JEP Tracker
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Diligently tracking and posting any @openjdk.org JEP updates.
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Built by @hardcoding.fr on https://github.com/PerfectSlayer/openjdk-jep-bsky. Feedback welcome!
✏️ JEP 8377081 was drafted
Title: Argon2 Password Hashing Algorithms
Type: feature
Component: security
Release: 27
See openjdk.org/jeps/8377081
Title: Argon2 Password Hashing Algorithms
Type: feature
Component: security
Release: 27
See openjdk.org/jeps/8377081
February 3, 2026 at 4:25 PM
✏️ JEP 8377081 was drafted
Title: Argon2 Password Hashing Algorithms
Type: feature
Component: security
Release: 27
See openjdk.org/jeps/8377081
Title: Argon2 Password Hashing Algorithms
Type: feature
Component: security
Release: 27
See openjdk.org/jeps/8377081
✏️ JEP 8361105 was drafted
Title: Code reflection (Incubator)
Type: feature
Component: core
See openjdk.org/jeps/8361105
Title: Code reflection (Incubator)
Type: feature
Component: core
See openjdk.org/jeps/8361105
January 28, 2026 at 10:23 PM
✏️ JEP 8361105 was drafted
Title: Code reflection (Incubator)
Type: feature
Component: core
See openjdk.org/jeps/8361105
Title: Code reflection (Incubator)
Type: feature
Component: core
See openjdk.org/jeps/8361105
✏️ JEP 8376595 was drafted
Title: Lazy Constants (Third Preview)
Type: feature
Component: core / lang
Release: 27
See openjdk.org/jeps/8376595
Title: Lazy Constants (Third Preview)
Type: feature
Component: core / lang
Release: 27
See openjdk.org/jeps/8376595
January 28, 2026 at 7:23 PM
✏️ JEP 8376595 was drafted
Title: Lazy Constants (Third Preview)
Type: feature
Component: core / lang
Release: 27
See openjdk.org/jeps/8376595
Title: Lazy Constants (Third Preview)
Type: feature
Component: core / lang
Release: 27
See openjdk.org/jeps/8376595
📦 JEP 522 delivered to JDK 26
Title: G1 GC: Improve Throughput by Reducing Synchronization
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/522
Title: G1 GC: Improve Throughput by Reducing Synchronization
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/522
January 21, 2026 at 9:25 PM
📦 JEP 522 delivered to JDK 26
Title: G1 GC: Improve Throughput by Reducing Synchronization
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/522
Title: G1 GC: Improve Throughput by Reducing Synchronization
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/522
📦 JEP 500 delivered to JDK 26
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
January 21, 2026 at 7:25 PM
📦 JEP 500 delivered to JDK 26
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
🏗️ JEP 527 integrated to JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
January 21, 2026 at 5:25 PM
🏗️ JEP 527 integrated to JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
📦 JEP 517 delivered to JDK 26
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
January 21, 2026 at 11:25 AM
📦 JEP 517 delivered to JDK 26
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
📦 JEP 504 delivered to JDK 26
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
January 21, 2026 at 7:25 AM
📦 JEP 504 delivered to JDK 26
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
📦 JEP 525 delivered to JDK 26
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
January 21, 2026 at 7:25 AM
📦 JEP 525 delivered to JDK 26
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
🎯 JEP 527 updated to target JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
January 20, 2026 at 2:25 PM
🎯 JEP 527 updated to target JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
📦 JEP 524 delivered to JDK 26
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
January 12, 2026 at 10:25 PM
📦 JEP 524 delivered to JDK 26
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
🎯 JEP 527 proposed to target JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
January 6, 2026 at 11:23 PM
🎯 JEP 527 proposed to target JDK 27
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
Title: Post-Quantum Hybrid Key Exchange for TLS 1.3
Type: feature
Component: security / javax.net.ssl
Release: 27
See openjdk.org/jeps/527
📦 JEP 529 delivered to JDK 26
Title: Vector API (Eleventh Incubator)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/529
Title: Vector API (Eleventh Incubator)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/529
December 19, 2025 at 6:55 PM
📦 JEP 529 delivered to JDK 26
Title: Vector API (Eleventh Incubator)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/529
Title: Vector API (Eleventh Incubator)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/529
📦 JEP 526 delivered to JDK 26
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
December 19, 2025 at 7:55 AM
📦 JEP 526 delivered to JDK 26
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
📦 JEP 530 delivered to JDK 26
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
December 18, 2025 at 3:55 PM
📦 JEP 530 delivered to JDK 26
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
📦 JEP 516 delivered to JDK 26
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
December 17, 2025 at 3:55 PM
📦 JEP 516 delivered to JDK 26
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
✅ JEP 500 is now complete
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
December 15, 2025 at 4:55 PM
✅ JEP 500 is now complete
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
Title: Prepare to Make Final Mean Final
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/500
✅ JEP 524 is now complete
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
December 8, 2025 at 11:55 PM
✅ JEP 524 is now complete
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
Title: PEM Encodings of Cryptographic Objects (Second Preview)
Type: feature
Component: security / security
Release: 26
See openjdk.org/jeps/524
✅ JEP 517 is now complete
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
December 8, 2025 at 7:55 PM
✅ JEP 517 is now complete
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
Title: HTTP/3 for the HTTP Client API
Type: feature
Component: core / net
Release: 26
See openjdk.org/jeps/517
✅ JEP 530 is now complete
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
December 3, 2025 at 12:55 AM
✅ JEP 530 is now complete
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
✅ JEP 516 is now complete
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
November 21, 2025 at 1:39 PM
✅ JEP 516 is now complete
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
Title: Ahead-of-Time Object Caching with Any GC
Type: feature
Component: hotspot / gc
Release: 26
See openjdk.org/jeps/516
✅ JEP 526 is now complete
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
November 21, 2025 at 10:39 AM
✅ JEP 526 is now complete
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
Title: Lazy Constants (Second Preview)
Type: feature
Component: core / lang
Release: 26
See openjdk.org/jeps/526
✅ JEP 504 is now complete
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
November 19, 2025 at 7:39 PM
✅ JEP 504 is now complete
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
Title: Remove the Applet API
Type: feature
Component: client / awt
Release: 26
See openjdk.org/jeps/504
🏗️ JEP 530 integrated to JDK 26
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
November 19, 2025 at 9:39 AM
🏗️ JEP 530 integrated to JDK 26
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
Title: Primitive Types in Patterns, instanceof, and switch (Fourth Preview)
Type: feature
Component: spec / lang
Release: 26
See openjdk.org/jeps/530
✅ JEP 525 is now complete
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
November 19, 2025 at 8:39 AM
✅ JEP 525 is now complete
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525
Title: Structured Concurrency (Sixth Preview)
Type: feature
Component: core
Release: 26
See openjdk.org/jeps/525