Daml Hub Release - Canton Protocol v4 Infrastructure Upgrade -- scheduled for Wednesday Morning, July 26th at 6AM EST

We will be releasing a new version of hub.daml.com on Wednesday Morning July 26th, 2023 at 6AM EST (Wednesday July 26th, 2023 at 10AM UTC).

Customers with ledgers created before December 2022 will now be able to leverage canton protocol v4 features, including interface support. There are no immediate changes required by customers as a result of this upgrade. You can change your models to make use of interface support at a time of your choosing. Customers who created ledgers on Daml Hub after December 2022 already have protocol v4 features available to them.

Canton participant nodes will be upgraded and restarted as part of this release, which updates the infrastructure stack for all ledgers. This will cause unavailability of up to an hour to the Ledger API for your ledger, and will also cause your deployed bots, integrations, and triggers to restart.