I need to test some old embedded stuff but the LE test endpoint (https://valid-isrgrootx1.letsencrypt.org/) doesnt support TLS_RSA_WITH_3DES_EDE_CBC_SHA anymore.
Reason: LE has announced that it will change the default intermediate certificate:
“Subscribers who need to support very old TLS/SSL clients may wish to manually configure their servers to continue using the cross-signature from IdenTrust. You can test whether a given client will work with the newer intermediate by accessing our test site.”
What intermediate cert will be used from then on? I guess it’ll transtition from  to ?
Thanks & best regards,