Full blockchain verification on startup
Cardano node changed the ledger state's format. This Daedalus update needs to verify the entire blockchain on the initial startup after the update is installed, which should take between 10 to 15 minutes, based on the performance of the computer running Daedalus.
Some users might experience cardano-node crashing preventing Daedalus to work correctly. We have a fix for this issue in the next release.
For assistance, please submit a ticket to the IOHK support team from the Help menu in Daedalus, or by using the submit a request form.