Let's Encrypt Drops "Client Authentication" (mTLS) from Its TLS Certificates
(utoronto.ca)
The TLS news of the time interval is that Let's Encrypt certificates will no longer be usable to authenticate your client to a TLS server (via a number of people on the Fediverse). This is driven by a change in Chrome's "Root Program", covered in section 3.2, with a further discussion of this in Chrome's charmingly named Moving Forward, Together in the "Understanding dedicated hierarchies" section; apparently only half of the current root Certificate Authorities actually issue TLS server certificates.
The TLS news of the time interval is that Let's Encrypt certificates will no longer be usable to authenticate your client to a TLS server (via a number of people on the Fediverse). This is driven by a change in Chrome's "Root Program", covered in section 3.2, with a further discussion of this in Chrome's charmingly named Moving Forward, Together in the "Understanding dedicated hierarchies" section; apparently only half of the current root Certificate Authorities actually issue TLS server certificates.