Renewal of SSL certs

Tailscale version - latest as of 23/05/2023
Your operating system & version - Windows 11, Debian Bullseye, Ubuntu 23.04, Proxmox 7.4

Thanks for the very useful software, easy to setup on multiple devices.

I use MagicDNS and tailscale SSL certs to secure OMV and Proxmox/PBS installs. I cannot renew certs until after expiry. Certbot on Debian/Ubuntu allows renewals before expiry.

Any reason for this?