Java 17 General Availability began on September 14, 2021, and Java 18 is in development. For Java 11, long-term support will not be provided by Oracle for the public instead, the broader OpenJDK community, as Eclipse Adoptium or others, is expected to perform the work. Java 10 a previously supported rapid release version, had its support ended in September 2018 the same date support for Java 11 began. Java 8 LTS last free software public update for commercial use was released by Oracle in January 2019, while Oracle continues to release no-cost public Java 8 updates for development and personal use indefinitely.
Regarding Oracle Java SE Support Roadmap, version 17, 11 and 8 are the currently supported long-term support (LTS) versions, where Oracle Customers will receive Oracle Premier Support. Some programs allow conversion of Java programs from one version of the Java platform to an older one (for example Java 5.0 backported to 1.4) (see Java backporting tools). Entire new APIs, such as Swing and Java2D, have been introduced, and many of the original JDK 1.0 classes and methods have been deprecated. In addition to the language changes, other changes have been made to the Java Class Library over the years, which has grown from a few hundred classes in JDK 1.0 to over three thousand in J2SE 5. The language is specified by the Java Language Specification (JLS) changes to the JLS are managed under JSR 901. Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform. The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.
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