[libcxx-dev] [11.0.0 Release] Release schedule

[Hans Wennborg via libcxx-dev]

Hello everyone,

Some folks have already asked for a rough schedule for LLVM 11, so I
think it's time to send this.

My proposal is to essentially follow the same procedure as last time,
which would mean:

- 15 July 2020: Create the release branch. RC1 ships soon after.

- 31 July 2020: RC2

- 26 August 2020: Final (we'll try not to slip).

Please let me know what you think.

Thanks,
Hans