gRPC 1.45.1发布

This is release 1.45.1 (gravity) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• Switched to epoll1 as a default polling engine for Linux (#29239)
• Various fixes related to XDS (#29240, #29242, #29243, #29244, #29280)

Python

• Revert “Remove GRPC_ENABLE_FORK_SUPPORT from setup.py” (#29230)