Preliminary release schedule for 1.73.0

From: Marshall Clow (mclow.lists_at_[hidden])
Date: 2020-03-22 21:51:09

We missed the start of the release cycle for 1.73.0.
Bad release managers. No biscuit.

Here's my preliminary schedule for the 1.73.0 release:

25-Mar  Boost 1.73.0 closed for new libraries and breaking changes
1-Apr     Boost 1.73.0 closed for major changes
8-Apr     Boost 1.73.0 closed for beta
ASAP    Boost 1.73.0 beta
22-Apr   Boost 1.73.0 closed for release
ASAP    Boost 1.73.0 release

"ASAP", in this list, means "As soon as possible after the preceding
milestone"

Please let me know if you see any problems with this.

-- Marshall