SSL Certificates from letsencrypt are not working anymore

[igolets]

letsencrypt was using "DST Root CA X3" as root authority previously. This root auth is expired now. So letsencrypt is using "ISRG Root X1" as root authority at the moment. But Jira (as well as Confluence and Bitbucket) do not accept new certificates.

[David at David Simpson Apps · Accepted solution]

Yes, theres a thing happening today with LetsEncrypt certificates.

Take a look at this big long thread from Scott Helme on Twitter:

https://twitter.com/Scott_Helme/status/1443569171581652993

See also this from LetsEncrypt themselves:

https://twitter.com/letsencrypt/status/1443248706166398984 

https://community.letsencrypt.org/t/help-thread-for-dst-root-ca-x3-expiration-september-2021/149190/24