Prepare 2.12.0rc1 (#15615)

[ci skip-rust]

src/python/pants/notes/2.12.x.md

@@ -1,5 +1,49 @@
 # 2.12.x Release Series
 
+## 2.12.0rc1 (May 23, 2022)
+
+### New Features
+
+* Allow turning off `export` of Python tools like `black` (Cherry-pick of #15509) ([#15511](https://github.com/pantsbuild/pants/pull/15511))
+
+* Support relative address syntax for JVM compiler plugin artifacts (Cherry-pick of #15462) ([#15468](https://github.com/pantsbuild/pants/pull/15468))
+
+### User API Changes
+
+* Upgrade Pex to 2.1.88. (Cherry-pick of #15484) ([#15485](https://github.com/pantsbuild/pants/pull/15485))
+
+### Bug fixes
+
+* Fix incorrect digest for JVM multiple `jvm_artifact(.., jar=..)` entries (Cherry-pick of #15571) ([#15611](https://github.com/pantsbuild/pants/pull/15611))
+
+* Record Scala `package object` as provided name (Cherry-pick of #15582) ([#15608](https://github.com/pantsbuild/pants/pull/15608))
+
+* Don't give a subsequent formatter an empty snapshot after skipping (Cherry-pick of #15483) ([#15602](https://github.com/pantsbuild/pants/pull/15602))
+
+* Fix lockfile generation for Docker and Terraform to not require Python backend (Cherry-pick of #15453) ([#15604](https://github.com/pantsbuild/pants/pull/15604))
+
+* Fix Scala inference not inferring a symbol name after a function call (Cherry-pick of #15565) ([#15603](https://github.com/pantsbuild/pants/pull/15603))
+
+* Fix non-deterministic order of `jvm_artifact(.., excludes=..)` (Cherry-pick of #15542) ([#15575](https://github.com/pantsbuild/pants/pull/15575))
+
+* Fix JVM resource classification and artifact grouping (Cherry-pick of #15567) ([#15573](https://github.com/pantsbuild/pants/pull/15573))
+
+* Fix `tag` filtering with `--changed-dependees` (Cherry-pick of #15546) ([#15564](https://github.com/pantsbuild/pants/pull/15564))
+
+* Improve `name=` used for `python_requirements` target generators with `tailor` (Cherry-pick of #15507) ([#15519](https://github.com/pantsbuild/pants/pull/15519))
+
+* jvm: don't generate default tool lockfiles (Cherry pick of #15488) ([#15498](https://github.com/pantsbuild/pants/pull/15498))
+
+* jvm: fix incorrect check for root-only `ClasspathEntryRequest` implementations (Cherry pick of #15494) ([#15496](https://github.com/pantsbuild/pants/pull/15496))
+
+* kotlin: the `plugin_id` field on `kotlinc_plugin` target is optional (Cherry-pick of #15459) ([#15466](https://github.com/pantsbuild/pants/pull/15466))
+
+* kotlin: remove stray scala references (Cherry-pick of #15461) ([#15465](https://github.com/pantsbuild/pants/pull/15465))
+
+### Performance
+
+* `lint` only finds targets and files if the relevant linters were specified (Cherry-pick of #15579) ([#15601](https://github.com/pantsbuild/pants/pull/15601))
+
 ## 2.12.0rc0 (May 13, 2022)
 
 ### User API Changes