docs: added release notes for 4.22.0

docs/release-notes/release-notes-4.22.0.rst

@@ -0,0 +1,55 @@
+|RCE| 4.22.0 |RNS|
+------------------
+
+Release Date
+^^^^^^^^^^^^
+
+- 2020-10-12
+
+
+New Features
+^^^^^^^^^^^^
+
+- Reviewers: added observers as another role for reviewers.
+  Observers is a role that doesn't require voting, but still gets notified about
+  PR and should participate in review process.
+- Issue trackers: implemented more sophisticated ticket data extraction based on
+  advanced regex module. This allows using ticket references without false positives
+  like catching ticket data in an URL.
+- Channelstream: Notification about updates and comments now works via API, and both
+  Pull-requests and individual commits.
+
+
+General
+^^^^^^^
+
+- Data tables: unified tables look for main pages of rhodecode repo pages.
+- Users: autocomplete now sorts by matched username to show best matches first.
+- Pull requests: only allow actual reviewers to leave status/votes in order to not
+  confuse others users about voting from people who aren't actual reviewers.
+
+Security
+^^^^^^^^
+
+
+
+Performance
+^^^^^^^^^^^
+
+- Default reviewers: optimize diff data, and creation of PR with advanced default reviewers
+- default-reviewers: diff data should load more things lazy for better performance.
+- Pull requests: limit the amount of data saved in default reviewers data for better memory usage
+- DB: don't use lazy loaders on PR related objects, to optimize memory usage on large
+  Pull requests with lots of comments, and commits.
+
+Fixes
+^^^^^
+
+- Quick search bar: fixes #5634, crash when search on non-ascii characters.
+- Sidebar: few fixes for panel rendering of reviewers/observers for both commits and PRS.
+
+Upgrade notes
+^^^^^^^^^^^^^
+
+- Scheduled feature release.
+

docs/release-notes/release-notes.rst

@@ -9,6 +9,7 @@ Release Notes
 .. toctree::
    :maxdepth: 1
 
+   release-notes-4.22.0.rst
    release-notes-4.21.0.rst
    release-notes-4.20.1.rst
    release-notes-4.20.0.rst