Inside Java
News and views from members of the Java team at Oracle
News and views from members of the Java team at Oracle
Since JavaOne 2025, JDK 25 was released, the latest version with long-term support. But Java never stands still; it's already time to ship JDK 26. This talk summarizes the most important changes between Java 21 and 25:
from unnamed patterns and flexible constructors to module imports
from the foreign-function and memory API to stream gatherers and the class-file API
from a simpler main to launching multisource-file programs
from Markdown in JavaDoc to quantum-resistant encryption
from faster launch times to improved garbage collection
... before taking a closer look at the newest release, including its preview features:
Primitive patterns and lazy constants
Updated structured concurrency
PEM encoding and HTTP/3 support
New command-line options to enable deep reflection
There are plenty of features in the language, API, and runtime to discuss; whether new, improved, or finalized. Let's go over them.
Make sure to check the JavaOne 2026 playlist.
