Changelog of Vitess v20.0.4

Bug fixes

Query Serving

[release-20.0] Use proper keyspace when updating the query graph of a reference DML (#17226) #17257

Topology

[release-20.0] Close zookeeper topo connection on disconnect (#17136) #17192

VTTablet

[release-20.0] Fix deadlock in messager and health streamer (#17230) #17234
[release-20.0] Fix potential deadlock in health streamer (#17261) #17269

CI/Build

Build/CI

[release-20.0] Specify Ubuntu 24.04 for all jobs (#17278) #17281

Cluster management

[release-20.0] Fix flakiness in TestListenerShutdown (#17024) #17188

General

[release-20.0] Upgrade the Golang version to go1.22.9 #17212

Enhancement

Query Serving

[release-20.0] Fix to prevent stopping buffering prematurely (#17013) #17204

Internal Cleanup

Build/CI

[release-20.0] Change the name of the vitess-tester repository (#16917) #17029

Testing

Build/CI

[release-20.0] Flakes: Address flakiness in TestZkConnClosedOnDisconnect (#17194) #17196