OpenJDK News Roundup: Vector API, Compact Object Headers and G1GC as Default in JDK 27 (opens in new tab)

There was a flurry of activity in the OpenJDK ecosystem during the week of May 18th, 2026, highlighting three JEPs elevated from Proposed to Target to Targeted and three JEPs elevated from Candidate to Proposed to Target for JDK 27. The proposed release schedule has also been finalized.