In accordance with Lets Encrypt’s (the certificate authority for this site) 90-day SSL certificate expirations, I needed to renew the certificate for this site. It should be seamless, but if you are using any applications that support certificate pinning, you may receive a notice of a certificate mismatch. This is normal, and the alert serves as a warning against a possible certificate forgery. Simply accept the new certificate. However, for the extra paranoid (myself included), you may validate the new certificate’s authenticity with the below fingerprints:
SHA1 Fingerprint:
4D:28:C4:DA:0C:DE:48:39:6D:CD:1A:28:E5:D5:CC:46:5C:34:85:32
SHA-256 Fingerprint:
39:4B:3A:D3:40:C5:EA:89:B1:1C:80:F8:E4:E7:2B:30:E4:23:E2:42:4F:BC:6D:EB:86:CD:FA:83:1F:B8:57:BE
The current certificate will be valid until July 16, although I will probably renew it within 2 weeks of that.
–Simon