Update your client software to continue using Let's Encrypt

I received an email with the information below, how can I proceed?

On June 1, 2021, you will no longer be able to renew your certificates using ACMEv1. You should upgrade to an ACMEv2 compatible client before then, or certificate issuance will fail. For most people, 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/

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Hi @jtarciso

you have to do that. Update your client or use another client.

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Is there a tutorial for me to update the client?

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What client are you currently using?

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When you talk about the client is it the webservice?
If so, I use IIS (version 10.0.14393.0) on Windows Server 2016.

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The client is whatever software (which is probably running on the same server as IIS) is making the requests to Let's Encrypt to get your certificates. That's what you need to be upgrading or replacing.

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When I update the certificate, I run the letsencrypt application "A Simple ACME Client for Windows" version 1910.1.6661.39349

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Then that's what you need to upgrade or replace. I'm not personally familiar with it, but you may need to see if there's a current version that supports ACMEv2, or replace it with something else that integrates with IIS.

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You're using Win-ACME:

GitHub - win-acme/win-acme: A simple ACME client for Windows (for use with Let's Encrypt et al.)

win-acme (win-acme.com)

Their latest version is 2.1.13.1

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