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Enterprise Performance Pack Release Notes
Java™ SE Development Kit 8, Update 461 Enterprise Performance Pack (JDK 8u461-PERF)
Release date: July 15, 2025
The full version string for this update release is 1.8.0_461-perf-b12 (where "b" means "build"). The version number is 1.8.0_461-perf.
IANA TZ Data 2025b
JDK 8u461 contains IANA time zone data 2025b which contains the following changes since the previous update.
- New zone for Aysén Region in Chile which moves from -04/-03 to -03.
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 8u461 are specified in the following table:
| Java Family Version | Security Baseline (Full Version String) |
|---|---|
| 8 | 1.8.0_461-perf-b12 |
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 8u461) be used after the next critical patch update scheduled for October 21, 2025.
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 8u461) on 2025-11-21. 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.
Removed Features
The following root certificates, which are terminated and no longer in use, have been removed from the `cacerts` keystore:
+ alias name "camerfirmachamberscommerceca [jdk]"
Distinguished Name: CN=Chambers of Commerce Root, OU=https://www.chambersign.org, O=AC Camerfirma SA CIF A82743287, C=EU
+ alias name "camerfirmachambersignca [jdk]"
Distinguished Name: CN=Global Chambersign Root - 2008, O=AC Camerfirma S.A., SERIALNUMBER=A82743287, L=Madrid (see current address at www.camerfirma.com/address), C=EU
The following expired root certificate has been removed from the `cacerts` keystore:
+ alias name "baltimorecybertrustca [jdk]"
Distinguished Name: CN=Baltimore CyberTrust Root, OU=CyberTrust, O=Baltimore, C=IE
Other Notes
The oracle.com JDK RPM packages meant to be downloaded directly to the target system, now are signed with the OL9 signing key instead of the OL8 signing key. The RPM packages hosted on YUM repositories remain signed with the appropriate key for the target repository.
Changes in Java SE 8u461-Perf
Bug Fixes
JDK 8u461 Enterprise Performance Pack includes the following fixes from JDK 17:| # | BugId | Component | Summary |
|---|---|---|---|
| 1 | JDK-8345296 | hotspot/compiler | AArch64: VM crashes with SIGILL when prctl is disallowed |
| 2 | JDK-8339148 | hotspot/runtime | Make os::Linux::active_processor_count() public |
| 3 | JDK-8300645 | hotspot/runtime | Handle julong values in logging of GET_CONTAINER_INFO macros |
| 4 | JDK-8300658 | hotspot/runtime | memory_and_swap_limit() reporting wrong values on systems with swapaccount=0 |