TL:DR
The deployment of the commons will have a window of time from which we can choose the exact date that will start the vesting period for hatchers tokens.
This vote goes along with the commons upgrade runoff, so be sure to participate on both.
Forum post: https://forum.tecommons.org/t/vote-to-select-the-start-date-of-the-vesting-period/799
Basically, there are 4 options: