# Blog: Wazo Platform 21.16 Released **URL:** \ **Category:** Announce\ **Created:** [December 6, 2021, 6:40pm UTC](https://wazo-platform.discourse.group/t/blog-wazo-platform-21-16-released/939 "2021-12-06T18:40:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![afournier](https://avatars.discourse-cdn.com/v4/letter/a/67e7ee/32.png) [@afournier](https://wazo-platform.discourse.group/u/afournier)\ **Post date:** [December 6, 2021, 6:40pm UTC](https://wazo-platform.discourse.group/t/blog-wazo-platform-21-16-released/939/1 "2021-12-06T18:40:48Z")
Any feedback about [Wazo Platform 21.16](https://wazo-platform.org/blog/release-review-2116) is welcome! ---
**Author:** ![alrea](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@alrea](https://wazo-platform.discourse.group/u/alrea)\ **Post date:** [December 7, 2021, 5:50pm UTC](https://wazo-platform.discourse.group/t/blog-wazo-platform-21-16-released/939/2 "2021-12-07T17:50:52Z")
It seems that the signature of the Wazo repository is not valid ![image](https://global.discourse-cdn.com/free1/uploads/wazo_platform/original/1X/b937487d19c3fe3a75d580000a2676db83932b03.png) ---
**Author:** ![afournier](https://avatars.discourse-cdn.com/v4/letter/a/67e7ee/32.png) [@afournier](https://wazo-platform.discourse.group/u/afournier)\ **Post date:** [December 7, 2021, 7:24pm UTC](https://wazo-platform.discourse.group/t/blog-wazo-platform-21-16-released/939/3 "2021-12-07T19:24:06Z")
It’s a known issue, published in the [upgrade notes](https://wazo-platform.org/uc-doc/upgrade/upgrade_notes#21-16). Make sure to read them every release 😺 ---
**Author:** ![alrea](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@alrea](https://wazo-platform.discourse.group/u/alrea)\ **Post date:** [December 8, 2021, 6:04am UTC](https://wazo-platform.discourse.group/t/blog-wazo-platform-21-16-released/939/4 "2021-12-08T06:04:56Z")
Indeed. I use to only read the blog post, which is a bad habit. I rely on the backup in case there is a problem during the upgrade.