GoKawiilOracle Ships JDK 27 as Java's Latest General Availability Release
JDK 27, the reference implementation of Java 27, has reached General Availability after build 35 passed as the second release candidate with no critical bugs found. The release bundles nine JDK Enhancement Proposals, including G1 as the default garbage collector everywhere, post-quantum hybrid key exchange for TLS 1.3, compact object headers by default, and further previews of structured concurrency and pattern matching features. Oracle's GPL-licensed OpenJDK builds are already available for download, with other vendors expected to follow.
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Making G1 universal and enabling compact object headers by default signals Java's continued push toward better out-of-box performance without developer tuning. The inclusion of post-quantum cryptography for TLS shows the platform preparing early for a future where classical encryption may be broken, a meaningful step for enterprise security planning.
- JDK 27 is now generally available with build 35 as the final GA build
- Key changes include default G1 garbage collection, compact object headers, and post-quantum TLS key exchange
- Multiple preview features like structured concurrency and pattern matching continue maturing toward standardization
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Published there as: “Java 27 Released”
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