canton v2.3.17

Release of Canton 2.3.17

Canton 2.3.17 has been released on October 23, 2023. 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 is a maintenance release of Canton. We recommend users who uses Besu to upgrade to this version to ensure
that sequencer drivers properly report their Health Status that allows a HA environment to fail over.

Bugfixes

Fixed a bug in the health status of Besu sequencer driver

Description
: when a sequencer driver is connected to a Besu node, in case the Besu node is
unable to respond within 15s the sequencer is still considered healthy as long as a connection to the node can be made.

Affected deployments
: Besu deployments.

Affected versions
: All canton versions supporting Besu.

Impact
: The participant will be unable to change to a healthy sequencer (in a multi sequencer setup) and will be stuck until Besu problem is resolved.

Workaround
: Restarting the Besu node.

Likelihood of the bug
: The bug occurs very rarely and only when the Besu node is having unusual problems or under heavy load.

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 64-Bit Server VM 18.9 (build 11.0.16+8, mixed mode, sharing)
Postgres	postgres (PostgreSQL) 14.9 (Debian 14.9-1.pgdg120+1)
Oracle	19.15.0
Besu	besu/v21.10.9/linux-x86_64/openjdk-java-11
Fabric	2.2.2