Canton 2.4.2

Canton 2.4.2 has been released on December 07, 2022. You can download the Daml Open Source edition from the Daml Connect Github Release Section. The Enterprise edition is available on Artifactory. Please also consult the full documentation of this release.

Summary

This release comes with a set of bug fixes. Users are advised to upgrade to it.

What’s New

Security and Bugfixes

• We fixed a bug that would incorrectly set the ledger API DB schema when using the currentSchema property in the participant database config.
• We fixed an error that could lead to rare crashes when restarting an Ethereum sequencer node and zombie queries on associated Besu nodes.
• We fixed an error where the termination of one Ledger API connection could impact others too.
• We have fixed an issue in the Fabric sequencer that leads to availability issues when Fabric peers were partially down.
• We fixed a crash recovery after initialization issue with external sequencers that broke the sequencer nodes if they were restarted immediately after initialization.
• We fixed a clean shutdown issue that sometimes caused a sequencer to hang during shutdown.
• We fixed an issue in the database sequencer where sequencer failover would not succeed if the failover was triggered by a sequencer database outage.
• We fixed a performance degradation of the database sequencer Oracle driver when being run in a high-availability, microservice configuration.

Compatibility

The following Canton protocol and Ethereum sequencer contract versions are supported:

Dependency	Version
Canton protocol versions	2, 3
Ethereum contract versions	1.0.0, 1.0.1

Canton has been tested against the following versions of its dependencies:

Dependency	Version
Java Runtime	OpenJDK 64-Bit Server VM 18.9 (build 11.0.16+8, mixed mode, sharing)
Postgres	postgres (PostgreSQL) 14.6 (Debian 14.6-1.pgdg110+1)
Oracle	19.15.0
Besu	besu/v21.10.9/linux-x86_64/openjdk-java-11
Fabric	2.2.2