022)
 
 ### User API Changes