anoopj opened a new pull request, #15049:
URL: https://github.com/apache/iceberg/pull/15049

   These types will be used for the[ v4 adaptive metadata 
tree](https://s.apache.org/iceberg-single-file-commit) and will be used by 
subsequent PRs for manifest reading/writing.
   
   For now, we are adding these as package-private interfaces in core, and 
eventually we will move them into api.
   
   Prototype PR: https://github.com/apache/iceberg/pull/14533
   
   Changes
   
   API:
    - Add DATA_MANIFEST and DELETE_MANIFEST to FileContent enum for V4 manifest 
entry types
   
   Core:
     - TrackedFile - Unified V4 manifest entry representation (equivalent of 
ContentFile for V4)
     - TrackingInfo - Entry status, snapshot ID, sequence numbers, and 
first-row-id
     - ContentInfo - Metadata for externally stored content (deletion vectors)
     - ManifestStats - Manifest-level statistics (file/row counts, min sequence 
number)
   


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