Page History

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The release date follows the schedule of Oracle Critical Patch Updates as this is the date embargoed security fixes can be published.

OpenJDK 21.0.8

• Tuesday, July 15 2025 GA; OpenJDK 21.0.8 released (tag: jdk-21.0.8-ga)

OpenJDK 21.0.9

• Wednesday, May 28 2025: jdk21u-dev repo open (tag: 21.0.9+0)
• Tuesday, July 29 2025: First merge from jdk21u-dev to jdk21u (tag: 21.0.9+1)
• Tuesday, September 2 2025: Rampdown; last merge from jdk21u-dev to jdk21u
• Tuesday, September 30 2025: Last tag before code freeze
• Tuesday, October 21 2025 GA; OpenJDK 21.0.9 released (tag: jdk-21.0.9-ga)

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• Wednesday, September 3 2025: jdk21u-dev repo open (tag: 21.0.10+0)
• Tuesday, October 28 November 05 2025: First merge from jdk21u-dev to jdk21u (tag: 21.0.10+1)
• Tuesday, December 2 2025: Rampdown; last merge from jdk21u-dev to jdk21u
• Tuesday, December 30 2025: Last tag before code freeze
• Tuesday, January 20 2026 GA; OpenJDK 21.0.10 released (tag: jdk-21.0.10-ga)

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