Horizon Mandatory Rollover Dates?

When will we be getting firm dates when the cutoffs will be for Horizon 360 and Horizon Rules and what will that notification look like?

• When will existing orgs have their 360s automatically moved to the Horizon versions?
• When will Rules Engine no longer support adding new bionic rules
• When will existing rules be migrated or be made unavailable?

@anirbandutta @community-admin