Project ZGC: Generational ZGC Early-Access Builds

These are early access binaries of Generational ZGC JDK-8272979

Warning: This build is based on an incomplete version of JDK 21.

Build 21-genzgc+5-33 (2023/3/9)

These early-access builds are provided under the GNU General Public License, version 2, with the Classpath Exception.

Linux / AArch64 tar.gz (sha256) 197637312
Linux / x64 tar.gz (sha256) 199295478
macOS / AArch64 tar.gz (sha256) 193580674
macOS / x64 tar.gz (sha256) 195948493
Windows / x64 zip (sha256) 197656230



Please send feedback via e-mail to To send e-mail to this address you must first subscribe to the mailing list.


International use restrictions

Due to limited intellectual property protection and enforcement in certain countries, the source code may only be distributed to an authorized list of countries. You will not be able to access the source code if you are downloading from a country that is not on this list. We are continuously reviewing this list for addition of other countries.