# Update your client software to continue using Let's Encrypt **URL:** \ **Category:** Help\ **Created:** [January 20, 2020, 10:14am UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067 "2020-01-20T10:14:33Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![hubnet](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/hubnet/32/36502_2.png) [@hubnet](https://community.letsencrypt.org/u/hubnet)\ **Post date:** [January 20, 2020, 10:14am UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/1 "2020-01-20T10:14:33Z")
Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. [https://crt.sh/?q=example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help. My domain is:[https://hubblog.se/](https://hubblog.se/) I ran this command: It produced this output: My web server is (include version): ubuntu0.16.04.9 The operating system my web server runs on is (include version): ubuntu0.16.04.9 My hosting provider, if applicable, is: [glesys.com](http://glesys.com) vps I can login to a root shell on my machine (yes or no, or I don’t know): yes I’m using a control panel to manage my site (no, or provide the name and version of the control panel):no The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you’re using Certbot): certbot 0.28.0 Hi thanks for a great service I got a mail like this * * * 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. Your client’s IP address was: 2a02:750:5::15d 31.192.224.167 * * * The mail is not from the server with the domain hubblog.se it is from a clone of another server that has the certbot version 0.25.0 My questions 1. the ACMEv1 protocol is that related to certbot version, do i get ACMEv2 if i upgrade certbot? 2. Hubblog.se has certbot 0.28.0 is that enough to have ACMEv2 and to be up to date 3. Why did i not get a mail from the server that the 31.192.224.167 is a clone of . that is hubnet.se regards Hubertus ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [January 20, 2020, 3:58pm UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/2 "2020-01-20T15:58:23Z")
> [@hubnet](#): > > server that has the certbot version 0.25.0 Certbot 0.25.0 needs to be upgraded (or removed if you are no longer using the certs handled by it.) ---
**Author:** ![hubnet](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/hubnet/32/36502_2.png) [@hubnet](https://community.letsencrypt.org/u/hubnet)\ **Post date:** [January 21, 2020, 10:39am UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/3 "2020-01-21T10:39:49Z")
Okay so 0.28.0 is the latest version? does 0.28.0 support ACMEv2? regards Hubertus ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [January 21, 2020, 1:28pm UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/4 "2020-01-21T13:28:40Z")
> [@hubnet](#): > > Okay so 0.28.0 is the latest version? For Ubuntu 16.04, I think 0.31.0 is the latest. > [@hubnet](#): > > does 0.28.0 support ACMEv2? Maybe, but all the "parts" need to be updated as well. Primarily **python3-acme** which should be version 0.31.0-2 I would check the system for updates: `sudo apt update` `sudo apt list --upgradeable` ---
**Author:** ![hubnet](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/hubnet/32/36502_2.png) [@hubnet](https://community.letsencrypt.org/u/hubnet)\ **Post date:** [January 21, 2020, 2:44pm UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/5 "2020-01-21T14:44:32Z")
Okay thanks 😉 sudo apt list --upgradeable says python3-acme/xenial 0.31.0-2+ubuntu16.04.6+certbot+2 all [upgradable from: 0.25.1-1+ubuntu16.04.1+certbot+1] anything else that should be ugraded? How can I confirm that ACMEv2 is in play? kind regards Hubertus ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [January 21, 2020, 3:54pm UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/6 "2020-01-21T15:54:31Z")
> [@hubnet](#): > > anything else that should be ugraded? Certbot. > [@hubnet](#): > > How can I confirm that ACMEv2 is in play? The simplest is to do a --dry-run against the staging environment [which now only supports acmev2] Otherwise, you can also review the LE logs for acmev01, acmev02 use. ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [February 20, 2020, 3:54pm UTC](https://community.letsencrypt.org/t/update-your-client-software-to-continue-using-lets-encrypt/111067/7 "2020-02-20T15:54:38Z")
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