Update CHANGELOG.md for 12.9.2

[ci skip]

CHANGELOG.md

@@ -2,6 +2,25 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
 
+## 12.9.2 (2020-03-31)
+
+### Fixed (5 changes)
+
+- Ensure import by URL works after a failed import. !27546
+- Fix issue/MR state not being preserved when importing a project using Project Import/Export. !27816
+- Leave upload Content-Type unchaged. !27864
+- Disable archive rate limit by default. !28264
+- Fix rake gitlab:setup failing on new installs. !28270
+
+### Changed (1 change)
+
+- Rename feature on the FE and locale.
+
+### Performance (1 change)
+
+- Index issues on sent_notifications table. !27034
+
+
 ## 12.9.1 (2020-03-26)
 
 ### Security (16 changes)

changelogs/unreleased/212264-gcs-job-log-is-stored-with-content-type-invalid-invalid.yml

----
-title: Leave upload Content-Type unchaged
-merge_request: 27864
-author:
-type: fixed

changelogs/unreleased/docs-rename-skip-outdated-jobs.yml

----
-title: Rename feature on the FE and locale
-merge_request:
-author:
-type: changed

changelogs/unreleased/georgekoltsov-fix-issues-mrs-state.yml

----
-title: Fix issue/MR state not being preserved when importing a project using Project
-  Import/Export
-merge_request: 27816
-author:
-type: fixed

changelogs/unreleased/issue_11391_2.yml

----
-title: Index issues on sent_notifications table
-merge_request: 27034
-author:
-type: performance

changelogs/unreleased/sh-check-features-table-gitaly.yml

----
-title: Fix rake gitlab:setup failing on new installs
-merge_request: 28270
-author:
-type: fixed

changelogs/unreleased/sh-disable-archive-rate-throttle-default.yml

----
-title: Disable archive rate limit by default
-merge_request: 28264
-author:
-type: fixed

changelogs/unreleased/sh-fix-import-by-url-retries.yml

----
-title: Ensure import by URL works after a failed import
-merge_request: 27546
-author:
-type: fixed