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gRPC

v1.84.2Networking & Messaging
Oct 30, 2026

CHECK 1OTHER 5

A maintenance release with a denial-of-service fix for `Health Watch RPC`, alongside Python memory-leak fixes and authority-handling corrections. It also enables the host-mapping experiment by default.

Check if affected (1)

  • securityHealth Watch RPC denial-of-service fix

    Applies if you use Health Watch RPC.

    The denial-of-service defect in Health Watch RPC is fixed in this release.

    grpc#43784

All 5 other recorded changesvalue changes 3 · additions 1 · fixes 1

value changes (3)

  • - #43509 Make xDS routing and RBAC resolve the request authority consistently
  • - #43675 host/:authority handling in the HPACK parser
  • enable map_host_header_to_authority

additions (1)

  • - #43561 ([experiments] Add map_host_header_to_authority experiment) and its test-tags follow-up, since v1.84.x does not have the experiment yet

fixes (1)

  • - Fixes Memory leak in AsyncIO client-streaming calls with interceptors ([#43784](https://github.com/grpc/grpc/pull/43784))
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