Release of Canton 3.7.1

Canton 3.7.1 has been released on October 30, 2026.

Summary

This patch release introduces configuration options for GCP KMS key deletion notice periods.

GCP KMS key deletion notice periods can now be configured via destroyScheduledDuration, and values must be within 24h and 120 days. The default remains 30 days, matching the previous default value.

The following Canton protocol versions are supported:

Dependency	Version
Canton protocol versions	36, 37

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

Dependency	Version
Java Runtime	OpenJDK 64-Bit Server VM (build 21.0.12+2-nixos, mixed mode, sharing)
Postgres	Recommended: PostgreSQL 17.11 (Debian 17.11-1.pgdg13+2) – Also tested: PostgreSQL 14.24 (Debian 14.24-1.pgdg13+2), PostgreSQL 15.19 (Debian 15.19-1.pgdg13+2), PostgreSQL 16.15 (Debian 16.15-1.pgdg13+2), PostgreSQL 17.11 (Debian 17.11-1.pgdg13+2), PostgreSQL 18.6 (Debian 18.6-1.pgdg13+2)