Let’s Encrypt will no longer include the “TLS Client Authentication” Extended Key Usage (EKU) in our certificates beginning in 2026. Most users who use Let’s Encrypt to secure websites won’t be affected and won’t need to take any action. However, if you use Let’s Encrypt certificates as client certificates to authenticate to a server, this change may impact you.
To minimize disruption, Let’s Encrypt will roll this change out in multiple stages, using ACME Profiles:
Mainly just ddns on my asus router and my asustor Nas secure log in to the devices and I think some of the apps also use the one generated in the nas for log in.
Mainly just ddns on my asus router and my asustor Nas secure log in to the devices and I think some of the apps also use the one generated in the nas for log in.