The original title is about Apache Polaris 1.7.0 and its fixes. Let me rewrite it to be punchy, specific, and within 8-10 words.

Short summary

Apache Polaris 1.7.0 ships critical correctness fixes for the Iceberg REST catalog, including idempotent writes that prevent data loss from network blips, a beta semantic model API, stricter credential vending, and orphan file cleanup. The release looks like maintenance but addresses catalog-level bugs that can corrupt entire tables. The article walks through all four major changes and flags which ones create migration work.

• •Idempotent writes prevent data loss when network drops cause retry storms
• •Beta semantic model API and stricter credential vending improve security
• •Orphan file cleanup and GCS Workload Identity attribution added

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