The GNU MCU Eclipse OpenOCD project is a fork of OpenOCD, customised for a better/more convenient integration with the GNU MCU OpenOCD Debugging plug-in.
Expect GNU MCU Eclipse OpenOCD to follow official OpenOCD releases, plus several intermediate releases, as needed.
After RISC-V support was upstreamed, GNU MCU Eclipse OpenOCD no longer tracks the changes from the RISC-V OpenOCD fork, since some of them interfered with other targets.
See the releases page. Binaries for most platforms can be downloaded from GitHub Releases.
Credit to Shields IO and Somsubhra/github-release-stats.