The OP Mainnet upgrade to the Bedrock release will take place on June 6, 2023 at 16:00 UTC!
There will be 2-4 hours of downtime.
See here for additional details. (opens new window)
The Working Constitution (opens new window) outlines governing provisions and principles for the Collective. It will remain in effect no more than four years from the date of its adoption. After that, authority over governance will be ceded to a permanent Bedrock Constitution that incorporates the lessons of the Collective’s prior governance experiments.
The Collective’s Operating Manual (opens new window) describes current governance processes for the Token House. It will evolve, with the Collective, over time. The version linked here, from The Optimism Foundation's github repository (opens new window), is the authoritative one.