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This topic is about Java 14 – Deprecation & Removals.

Deprecations

• Solaris and SPARC Ports (JEP 362) − because this Unix operating system and RISC processor are not in active development since the past few years.
• ParallelScavenge + SerialOld GC Combination (JEP 366) − since this is a rarely used combination of GC algorithms, and requires significant maintenance effort

Removals

• Concurrent Mark Sweep (CMS) Garbage Collector (JEP 363) − This GC was deprecated in Java 9 and is replaced with G1 as default GC. There are other high performant alternatives as well like ZDC, Shenandoah. This GC was kept for 2 years for interested users to maintain. As there is no active maintenance, this GC is now completed removed from Java 14.
• Pack200 Tools and API (JEP 367) − These compression libraries were introduced in Java 5 and were deprecated in Java 11. Now these libraries are completely removed from Java 14.

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