AxonFlow v11.5.1 Release Notes

v11.5.1 is a patch over v11.5.0 with the same platform binaries and behaviour. It exists because every PostgreSQL minor the v11.5.0 deployment templates allowed had been retired by Amazon RDS, so a fresh AWS stack rolled back on database creation.

What changed

• Deployment templates: the dedicated Enterprise and the Hosted CloudFormation templates allow PostgreSQL 15.15 through 15.19 and default to 15.17, the version the AxonFlow-operated fleet runs. An existing stack keeps its own engine version; only a new stack uses the new default.
• Everything else is v11.5.0: the independently licensed payment_exception and support_refund module contracts, the governed model path, and the CVE-2026-78661 rebuilds of every binary and both observability images. Nothing is enabled by upgrading; provider Send stays disabled.

Deployment and migration

Additive. Upgrading from v11.5.0 moves the version string only. From v11.4.0, follow the v11.5.0 notes.

Client versions

Unchanged from v11.5.0.

The Community source release targets the independently reviewed Community mirror of the tagged Enterprise source.