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JFR redaction

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Nov 13, 2026 · Backend Development

Java 27 Released: G1 Default GC, Post-Quantum TLS, Compact Object Headers & JFR Redaction

Java 27 introduces nine JEPs including making G1 the universal default garbage collector, adding post-quantum hybrid key exchange for TLS 1.3, enabling compact object headers by default, and redacting sensitive data in JFR recordings, plus performance gains in HashMap.putAll and AVX2 binary search.

G1 garbage collectorJFR redactionJava 27

0 likes · 15 min read

Java 27 Released: G1 Default GC, Post-Quantum TLS, Compact Object Headers & JFR Redaction

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Sep 17, 2026 · Backend Development

Java 27 Released: G1 Default GC, Compact Object Headers, Post-Quantum TLS, JFR Redaction

Java 27 introduces four final features: G1 becomes the universal default garbage collector, compact object headers reduce memory overhead by 4 bytes per object, TLS 1.3 adds post-quantum hybrid key exchange by default, and JFR automatically redacts sensitive data like passwords and tokens before recording.

G1 GCJFR redactionJava 27

0 likes · 18 min read

Java 27 Released: G1 Default GC, Compact Object Headers, Post-Quantum TLS, JFR Redaction