RELEASE NOTES: JDK 21.0.12.1

Notes generated: Tue Sep 01 05:55:24 CEST 2026

JEPs

None.

RELEASE NOTES

None.

FIXED ISSUES

infrastructure

Priority Bug Summary
P4 JDK-8388789 Bump update version for OpenJDK: jdk-21.0.12.1

infrastructure/build

Priority Bug Summary
P2 JDK-8333743 Change .jcheck/conf branches property to match valid branches

infrastructure/release_eng

Priority Bug Summary
P4 JDK-8389946 [21u] Remove designator DEFAULT_PROMOTED_VERSION_PRE=ea for release 21.0.12.1