[main] Copy v20.0.5 release notes (#17597)

Signed-off-by: Rohit Nayak <[email protected]>
Co-authored-by: Rohit Nayak <[email protected]>

changelog/20.0/20.0.5/changelog.md

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+# Changelog of Vitess v20.0.5
+
+### Bug fixes 
+#### Query Serving
+ * [release-20.0] Fix Data race in semi-join (#17417) [#17446](https://github.com/vitessio/vitess/pull/17446)
+ * [release-20.0] Reference Table DML Join Fix (#17414) [#17473](https://github.com/vitessio/vitess/pull/17473)
+ * [release-20.0] Fix crash in the evalengine (#17487) [#17489](https://github.com/vitessio/vitess/pull/17489)
+ * [release-20.0] Always return a valid timezone in cursor (#17546) [#17550](https://github.com/vitessio/vitess/pull/17550) 
+#### VReplication
+ * [release-20.0] LookupVindex: fix CLI to allow creating non-unique lookups with single column (#17301) [#17348](https://github.com/vitessio/vitess/pull/17348)
+ * [release-20.0] SwitchTraffic: use separate context while canceling a migration (#17340) [#17365](https://github.com/vitessio/vitess/pull/17365)
+ * [release-20.0] LookupVindex bug fix: Fix typos from PR 17301 (#17423) [#17437](https://github.com/vitessio/vitess/pull/17437)
+ * [release-20.0] Tablet picker: Handle the case where a primary tablet is not setup for a shard (#17573) [#17575](https://github.com/vitessio/vitess/pull/17575) 
+#### VTorc
+ * [release-20.0] Use uint64 for binary log file position (#17472) [#17506](https://github.com/vitessio/vitess/pull/17506) 
+#### vttestserver
+ * [release-20.0] parse transaction timeout as duration (#16338) [#17405](https://github.com/vitessio/vitess/pull/17405)
+### CI/Build 
+#### General
+ * [release-20.0] Bump go version to 1.22.10 [#17337](https://github.com/vitessio/vitess/pull/17337)
+ * [release-20.0] Upgrade the Golang version to `go1.22.11` [#17562](https://github.com/vitessio/vitess/pull/17562)
+### Dependencies 
+#### Build/CI
+ * [release-20.0] Bump golang.org/x/crypto from 0.29.0 to 0.31.0 (#17376) [#17382](https://github.com/vitessio/vitess/pull/17382) 
+#### General
+ * [release-20.0] Bump golang.org/x/net from 0.25.0 to 0.33.0 (#17416) [#17421](https://github.com/vitessio/vitess/pull/17421)
+ * [release-20.0] CVE Fix: Update glog to v1.2.4 (#17524) [#17533](https://github.com/vitessio/vitess/pull/17533) 
+#### VTAdmin
+ * [release-20.0] Bump nanoid from 3.3.7 to 3.3.8 in /web/vtadmin (#17375) [#17378](https://github.com/vitessio/vitess/pull/17378)
+### Enhancement 
+#### Documentation
+ * [release-20.0] [Direct PR] [V21 backport] CobraDocs: Remove commit hash from docs. Fix issue with workdir replacement (#17392) (#17444) [#17451](https://github.com/vitessio/vitess/pull/17451) 
+#### VTorc
+ * [release-20.0] `vtorc`: require topo for `Healthy: true` in `/debug/health` (#17129) [#17352](https://github.com/vitessio/vitess/pull/17352)
+### Internal Cleanup 
+#### Build/CI
+ * [release-20.0] Security improvements to GitHub Actions (#17520) [#17530](https://github.com/vitessio/vitess/pull/17530)
+### Release 
+#### General
+ * [release-20.0] Bump to `v20.0.5-SNAPSHOT` after the `v20.0.4` release [#17323](https://github.com/vitessio/vitess/pull/17323)
+### Testing 
+#### General
+ * [release-20.0] Remove broken panic handler (#17354) [#17359](https://github.com/vitessio/vitess/pull/17359) 
+#### VReplication
+ * [release-20.0] Flaky TestTickSkip: Remove inherently flaky test (#17504) [#17512](https://github.com/vitessio/vitess/pull/17512)
+

changelog/20.0/20.0.5/release_notes.md

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+# Release of Vitess v20.0.5
+The entire changelog for this release can be found [here](https://github.com/vitessio/vitess/blob/main/changelog/20.0/20.0.5/changelog.md).
+
+The release includes 22 merged Pull Requests.
+
+Thanks to all our contributors: @app/vitess-bot, @frouioui, @mattlord, @vitess-bot
+

changelog/20.0/README.md

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 ## v20.0
+* **[20.0.5](20.0.5)**
+	* [Changelog](20.0.5/changelog.md)
+	* [Release Notes](20.0.5/release_notes.md)
+
 * **[20.0.4](20.0.4)**
 	* [Changelog](20.0.4/changelog.md)
 	* [Release Notes](20.0.4/release_notes.md)