Document how to migrate from trusting the old key to trusting the new key
Originally created by @sajolida on #8769 (Redmine)
Feature Branch: feature/8740-new-signing-key-phase-2
Parent Task: #8740 (closed)
Originally created by @sajolida on #8769 (Redmine)
Feature Branch: feature/8740-new-signing-key-phase-2
Parent Task: #8740 (closed)