Thread by @TurkeyJUG

Summary of #Java 8,9,10,11,12,13,14,15,16,17,18 features.
All features in a single post. #JDK #JRE #JavaAPI #Software

References: Oracle official website, Java doc and API specification doc.
docs.oracle.com/en/java/

#Java18 Features:
- UTF-8 by Default
- Simple Web Server
- Code Snippets in Java API Doc
- Reimplement Core Reflection with Method Handles
- Vector API
- Internet-Address Resolution SPI
- Foreign Function & Memory API
- Pattern Matching for switch

#Java17 Features (Long Term Support):
Restore Always-Strict Floating-Point Semantics
Enhanced Pseudo-Random Number Generators
New macOS Rendering Pipeline
macOS/AArch64 Port
Deprecate the Applet API for Removal
Strongly Encapsulate JDK Internals
Pattern Matching for switch

#Java16 Features:
- Vector API
- Enable C++14 Language Features
- Migrate from Mercurial to Git
- Migrate to GitHub
- Concurrent Thread-Stack Processing
- Unix-Domain Socket Channels
- Alpine Linux Port
- Elastic Metaspace
- Windows/AArch64 Port

#Java15 Features
- Sealed Classes and Interfaces
- EdDSA Algorithm
- Hidden Classes
- Pattern Matching for instanceof
- Removed Nashorn JavaScript Engine
- Reimplement the Legacy DatagramSocket API
- Records (Second Preview)
- Text Blocks become a standard feature

#Java14 Features
– Pattern Matching for instanceof
– Text Blocks
– Helpful NullPointerExceptions
– Records
– Switch Expressions
– Packaging Tool
– NUMA-Aware Memory Allocation for G1
– JFR Event Streaming
– Non-Volatile Mapped Byte Buffers
– Remove the Pack200 Tools and API

#Java13 Features:
– Text Blocks (Preview)
– Switch Expressions Enhancements (Preview)
– Reimplement the Legacy Socket API
– Dynamic CDS Archive
– ZGC: Uncommit Unused Memory
– FileSystems.newFileSystem() Method
– DOM and SAX Factories with Namespace Support

#Java12 Features:
- Collectors.teeing() in Stream API
- String API Changes
- Files.mismatch(Path, Path)
- Compact Number Formatting
- Support for Unicode 11
- Switch Expressions (Preview)

#Java11 Features (Long Term Support):
- HTTP Client API
- Launch Single-File Programs Without Compilation
- String API Changes
- Collection.toArray(IntFunction)
- Files.readString() and Files.writeString()
- Optional.isEmpty()

#Java10 Features:
- Local Variable Type Inference
- Time-Based Release Versioning
- Garbage-Collector Interface
- Parallel Full GC for G1
- Heap Allocation on Alternative Memory Devices
- Consolidate the JDK Forest into a Single Repository

#Java9 Features:
- Java platform module system
- Interface Private Methods
- HTTP 2 Client
- JShell
- Platform and JVM Logging
- Process API Updates
- Collection API Updates
- Improvements in Stream API
- Multi-release JAR Files
- @Deprecated Tag Changes
- Stack Walking

#Java8 Features (Long Term Support):
- Lambda expression
- Stream API
- Functional interface
- Default and static methods
- Optional class
- Nashorn – JavaScript runtime engine
- Unsigned Integer Arithmetic
- Repeating annotations
- New Date and Time API