Let's Encrypt goes to 64 days on 10 February 2027: what to check now Let's Encrypt moves to 64-day certificates on 10 February 2027 and to 10-day authorization reuse; staging issues them from 14 October 2026. What to check: ARI, hard-coded renewal days, reloads, and certificates copied to other devices by hand.
FortiGate certificates under 100-day lifetimes: your three options Public TLS certificates on a FortiGate (SSL VPN, admin GUI, captive portal) last at most 100 days from 15 March 2027. FortiOS ACME options by version, External Account Binding from 7.6.3, limits, and the manual route.