"Java 26 includes 10 JEPs, five of which are still progressing through the preview and incubator stages. Five JEPs focus on improvements to the Java libraries including Prepare to Make Final Mean Final, HTTP/3 for the HTTP Client API, Lazy Constants (Second Preview), Structured Concurrency (Sixth Preview) and Vector API (Eleventh Incubator). The remaining JEPs focus on language innovation, performance and security."
"JEP 516, Ahead-of-Time Object Caching with Any GC, proposes to enhance JEP 483, Ahead-of-Time Class Loading & Linking, delivered in JDK 24, for improved startup and warmup time such that it can be used with any garbage collector, including the low-latency Z Garbage Collector (ZGC)."
"JEP 526, Lazy Constants (Second Preview), introduces the concept of computed constants, defined as immutable value holders that are initialized at most once. This offers the performance and safety benefits of fields, while offering greater flexibility as to the timing of initialization."
Java 26 is released as the first non-LTS version since JDK 25, featuring 10 JEPs with five in preview or incubator stages. Five JEPs focus on library improvements: Prepare to Make Final Mean Final, HTTP/3 for the HTTP Client API, Lazy Constants (Second Preview), Structured Concurrency (Sixth Preview), and Vector API (Eleventh Incubator). Additional JEPs address language innovation, performance, and security. Project Leyden contributes Ahead-of-Time Object Caching with Any GC, enhancing JDK 24's Ahead-of-Time Class Loading & Linking for improved startup and warmup times with any garbage collector, including ZGC. Lazy Constants introduces computed constants as immutable value holders initialized at most once, providing performance and safety benefits with flexible initialization timing.
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