To answer your question, API version retirements (September 2023) was scheduled to retire on September 30, 2023, but it was delayed right now. Our product team will soon announce the revised date and we will keep posted in the other thread. Yes, mtv1 - Consumption tier is also impacted by this change. If you have any ARM/bicep/PowerShell/CLI tools, or SDK that use prior version to 2021-08-01, then please follow required action to upgrade as soon as possible.
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