v8.1 Notice

[amyblais]

Summary

• In-product notice for v8.1 release.

Screenshots of the modals or screens in all target clients (required)

• The server upgrade image should display https://github.com/mattermost/notices/blob/master/images/server_upgrade.png along with the text from https://github.com/mattermost/notices/pull/350/files#diff-11766faeb8c25f77d7dbf8e61fd0e9fc8cd1a08858d6b1f8867715a570bfd9d9R48.

Test environment (required)

• Server versions - v8.0 and v8.1

Test steps and expectation (required)

• Spin up a v8.0 server - the notice should appear.
• Spin up a v8.1 server - the notice should not appear.

[wiersgallak]

Thanks, Amy!

[lindalumitchell]

@amyblais do you know if there is a way to apply these changes to test servers, specifying the different server versions? I'm not sure how to test this kind of change before it's merged. This repo can't spin up its own test servers I don't believe, even of just one version. 🤔

[amyblais]

@lindalumitchell Here are instructions: https://github.com/mattermost/notices#how-to-test-notices-via-cloud-plugin.

[lindalumitchell]

Thanks @amyblais! I'm afraid I'm still unclear about this first step from those instructions: "Prepare notices.json and merge it into the master branch." It doesn't appear that that has happened, so that I would be able to use /cloud and have these changes in effect, yeah? I didn't want to poke around with merging anything. I did spin up a v8.0 server just to double-check, but no notice appears.

[amyblais]

@lindalumitchell The master branch is used only for testing purposes, so it is safe to merge there. Here is an example PR from Yasser #348 that he created to test this notice #346.

[amyblais]

Since Yasser already has some experience with testing notices, I'm ok with waiting until next week and adding him as a reviewer here.

[lindalumitchell]

Ah I see, thank you Amy. I'm giving it a try, and if I don't get it we can wait until next week when Yasser is back.

[lindalumitchell]

Verified using #351 and #352 (per https://github.com/mattermost/notices#how-to-test-notices-via-cloud-plugin) and spinning up v8.0 and v8.1 servers using /cloud. Verified that the notice appears on v8.0 as expected and the links work, and that the notice does not appear on v8.1 as expected. 👍