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Event IDs for some Microsoft.AspNetCore.Mvc.Core log messages changed

  • Article

As part of updating the Microsoft.AspNetcore.Mvc.Core assembly to use LoggerMessageAttribute, the ASP.NET Core team discovered logger event IDs that were reused within a single log category. Event IDs and names should be unique so that different message types can be identified. These IDs have been updated to ensure that they're unique within a single log category.

Version introduced

ASP.NET Core 7.0

Previous behavior

Some logger event IDs within the Microsoft.AspNetCore.Mvc.Core assembly were reused within a single log category.

New behavior

Duplicate logger event IDs within a single log category within the Microsoft.AspNetCore.Mvc.Core assembly have been updated.

Type of breaking change

This change affects binary compatibility.

Reason for change

Logger event IDs and names should be unique so that different message types can be identified.

If you have code or configuration that references the old logger event IDs, update those references to use the new IDs.

Affected APIs

Not detectable via API analysis.