The mainnet cutover to version 2.1 will happen at frame 244,200, approximately April 14, 12:00am UTC.
Version 2.1 will be released roughly between April 7-9, giving time to prepare nodes for the upgrade. An accompanying upgrade guide will be published with the release. Node operators, especially those using cluster configurations should review this when published and plan accordingly.
After the cutoff frame, the network will pause as the mainnet state is converted to the encrypted hypergraph format, the finalized settled state of the hypergraph will be published across the network, and the network will resume operations under the new 2.1 network.
After frame 244,200, the network will be monitored for stability, and after confirmation, the bridge will be re-enabled, with bidirectional support.