gRPC Java v1.36.1 released

[Eric Anderson]

gRPC Java 1.36.1 is released and should be available on Maven Central and JCenter.

https://github.com/grpc/grpc-java/releases/tag/v1.36.1

• Fix an UnsupportedOperationException incompatibility with Netty 4.1.60.Final (#7953). This allows users of grpc-netty that may be using Netty elsewhere in their application to upgrade their Netty version to avoid exposure to recent Netty CVEs. gRPC is not impacted by those CVEs so a Netty upgrade for gRPC itself is not necessary
• xds: Fixed a bug that would drop some node information (e.g., user-agent) when reporting to LRS (#7964)
• xds: Renamed io.grpc.xds.bootstrapValue system property to io.grpc.xds.bootstrapConfig. This more closely matches the environment variable (GRPC_XDS_BOOTSTRAP_CONFIG) and avoids future confusion (#7968)
• xds: Fixed a possible IllegalStateException causing Channel panic during LB shutdown (#7942). The bug was introduced in v1.36.0. The issue likely most impacts xDS users that may leave a channel unused (no RPCs) for 30 minutes since idle timeout triggers LB shutdown