Email Rcvd: Update your client software to continue using Let's Encrypt

Admins: PLEASE MARK AS PINNED TOPIC FOR COMMUNITY WIKI
(There are too many duplicate postings on this topic)

If you have revd an email with subject line
Update your client software to continue using Let’s Encrypt

You probably have a setting in a config file which is pointing to the old renewal server hostname “V01”.

Trying to do an apt-get in hopes of “upgrading” your software will not fix this.

You need to edit the config files for each domain you have.

Try this grep search on your computer/server, from a terminal / command prompt, and you may need to be in superuser mode to search subfolders…
grep -RInwF ‘/etc/’ -e ‘api.letsencrypt’ 2>/dev/null

starting in the folder “/etc” search all subfolders for text string “api.letsencrypt”
send any access denied error messages to trash

results returned should show you .conf files in the subdir / folder named “renewal”

open the .conf file in a text editor
search for the line “server = https://acme-v01.api.letsencrypt.org/directory
edit it to new value “server = https://acme-v02.api.letsencrypt.org/directory
save file

repeat for each domain in renewals folder.

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DO NOT RUN THIS COMMAND YET
sed -i.bak s/acme-v01/acme-v02/g /etc/letsencrypt/renewal/* ?


(using sed -i is always a bit dangerous. beware.)

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If you have specific site feedback you can create a thread on that section of the forum. While developing these notifications, we had a thread open looking for feedback on the email content. I think a new thread would be a great place to recommend a pinned topic for solutions to upgrading to ACMEv2 and suggesting some ‘solved’ posts that could help others and collected there.

@9peppe I think you mean /etc/letsencrypt/renewal (not renewals).

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