The following sections cover planned breaking changes in the v38 release, expected in 2027 Q1. These describe changes as we anticipate them being implemented, but due to the flexible nature of software some of these changes may not land or may vary from how they are described in this topic. Changes in Bazel Dropping Bazel 8 Support This release will drop Bazel 8 as the minimum supported version and raise it to Bazel 9, as per the Foundational C++ Support Matrix.
Changes Announced on September 22, 2026
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January 1, 2001
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protocol-buffers