docs: Note required OS upgrade in upgrade notes.

This commit is contained in:
Alex Vandiver
2024-08-01 14:55:58 +00:00
committed by Tim Abbott
parent 1ab4723d59
commit cf5accfa7f

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@@ -210,6 +210,9 @@ _Released 2024-07-25_
#### Upgrade notes for 9.0
- Servers running Ubuntu 20.04 must [upgrade their operating system to Ubuntu
22.04](../production/upgrade.md#upgrading-the-operating-system)
before upgrading to Zulip 9.0.
- This release introduces a new [Zulip updates](https://zulip.com/help/configure-automated-notices#zulip-update-announcements) feature, which
announces significant product changes and new features via automated
messages to a configurable channel. Generally, these announcements will