v1.39.4 v1.40.0

Name: huba
Author: sergeyzwezdin

sergeyzwezdin/hubaOct 12, 2026 → Oct 13, 20261 day between releases

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Analyzing what changed between v1.39.4 and v1.40.0. This page updates automatically — usually within a minute.

The Two Releases

v1.39.4

Oct 12, 2026· 9 days ago

Patch release focusing on critical bug fixes and security updates, specifically addressing thread safety issues in routing configuration updates and correcting Prometheus histogram bucket indices.

Full release notes

v1.40.0

Oct 13, 2026· 8 days ago

Major release introducing HTTP/3 and QUIC as stable, migrating Bazel build system to bzlmod, bumping LLVM/Clang toolchain to 22, and adding post-quantum cryptography by default.

Full release notes