aws-lambda v5.22.0 - Upgrade newly created functions to a target runtime

Aug 24, 2026GuardrailsMods

What's new?

  • Added support to upgrade newly created functions to a target runtime without touching existing ones. The AWS > Lambda > Function > Allowed Runtime policy has a new Enforce: Upgrade to Target Runtime if new value that upgrades only functions created within the last 60 minutes to the runtime in the Target Runtime sub-policy; older functions are checked but never modified.