In case of update, which branch should I checkout for building?
For example now there are 2 branches: origin/v2.2.0.0 and v2.2.0.0 and respectively origin/v2.3.1.0 and v2.3.1.0
For example now there are 2 branches: origin/v2.2.0.0 and v2.2.0.0 and respectively origin/v2.3.1.0 and v2.3.1.0
Basically, it's the same branches. And i think, you should just checkout master to avoid such questions
