References 385% CONFIDENCEOverall confidence: 85%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]90%
  oracle.com/news/announcement/oracle-releases-java-27-and-strengthens-post-quantum-cryptography-support-2026-09-15

  oracle.com· Posted Sep 24, 2026· Starts Sep 15, 2026 ✓· 33% of score

  Datelined "Austin, Texas—Sep 15, 2026": "Oracle today announced the availability of Java 27"; oracle.com stamps it 14:30Z.

• [2]90%
  JDK 27

  openjdk.org· Added Sep 24, 2026· 33% of score

  OpenJDK^[3] schedule: General Availability 2026/09/15; the nine JEPs.

• [3]75%
  JDK 28

  openjdk.org· Added Sep 24, 2026· 33% of score

  JDK 28 is open with JEPs targeted so far including JEP 401 Value Objects (Preview) and a proposed JEP 544 Ahead-of-Time Code Compilation.^[1]

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