Java New Features after Java 9.
Java 21 has 15 JEPs, see the table below.
| Number | Name |
|---|---|
| 430 | String Templates (Preview) |
| 431 | Sequenced Collections |
| 439 | Generational ZGC |
| 440 | Record Patterns |
| 441 | Pattern Matching for switch |
| 442 | Foreign Function & Memory API (Third Preview) |
| 443 | Unnamed Patterns and Variables (Preview) |
| 444 | Virtual Threads |
| 445 | Unnamed Classes and Instance Main Methods (Preview) |
| 446 | Scoped Values (Preview) |
| 448 | Vector API (Sixth Incubator) |
| 449 | Deprecate the Windows 32-bit x86 Port for Removal |
| 451 | Prepare to Disallow the Dynamic Loading of Agents |
| 452 | Key Encapsulation Mechanism API |
| 453 | Structured Concurrency (Preview) |
Java 20 has 7 JEPs, see the table below.
| Number | Name |
|---|---|
| 429 | Scoped Values (Incubator) |
| 432 | Record Patterns (Second Preview) |
| 433 | Pattern Matching for switch (Fourth Preview) |
| 434 | Foreign Function & Memory API (Second Preview) |
| 436 | Virtual Threads (Second Preview) |
| 437 | Structured Concurrency (Second Incubator) |
| 438 | Vector API (Fifth Incubator) |
Java 19 has 7 JEPs, see the table below.
| Number | Name |
|---|---|
| 405 | Record Patterns (Preview) |
| 422 | Linux/RISC-V Port |
| 424 | Foreign Function & Memory API (Preview) |
| 425 | Virtual Threads (Preview) |
| 426 | Vector API (Fourth Incubator) |
| 427 | Pattern Matching for switch (Third Preview) |
| 428 | Structured Concurrency (Incubator) |
Java 18 has 9 JEPs, see the table below.
| Number | Name |
|---|---|
| 400 | UTF-8 by Default |
| 408 | Simple Web Server |
| 413 | Code Snippets in Java API Documentation |
| 416 | Reimplement Core Reflection with Method Handles |
| 417 | Vector API (Third Incubator) |
| 418 | Internet-Address Resolution SPI |
| 419 | Foreign Function & Memory API (Second Incubator) |
| 420 | Pattern Matching for switch (Second Preview) |
| 421 | Deprecate Finalization for Removal |
Java 17 has 14 JEPs, see the table below.
| Number | Name |
|---|---|
| 306 | Restore Always-Strict Floating-Point Semantics |
| 356 | Enhanced Pseudo-Random Number Generators |
| 382 | New macOS Rendering Pipeline |
| 391 | macOS/AArch64 Port |
| 398 | Deprecate the Applet API for Removal |
| 403 | Strongly Encapsulate JDK Internals |
| 406 | Pattern Matching for switch (Preview) |
| 407 | Remove RMI Activation |
| 409 | Sealed Classes |
| 410 | Remove the Experimental AOT and JIT Compiler |
| 411 | Deprecate the Security Manager for Removal |
| 412 | Foreign Function & Memory API (Incubator) |
| 414 | Vector API (Second Incubator) |
| 415 | Context-Specific Deserialization Filters |
Java 16 has 17 JEPs, see the table below.
| Number | Name |
|---|---|
| 338 | Vector API (Incubator) |
| 347 | Enable C++14 Language Features |
| 357 | Migrate from Mercurial to Git |
| 369 | Migrate to GitHub |
| 376 | ZGC: Concurrent Thread-Stack Processing |
| 380 | Unix-Domain Socket Channels |
| 386 | Alpine Linux Port |
| 387 | Elastic Metaspace |
| 388 | Windows/AArch64 Port |
| 389 | Foreign Linker API (Incubator) |
| 390 | Warnings for Value-Based Classes |
| 392 | Packaging Tool |
| 393 | Foreign-Memory Access API (Third Incubator) |
| 394 | Pattern Matching for instanceof |
| 395 | Records |
| 396 | Strongly Encapsulate JDK Internals by Default |
| 397 | Sealed Classes (Second Preview) |
Java 15 has 14 JEPs, see the table below.
| Number | Name |
|---|---|
| 339 | Edwards-Curve Digital Signature Algorithm (EdDSA) |
| 360 | Sealed Classes (Preview) |
| 371 | Hidden Classes |
| 372 | Remove the Nashorn JavaScript Engine |
| 373 | Reimplement the Legacy DatagramSocket API |
| 374 | Disable and Deprecate Biased Locking |
| 375 | Pattern Matching for instanceof (Second Preview) |
| 377 | ZGC: A Scalable Low-Latency Garbage Collector |
| 378 | Text Blocks |
| 379 | Shenandoah: A Low-Pause-Time Garbage Collector |
| 381 | Remove the Solaris and SPARC Ports |
| 383 | Foreign-Memory Access API (Second Incubator) |
| 384 | Records (Second Preview) |
| 385 | Deprecate RMI Activation for Removal |
Java 14 has 16 JEPs, see the table below.
| Number | Name |
|---|---|
| 305 | Pattern Matching for instanceof (Preview) |
| 343 | Packaging Tool (Incubator) |
| 345 | NUMA-Aware Memory Allocation for G1 |
| 349 | JFR Event Streaming |
| 352 | Non-Volatile Mapped Byte Buffers |
| 358 | Helpful NullPointerExceptions |
| 359 | Records (Preview) |
| 361 | Switch Expressions (Standard) |
| 362 | Deprecate the Solaris and SPARC Ports |
| 363 | Remove the Concurrent Mark Sweep (CMS) Garbage Collector |
| 364 | ZGC on macOS |
| 365 | ZGC on Windows |
| 366 | Deprecate the ParallelScavenge + SerialOld GC Combination |
| 367 | Remove the Pack200 Tools and API |
| 368 | Text Blocks (Second Preview) |
| 370 | Foreign-Memory Access API (Incubator) |
Java 13 has 5 JEPs, see the table below.
| Number | Name |
|---|---|
| 350 | Dynamic CDS Archives |
| 351 | ZGC: Uncommit Unused Memory |
| 353 | Reimplement the Legacy Socket API |
| 354 | Switch Expressions (Preview) |
| 355 | Text Blocks (Preview) |
Java 12 has 8 JEPs, see the table below.
| Number | Name |
|---|---|
| 189 | Shenandoah: A Low-Pause-Time Garbage Collector (Experimental) |
| 230 | Microbenchmark Suite |
| 325 | Switch Expressions (Preview) |
| 334 | JVM Constants API |
| 340 | One AArch64 Port, Not Two |
| 341 | Default CDS Archives |
| 344 | Abortable Mixed Collections for G1 |
| 346 | Promptly Return Unused Committed Memory from G1 |