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JDK 15.0.2 Release Notes

Java Development Kit 15 Release Notes

Java™ SE Development Kit 15.0.2 (JDK 15.0.2)

January 19, 2021

The full version string for this update release is 15.0.2+7 (where "+" means "build"). The version number is 15.0.2.

IANA Data 2020d

JDK 15.0.2 contains IANA time zone data version 2020d. For more information, refer to Timezone Data Versions in the JRE Software.

Security Baselines

The security baselines for the Java Runtime Environment (JRE) at the time of the release of JDK 15.0.2 are specified in the following table:

JRE Family Version JRE Security Baseline (Full Version String)
15 15.0.2+7
11 11.0.10+8
8 1.8.0_281-b09
7 1.7.0_291-b09

Keeping the JDK up to Date

Oracle recommends that the JDK is updated with each Critical Patch Update (CPU). 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 15.0.2) be used after the next critical patch update scheduled for April 20, 2021.

Other notes

 JDK time-zone data upgraded to tzdata2020d

The JDK update incorporates tzdata2020d. The main change is

  • Palestine ends DST earlier than predicted, on 2020-10-24.

Please refer to for more information.

See JDK-8255226

 JDK time-zone data upgraded to tzdata2020c

The JDK update incorporates tzdata2020c. The main change is

  • Fiji starts DST later than usual, on 2020-12-20.

Please refer to for more information.

See JDK-8254982

 US/Pacific-New Zone Name Removed as Part of tzdata2020b

Following the JDK's update to tzdata2020b, the long-obsolete files named pacificnew and systemv have been removed. As a result, the "US/Pacific-New" Zone name declared in the pacificnew data file is no longer available for use.

Information regarding this update can be viewed at

See JDK-8254177

Bug Fixes

This release also contains fixes for security vulnerabilities described in the Oracle Critical Patch Update. For a more complete list of the bug fixes included in this release, see the JDK 15.0.2 Bug Fixes page.