Java 15 officially included the Java text blocks feature, while improvements continued to be made to the ZGC and Shenandoah garbage collectors.

370: Incubator for the Foreign-Memory Access API.

368: A second preview of Java Text Blocks feature.

366: Deprecation of the combination of the SerialOld and ParallelScavenge GC algorithms.

365: ZGC for Windows garbage collection and memory management.

364: ZGC for macOS garbage collection and memory management.

363: Removal of Java’s Concurrent Mark Sweep (CMS) garbage collector.

362: Deprecation of Solaris SPARC Ports.

361: Standard inclusion for switch expressions.

359: A preview of the new Java data type named Records.

358: Helpful NullPointerException guidance.

349: Java Flight Recorder event streaming for Java Mission Control.

345: NUMA awareness for the G1 garbage collector.

343: Incubator for the new packaging tool.

305: instanceof pattern matching preview.

The last time a new Java type was introduced into the language was the Enum in Java 5.Įvent streaming to provide real time monitoring with the Java Flight Recorder, along with ZGC enhancements to improve garbage collection are other noteworthy enhancements included in this release. Java 14 was noteworthy for it’s preview introduction of Records as a new Java type. There are many reasons why the JDK 17 LTS release should generate excitement in the Java community.

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