• performance - Optimize startup time. See #4514.
• enhancement - Project manager should warn when two projects share the same groupId and artifactId. See #4491.
• enhancement - Upgrade the bundled JDK version to 25 LTS. See #4439, #4353.
• enhancement - Support Java 27. See JLS#3889.
• enhancement - Make decompiler cache size configurable via system property jdt.ls.decompiler.cacheSize. See JLS#3875.
• enhancement - Show a progress report on the client side when executing delegate commands. See JLS#1186.
• enhancement - Per-parameter signature help documentation. See JLS#1291.
• bug fix - JDT.LS fails to start with "Unrecognized VM option 'AllowArchivingWithJavaAgent'". See #4511.
• documentation - Fix typo in the wiki page https://github.com/redhat-developer/vscode-java/wiki/JDK-Requirements#java.configuration.runtimes. See #4509.
• bug fix - JDT LS re-initializes every ~20s and spawns a Gradle daemon each time. See #4501.
• bug fix - "Sort Member: Avoid Volatile Changes" sorts alphabetically. See #3990.
• bug fix - Allow parsing maps in JSONUtility. See JLS#3900.
• bug fix - Fix regression in handing {@index } Javadoc. See JLS#3878.
• bug fix - Fix overlapping edits in postfix completions. See JLS#3861.
• bug fix - Having a project with preview enabled but not set to the latest Java version silently fails to build. See JLS#3846.
• bug fix - JEP 511: Hovering over java.xml module import displays java.xml.crypto Javadoc. See JLS#3709.
• bug fix - Early log messages are not filtered. See JLS#3541.
• bug fix - Outgoing call hierarchies sometimes duplicate the results. See JLS#3193.
• bug fix - Incorrect Javadoc rendering when inline @ tokens appear in block tags. See JLS#3631.