Hi,
If API version will be deprecated for any API in Azure no matter which you will get information on Azure Updates. Probably the same will happen for SecurityIncident table. I have seen certain APIs on certain resources deprecated but I have never seen a column rename. Usually, a whole table could be deprecated rather than a single column as a deprecation of a single column is breaking change that cannot just happen right away as it will break customer integrations. In any case any significant changes that deprecate something are communicated in advanced via Azure Updates.
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