Is version 2.3 of GoodData CN going to be released tomorrow with support for GoodData UI 8.12?

Hi Sheldon, the GoodData.CN 2.3.0 release will indeed support GoodData UI 8.12. The release notes should be published later today on https://support.gooddata.com/hc/en-us/sections/1500000704441-Release-Notes. So stay tuned!