1.20.1 release notes

Fixes: https://pagure.io/koji/issue/2031

docs/source/release_notes/release_notes.rst

@@ -5,6 +5,7 @@ Release Notes
 .. toctree::
     :maxdepth: 1
 
+    release_notes_1.20.1
     release_notes_1.20
     release_notes_1.19.1
     release_notes_1.19

docs/source/release_notes/release_notes_1.20.1.rst

@@ -0,0 +1,128 @@
+Koji 1.20.1 Release notes
+=========================
+
+This is first regular minor release. We're trying new release cycle. It should
+involve of regular releases (1.x.0) roughly every three months. In between there
+should be one minor release (1.x.1) with bugfixes and documentation updates.
+
+Overall policy for minor release is, that it shouldn't contain anything changing
+API or any compatibility features. Neither it should touch the db schema. Client
+has to be completely compatible with 1.x.0 version.
+
+Reason to introduce them is to make quciker delivery of simple fixes to end
+users. As an administrator of koji instance you're free to not/update as you
+wish. There also needs to be clear update path from 1.x via 1.x.1 to 1.x+1.
+
+Anyway, if some security or important bugfix is found anywhere during 1.x cycle,
+we're going to do additional minor release addressing this problem. We will
+announce it properly through standard channels (mainly koji-devel mailing list).
+
+All changes can be found at `pagure <https://pagure.io/koji/roadmap/1.20.1/>`_.
+Most important changes are listed here.
+
+Migrating from Koji 1.20
+------------------------
+
+No special actions are needed.
+
+Security Fixes
+--------------
+None
+
+Client Changes
+--------------
+**Fix flags display for list-tag-inheritance**
+
+| PR: https://pagure.io/koji/pull-request/1929
+
+Fix of the bug with garbage output for given command.
+
+**Don't use full listTags in list-groups call**
+
+| PR: https://pagure.io/koji/pull-request/1967
+
+Speed improvement - sidetags introduced large tag sets which slowed down some
+calls.
+
+Library Changes
+---------------
+**Always use stream=True when iterating over a request**
+
+| PR: https://pagure.io/koji/pull-request/1993
+
+Bug introduced in 1.20 could cause kojid running out of memory.
+
+API Changes
+-----------
+None
+
+Web UI Changes
+--------------
+**Display params also for malformed tasks in webui**
+
+| PR: https://pagure.io/koji/pull-request/1488
+
+**Display some taskinfo for deleted buildtags**
+
+| PR: https://pagure.io/koji/pull-request/1920
+
+**Expect, that hub is returning GM time**
+
+| PR: https://pagure.io/koji/pull-request/1919
+
+Information on taskinfo page could have wrong times.
+
+Builder Changes
+---------------
+
+**Ensure that all keys in distrepo are lowered**
+
+| PR: https://pagure.io/koji/pull-request/1982
+
+Distrepo now should treat sigkeys as case-insensitive.
+
+System Changes
+--------------
+**Improve sql speed in build_references**
+
+| PR: https://pagure.io/koji/pull-request/1962
+
+``build_references`` was using one of the slowest SQL calls in koji. It was
+rewritten now to be faster.
+
+Utilities Changes
+-----------------
+
+Garbage Collector
+.................
+None
+
+DB Sweeper
+..........
+**Analyze/vacuum all affected tables**
+
+| PR: https://pagure.io/koji/pull-request/1944
+
+There was a mistake in vacuumed table and one another was missing.
+
+Kojikamid
+.........
+None
+
+Documentation Changes
+---------------------
+**Fix help message for list-groups**
+
+| PR: https://pagure.io/koji/pull-request/1947
+
+**Fix usage message for add-pkg**
+
+| PR: https://pagure.io/koji/pull-request/1946
+
+**improve search() API documentation**
+
+| PR: https://pagure.io/koji/pull-request/1995
+
+**Docs for kojira and koji-gc**
+
+| PR: https://pagure.io/koji/pull-request/1935