Microsoft, Azul, and other community members are collaborating to port OpenJDK to MacOS and Windows on the AArch64 chipset. This work coincides with the upcoming availability of ARM-based Macs and aims to have a supported OpenJDK build in approximate alignment to market availability and adoption of the new chip.

“Azul is building an Aarch64 port for MacOS, has drafted a JEP for the work, will do the work in the open as much as possible (limited by Apple’s developer kit early access rules), and will contribute the complete work upstream to be included in e.g. OpenJDK 16 or 17. Once we land this upstream, we also intend to build OpenJDK 11 and 8 variants and make sure developers and users have free binary OpenJDK distros available that will work on ARM-based Mac,” explains Gil Tene, CTO of Azul, which maintains the freely available Zulu build of OpenJDK across many platforms.

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