GoKawiilLet's Encrypt to shorten certificate lifetimes to 64 days from February 2027
Let's Encrypt will cut the default lifespan of its free SSL/TLS certificates from 90 to 64 days starting February 10, 2027, with a testing phase opening October 14, 2026 for admins to trial the change. The certificate authority also plans a further reduction to 45-day defaults in 2028.