64-Day Certificate Lifetimes Coming Feb 2027
Summary
Let's Encrypt will transition to 64-day certificate lifetimes for all subscribers starting Feb 10, 2027, with options for shorter lifetimes. The update includes staging tests, ARI-based renewal guidance, and a reduced authorization reuse window, aimed at improving security and forcing automation in certificate management. The article also provides practical steps for operators to adjust renewals, cron jobs, and deployment workflows.