# CommCare Cloud release notes 2020-11-18

**URL:** <https://forum.dimagi.com/t/commcare-cloud-release-notes-2020-11-18/7835>\
**Category:** Maintainer Announcements\
**Created:** [November 18, 2020, 9:30pm UTC](https://forum.dimagi.com/t/commcare-cloud-release-notes-2020-11-18/7835 "2020-11-18T21:30:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ethan\_Soergel](https://dimagi.b-cdn.net/user_avatar/forum.dimagi.com/ethan_soergel/32/543_2.png) [@Ethan\_Soergel](https://forum.dimagi.com/u/Ethan_Soergel)\
**Post date:** [November 18, 2020, 9:30pm UTC](https://forum.dimagi.com/t/commcare-cloud-release-notes-2020-11-18/7835/1 "2020-11-18T21:30:19Z")

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> **2020-11-16** [update-letsencrypt-to-alternate-chain](https://dimagi.github.io/commcare-cloud/changelog/0039-update-letsencrypt-to-alternate-chain.html)  
> On January 11 2021, Let’s Encrypt will change its default certificate chain from using the legacy Identrust root certificate, to its own modern ISRG root certificate. In order to maintain backwards compatibility with existing mobile devices it is necessary to keep using the Identrust certificate chain.

## About these release notes

If you run your own CommCare instance, these release notes are for you. As always, see [http://dimagi.github.io/commcare-cloud/changelog/](http://dimagi.github.io/commcare-cloud/changelog/) for the most up to date release notes and release note history.

These release notes are **not simply for your information** , they are **instructions for you to follow**.

Each change includes manual steps for you to follow to apply changes to your environment configuration or infrastructure that will allow you to be on the latest versions of commcare-cloud and commcare-hq.

Inside the instructions for applying the maintenance for each change, it will tell you whether there are any environments it may not be necessary for. When in doubt, apply the steps for every change.

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**Author:** ![Ethan\_Soergel](https://dimagi.b-cdn.net/user_avatar/forum.dimagi.com/ethan_soergel/32/543_2.png) [@Ethan\_Soergel](https://forum.dimagi.com/u/Ethan_Soergel)\
**Post date:** [November 18, 2020, 9:30pm UTC](https://forum.dimagi.com/t/commcare-cloud-release-notes-2020-11-18/7835/2 "2020-11-18T21:30:51Z")

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Thanks @erobinson for calling attention to this as well:

> [@Letsencrypt certificates may stop working on older devices after 11/1/21](https://forum.dimagi.com/t/letsencrypt-certificates-may-stop-working-on-older-devices-after-11-1-21/7832):
>
> Full story here: A heads-up that Android devices prior to 7.1.1 may stop working on 1 September 2021 if your self-hosted Central deployment uses letsencrypt certificates.