21.07.0.0
21.07.0.0
Release date: July 30, 2021
This CPU and PSU release is based on the following OpenJDK versions:
| Major Version | OpenJDK Version |
|---|---|
7 |
7u312 |
8 |
8u302 |
11 |
11.0.12+7 |
13 |
13.0.8+5 |
15 |
15.0.4+5 |
What’s New
-
Incorporates all of the changes from the July 2021 CPU release and most of the changes from the July 2021 PSU release.
-
Various performance improvements including improved locking, stack-walking behavior for performance.
-
Loop unrolling improvements.
-
Java heap elasticity is turned on by default when not using the Prime System Tools (ZST). This means that
-Xmsis now recognized along with-Xmx. The default values also match OpenJDK. For latency sensitive applications it is advised to set-Xmsequal to-Xmxto preserve the old behaviour. See Recommended Heap Size for more details.