Avalanche® Warp Messaging (AWM) is the newest feature included in Banff 5 (AvalancheGo v1.9.5) released on December 22nd, 2022. AWM brings fast, reliable native communications to all Avalanche Subnets.
AWM allows for native communication between any 2 blockchains on different Subnets, including the passing/verifying of arbitrary messages to and from each other without the need for a bridge. It is compatible with both Subnets and Elastic Subnets.
For a technical deep dive into Banff 5 and an example of the first use of AWM between two Subnets, please check out this Medium article.
For more technical information on AvalancheGo releases, please review the Release Notes.