JDK Patch 18.0.2.1 Release Notes

Java Development Kit 18 Release Notes

Java™ SE Development Kit 18, Patch 18.0.2.1 (JDK 18.0.2.1)

August 18, 2022

The full version string for this update release is 18.0.2.1+1 (where "+" means "build"). The version number is 18.0.2.1.

 

IANA TZ Data 2022a

For more information, refer to Timezone Data Versions in the JRE Software.

 

Security Baselines

The security baselines are unchanged from the release of JDK 18.0.2.

JRE Family Version JRE Security Baseline (Full Version String)
18 18.0.2+9
17 17.0.4+11
11 11.0.16+11
8 8u341-b10
7 7u351-b07

Keeping the JDK up to Date

Oracle recommends that the JDK is updated with each Critical Patch Update. In order to determine if a release is the latest, the Security Baseline page can be used to determine which is the latest version for each release family.

Critical patch updates, which contain security vulnerability fixes, are announced one year in advance on Critical Patch Updates, Security Alerts and Bulletins. It is not recommended that this JDK (version 18.0.2.1) be used after the next critical patch update scheduled for October 18, 2022.

Oracle recommends that all JDK 18 users, even those that have already updated to 18.0.2, uptake the 18.0.2.1 patch release.

 

Changes

hotspot/compiler
➜ C2 Compilation Errors Unpredictably Crashes JVM

Fixes a regression in the C2 JIT compiler which caused the Java Runtime to crash unpredictably.