testing: fix GrpcCleanupRule issue when retrying tests (#8918)
xds: Fix XdsNameResolver blindly propagates control plane errors (#8953). This change forces the use of UNAVAILABLE for any xDS communication failures, which otherwise could greatly confuse an application
xds: fix validation code to accept new-style CertificateProviderPluginInstance (#8892)
xds: fix a concurrency issue in CSDS ClientStatus responses (#8795)
xds: Squelch "Failed to resolve name" ADS reconnection error logs. Workaround for #8886 (#8942)
xds: Improve priority failover handling for IDLE subpolicies (#8926). This mainly improves behavior with ring_hash
binder: Increase fairness across streams when limited by flow control. This can dramatically reduce latency when channel is being used for high throughput (#8835)