gRPC-Core Release 1.83.0

[Rishesh Agarwal]

This is 1.83.0 (garden) release announcement for gRPC-Core and the wrapped languages C++, C#, Objective-C, Python, PHP and Ruby. Latest release notes are here.

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

Core

• [Security] Default to Post-Quantum Cryptography in TLS key exchange. (#42560)
• [authz] don't pass RBAC policy by value when constructing authorization engine. (#42636)

C#

• Migrate CSharp Grpc.Tools to new DotNet Version. (#42661)
• [C#] Tools - Build: Fix protoc SIGSEGV on ARM64 by aligning max-page-size and migrating to manylinux_2_28. (#42590)

Python

• [Backport][v1.83.x][Python] grpc-status: Relax protobuf dependency lower bound to allow 6.x. (#43001)
• [Python] Add abort_with_status to the aio ServicerContext ABC. (#42733)
• [Python] Update lower bound for protobuf from 6.33.5 to 7.35.1. (#42914)
• [Python] Pyright typeCheckingMode - standard. (#42739)
• [Python] Support Python 3.15 - Upgrade bazel dep rules_python to 2.0.2. (#42637)
• [Python] Hide internal symbols from Python's cygrpc shared object. (#42325)
• [Python] Handle custom Interceptor exceptions in InterceptedCall APIs . (#42593)