Java™ SE Development Kit 8, Update 501 Enterprise Performance Pack (JDK 8u501-PERF)

Release date: July 21, 2026

The full version string for this update release is 1.8.0_501-perf-b8 (where "b" means "build"). The version number is 1.8.0_501-perf.

 

IANA TZ Data 2026b

JDK 8u501 contains IANA time zone data 2026b which contains the following changes since the previous update.

• British Columbia last daylight saving time change was 2026-03-08 spring forward.

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

 

Security Baselines

The security baselines for the Java Runtime at the time of the release of JDK 8u491 are specified in the following table:

 

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 8u501) be used after the next Critical Security Patch Update scheduled for August 18, 2026. Oracle is transitioning to more frequent security updates, see the recently published blog for more information.

Java Management Service, available to all users, can help you find vulnerable Java versions in your systems. Java SE Subscribers and customers running in Oracle Cloud can use Java Management Service to update Java Runtimes and to do further security reviews like identifying potentially vulnerable third party libraries used by your Java programs. Existing Java Management Service user click here to log in to your dashboard. The Java Management Service Documentation provides a list of features available to everyone and those available only to customers. Learn more about using Java Management Service to monitor and secure your Java Installations.

For systems unable to reach the Oracle Servers, a secondary mechanism expires this JRE (version 8u501) on 2026-11-20. After either condition is met (new release becoming available or expiration date reached), the JRE will provide additional warnings and reminders to users to update to the newer version. For more information, see 23.1.2 JRE Expiration Date in the Java Platform, Standard Edition Deployment Guide.

 

Changes in Java SE 8u501-Perf

Bug Fixes

JDK 8u501 Enterprise Performance Pack includes the following fixes from JDK 17:

#	BugId	Component	Summary
1	JDK-8282044	hotspot/compiler	[JVMCI] Export _sha3_implCompress, _md5_implCompress and aarch64::_has_negatives stubs to JVMCI compiler.
2	JDK-8281146	hotspot/compiler	Replace StringCoding.hasNegatives with countPositives
3	JDK-8318509	hotspot/compiler	x86 count_positives intrinsic broken for -XX:AVX3Threshold=0
4	JDK-8324345	hotspot/compiler	Stack overflow during C2 compilation when splitting memory phi
5	JDK-8373894	hotspot/gc	G1: Count evacuation-failed garbage collections in gc cpu usage
6	JDK-8341427	hotspot/jfr	JFR: Adjust object sampler span handling
7	JDK-8364190	hotspot/jfr	JFR: RemoteRecordingStream withers don't work
8	JDK-8382242	hotspot/jfr	JFR: Metadata reconstruction invalidates ConstantMap for java.lang.String
9	JDK-8368670	hotspot/jfr	Deadlock in JFR on event register + class load
10	JDK-8368551	hotspot/runtime	Core dump warning may be confusing
11	JDK-8365526	hotspot/runtime	Crash with null Symbol passed to SystemDictionary::resolve_or_null
12	JDK-8338883	hotspot/runtime	Show warning when CreateCoredumpOnCrash set, but core dump will not happen