Asset Hub Migration Monthly Update
Timeline on hold 
To accommodate some of our biggest partners we will be delaying the migration. We are currently in talks with them to find dates that will work for most of them. Please bear with us.
Migration Dashboard is live
https://migration.paritytech.io/ will give you a live update of the migration.
New guides
As a preparation for the upcoming migration, you can already set up your Sidecar environment now. Make sure to have the multi-chain configuration and meet the node requirements (as described in the guide) - some endpoints will not work with Asset Hub post-migration without this setup.
After migration, the location for managing your validator session key vs. your staking operations will be split between Asset Hub and the Relay Chain. Please, follow this guide for more information.