Find a way to avoid freeze of master for several days

Currently, for each milestone, final release, the master branch is frozen for several days which is decreasing productivity and increase risk at the end of code freeze (as everybody wants to merge a lot of PRs at the same time)

it would be nice to find a way to avoid the freeze on the master branch.

Proposal:

• create a branch for each milestone/release:
  • it allows to continue working on master
  • it allows to provide blocker/critical fix if needed on the branch