Add 1.2.0rc2 announcement (#70)

* doc(history): add changelog for `1.2.0rc2`

* doc(blog): add Poetry `1.2.0rc2` announcement

* doc(blog): mention `ProjectPackage.version`

content/blog/2022-08-26-announcing-poetry-1-2-0rc2.md

@@ -0,0 +1,47 @@
+---
+layout: single
+title: "Announcing Poetry 1.2.0rc2"
+date: 2022-08-26 00:00:00
+categories: ["releases"]
+tags: ["1.x", "1.2"]
+---
+
+The Poetry team is pleased to announce the immediate availability of Poetry **1.2.0rc2**.
+
+<!--more-->
+
+If you have a previous version of Poetry installed via the [official installer]({{< relref "docs/#installation" >}}),
+getting Poetry **1.2.0rc2** is as easy as:
+
+```bash
+$ poetry self update --preview
+```
+
+This release fixes a few issues that were discovered by Poetry users on 1.2.0rc1.
+
+Since 1.2.0rc2 is a near-exact representation of 1.2.0, we invite users to test this release and
+report issues using the [issue tracker](https://github.com/python-poetry/poetry/issues "Poetry's issue tracker").
+
+Documentation for Poetry 1.2 is available [here](https://python-poetry.org/docs/1.2/). We also invite users to report
+any issue found in the documentation, whether it's typos, unclear definitions or missing things.
+
+For a complete list of changes, you can refer to the [change log](/history).
+
+## Lock file consistency between 1.1 and 1.2
+
+Because of a regression in Poetry 1.2 pre-releases, in some conditions, lock files generated with 1.2 were not usable on
+1.1. This is now fixed with [#6243](https://github.com/python-poetry/poetry/pull/6243).
+
+## Avoid creating virtual environment on `poetry self`
+
+Running `poetry self` was creating a virtual environment, which was unnecessary and could lead to issues. This is not
+the case anymore with [#6226](https://github.com/python-poetry/poetry/pull/6226).
+
+## Better support for plugins
+
+`ProjectPackage.set_version()` has been removed in poetry 1.2.0b2 due to hashing issues. That broke plugins setting the
+project's version dynamically. In order to cover this use case again, hashing issues have been resolved and
+`ProjectPackage.version` can be set now with [#447](https://github.com/python-poetry/poetry-core/pull/447).
+
+`Pool.remove_repository()` had some inconsistencies that made it hard to create plugins. This is now fixed
+with [#6231](https://github.com/python-poetry/poetry/pull/6231).

content/history.md

@@ -4,6 +4,22 @@ layout: single
 title: History
 ---
 
+## [1.2.0rc2] - 2022-08-26
+
+### Fixed
+
+- Fixed an issue where virtual environments were created unnecessarily when running `poetry self` commands ([#6226](https://github.com/python-poetry/poetry/pull/6226))
+- Ensure that packages' `pretty_name` are written to the lock file ([#6243](https://github.com/python-poetry/poetry/pull/6243))
+
+### Improvements
+
+- Improved the consistency of `Pool().remove_repository()` to make it easier to write poetry plugins ([#6231](https://github.com/python-poetry/poetry/pull/6231))
+
+### Docs
+
+- Removed mentions of Python 2.7 from docs ([#6235](https://github.com/python-poetry/poetry/pull/6235))
+- Added note about the difference between groups and extras ([#6232](https://github.com/python-poetry/poetry/pull/6232))
+
 ## [1.2.0rc1] - 2022-08-22
 
 ### Added
@@ -1421,9 +1437,13 @@ This release **must** be downloaded via the `get-poetry.py` script and not via t
 
 Initial release
 
-[unreleased]: https://github.com/python-poetry/poetry/compare/1.2.0b1...master
+[unreleased]: https://github.com/python-poetry/poetry/compare/1.2.0rc2...master
+[1.2.0rc2]: https://github.com/python-poetry/poetry/releases/tag/1.2.0rc2
+[1.2.0rc1]: https://github.com/python-poetry/poetry/releases/tag/1.2.0rc1
 [1.1.15]: https://github.com/python-poetry/poetry/releases/tag/1.1.15
+[1.2.0b3]: https://github.com/python-poetry/poetry/releases/tag/1.2.0b3
 [1.1.14]: https://github.com/python-poetry/poetry/releases/tag/1.1.14
+[1.2.0b2]: https://github.com/python-poetry/poetry/releases/tag/1.2.0b2
 [1.2.0b1]: https://github.com/python-poetry/poetry/releases/tag/1.2.0b1
 [1.1.13]: https://github.com/python-poetry/poetry/releases/tag/1.1.13
 [1.1.12]: https://github.com/python-poetry/poetry/releases/tag/1.1.12