Page History

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OpenJDK 21 updates will be delivered on the same established quarterly cycle used by Oracle i.e. "the third Tuesday closest to the 17th day of January, April, July and October."

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• Wednesday, September 3 2025: jdk21u-dev repo open (tag: 21.0.10+0)
• Tuesday, October 28 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)

OpenJDK 21.0.11

• Wednesday, December 3 2025: jdk21u-dev repo open (tag: 21.0.11+0)
• Tuesday, February 3 2026: First merge from jdk21u-dev to jdk21u (tag: 21.0.11+1)
• Tuesday, March 3 2026: Rampdown: last merge from jdk21u-dev to jdk21u
• Tuesday, March 31 2026: Last tag before code freeze
• Tuesday, April 21 2026 GA; OpenJDK 21.0.11 released (tag: jdk-21.0.11-ga)

OpenJDK 21.0.12

• Wednesday, March 4 2026: jdk21u-dev repo open (tag: 21.0.12+0)

Latest Release

Latest GA release:21.0.78

• 21.0.78+6 9 (GA), April July 15th 2025, [Release] [Tag] [Binaries]

Older releases can be found in the archive.

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Critical Fix Requests

[Unapproved requests]

Filters for Release 21.0.

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8

Changes new in 21.0.7 8 excluding test changes: Differences to OpenJDK 21.0.67.

21.0.78/all: OpenJDK but not OracleJDK: Changes in OpenJDK 21.0.7 8 that are not in OracleJDK 21.0.78.

21.0.78/all: OracleJDK but not OpenJDK: Changes backported to OracleJDK 21.0.3-21.0.7 8 but not in OpenJDK 21.0.78.

21.0.78/new: OracleJDK but not OpenJDK: Changes new in OracleJDK 21.0.7 8 but not in OpenJDK 21.0.78

Filters for Release 21.0.

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9

Changes new in 21.0.8 9 excluding test changes: Differences to OpenJDK 21.0.78.

21.0.89/all: OpenJDK but not OracleJDK: Changes in OpenJDK 21.0.8 9 that are not in OracleJDK 21.0.89.

21.0.89/all: OracleJDK but not OpenJDK: Changes backported to OracleJDK 21.0.3-21.0.8 9 but not in OpenJDK 21.0.89.

21.0.89/new: OracleJDK but not OpenJDK: Changes new in OracleJDK 21.0.8 9 but not in OpenJDK 21.0.89

Filters for Release 21.0.

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10

Changes new in 21.0.9 10 excluding test changes tbd: Differences to OpenJDK 21.0.89.

21.0.910/all: OpenJDK but not OracleJDK: Changes in OpenJDK 21.0.9 10 that are not in OracleJDK 21.0.910.

21.0.910/all: OracleJDK but not OpenJDK: Changes backported to OracleJDK 21.0.3-21.0.9 10 but not in OpenJDK 21.0.910.

21.0.910/new: OracleJDK but not OpenJDK: Changes new in OracleJDK 21.0.9 10 but not in OpenJDK 21.0.910

Common jdk21u JBS labels

The above filters exclude issues that are marked with the following labels:

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