Upgrade letsencrypt client
This email is from 3 months ago, but I presume it's still true...
Hi,
According to our records, the software client you're using to get Let's
Encrypt TLS/SSL certificates issued or renewed at least one HTTPS certificate
in the past two weeks using the ACMEv1 protocol. Here are the details of one
recent ACMEv1 request from each of your account(s):
Client IP address: 2a01:4f9:2a:d67::2
User agent: CertbotACMEClient/0.23.0 (certbot; Ubuntu 18.04.3 LTS) Authenticator/webroot Installer/None (renew; flags: n hook) Py/3.6.8
Hostname(s): "runko.social.coop"
Request time: 2020-05-27 10:21:50 UTC
Beginning June 1, 2020, we will stop allowing new domains to validate using
the ACMEv1 protocol. There will be brown-outs throughout June, and new ACMEv1
validations will be permanently disabled on July 2, 2020. The schedule is
available at:
https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1/88430/7
You should upgrade to an ACMEv2 compatible client immediately, and use these
production brown-outs to verify that your organization will not be affected.
For most subscribers, simply upgrading to the latest version of your existing
client will suffice. You can view the client list at:
https://letsencrypt.org/docs/client-options/
If you're unsure how your certificate is managed, get in touch with the
person who installed the certificate for you. If you don't know who to
contact, please view the help section in our community forum at
https://community.letsencrypt.org/c/help and use the search bar to check if
there's an existing solution for your question. If there isn't, please create
a new topic and fill out the help template.
ACMEv1 API deprecation details can be found in our community forum:
https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1
As a reminder: In the future, Let's Encrypt will be performing multiple
domain validation requests for each domain name when you issue a certificate.
While you're working on migrating to ACMEv2, please check that your system
configuration will not block validation requests made by new Let's Encrypt IP
addresses, or block multiple matching requests. Per our FAQ
(https://letsencrypt.org/docs/faq/), we don't publish a list of IP addresses
we use to validate, and this list may change at any time.
To receive more frequent updates, subscribe to our API Announcements:
https://community.letsencrypt.org/t/about-the-api-announcements-category