> I want to upgrade from 2.x to 3.x.
> I can definitely use the features in 3.11.1 but it's not a must.
> So my question is, is 3.11.1 stable and suitable for Production compared
> to 3.0.15?
Use 3.11.1 and don't use any 3.0.x or 3.x features.
3.11.1 is effectively three sequential patch releases, and the tick-tock
releases offered a number of superior fixes and performance improvements
over what was done in 3.0.x.
Introduce the use of new features later on, one at a time, after thorough
testing and staging.