on Docker hub: https://hub.docker.com/r/octobus/heptapod/tags?page=1&name=0.13 Here's the changelog: https://foss.heptapod.net/heptapod/heptapod/blob/heptapod-0.13.0rc1/HEPTAPOD_CHANGELOG.md
and here's the official announcement, also shedding light on what's going to happen in the #heptapod 0.13.x series. It's much more than just wikis! https://heptapod.net/heptapod-0.13.0rc1.html#heptapod-0.13.0rc1
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