Java 17 is a feature release which will obsolete Java 16 and became a long-term support (LTS) release of Java on its introduction on 14th September 2021.
Current status: Early Access
Page last updated: 2021-05-25, EA 23
Schedule:
- 2021-06-10 Rampdown Phase One (fork from main line)
- 2021-07-15 Rampdown Phase Two
- 2021-08-05 Initial Release Candidate
- 2021-08-19 Final Release Candidate
- 2021-09-14 General Availability
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Selected Changes Targeted to Java 17
- JEP 306: Restore Always-Strict Floating-Point Semantic
- JEP 356: Enhanced Pseudo-Random Number Generators
- JEP 382: New macOS Rendering Pipeline
- JEP 391: macOS/AArch64 Port
- JEP 398: Deprecate the Applet API for Removal
- JEP 403: Strongly Encapsulate JDK Internals
- JEP 406: Pattern Matching for switch (Preview)
- JEP 407: Remove RMI Activation
- JEP 409: Sealed Classes
- JEP 412: Foreign Function & Memory API (Incubator)
- JEP 414: Vector API (Second Incubator)
- JEP 411: Deprecate the Security Manager for Removal
- JDK-6323374: Collections.unmodifiable* methods are idempotent for their corresponding collection. The unmodifiable* methods in java.util.Collections will no longer re-wrap a given collection with an unmodifiable view if that collection has already been wrapped by same method. (our unit tests still pass)
- JDK-8235139: Deprecate the socket impl factory mechanism
- JDK-8259709: Disable SHA-1 XML Signatures. XML signatures that use SHA-1 based digest or signature algorithms have been disabled by default. (our unit tests still pass)
- JDK-8259801: Enable XML Signature secure validation mode by default
Proposed to Target Java 17
- JEP 306415: Restore Always-Strict Floating-Point Semantic
- JEP 406: Pattern Matching for switch (Preview)
- JEP 411: Deprecate the Security Manager for RemovalContext-Specific Deserialization Filters
Significant Changes from Java 11 (18.9 LTS)
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