Canton 2.3.6

Canton 2.3.6 has been released on September 27, 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 fixes a set of issues. Customers on the 2.3 release line are advised to upgrade to this version. Please note that release 2.3.5 has been skipped.

What’s New

Minor Improvements

• New repair commands repair.identity.download and repair.identity.upload for downloading and uploading the identity and keys of a node. They can be used to preserve a node's identity and keys when its storage is reset.
• Improved resilience of ethereum sequencer to network failures & overloaded Ethereum clients returning invalid data.

Security and Bugfixes

• Fixed a memory leak in the mediator that would lead to JVM degradation over time.
• Fixed an error that could lead to rare crashes when restarting an Ethereum sequencer node and zombie queries on associated Besu nodes.
• Fixed an issue where multiple mediator response messages would confuse transaction processing.

Compatibility

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

Dependency	Version
Canton protocol versions	2.0.0, 3.0.0
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 Runtime Environment 18.9 (build 11.0.16+8)
Postgres	postgres (PostgreSQL) 14.5 (Debian 14.5-1.pgdg110+1)
Oracle	19.15.0
Besu	besu/v21.10.9/linux-x86_64/openjdk-java-11
Fabric	2.2.2