v11.6 & v10.11.15 Notices

[amyblais]

Summary

• In-product notice for v11.6 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/475/changes#diff-11766faeb8c25f77d7dbf8e61fd0e9fc8cd1a08858d6b1f8867715a570bfd9d9R82.

Test environment (required)

• Server versions - v11.5 and v11.6

Test steps and expectation (required)

• Spin up a v11.5 server - the notice should appear.
• Spin up a v11.6 server - the notice should not appear.

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Summary

• In-product notice for v10.11.15 dot 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/475/changes#diff-11766faeb8c25f77d7dbf8e61fd0e9fc8cd1a08858d6b1f8867715a570bfd9d9R120.

Test environment (required)

• Server versions - any version from v10.11.0 to v10.11.14; a server version older or newer than v10.11.x

Test steps and expectation (required)

• Spin up a server with a version between v10.11.0 to v10.11.14- the notice should appear only for these versions.
• Spin up a server with a version other than v10.11.x - the notice should not appear for any other versions.

[yasserfaraazkhan]