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PoloDB 5.3.0 expands MongoDB-compatible query behavior, strengthens write correctness, and improves ARM64 support.

Highlights

  • Correct $in matching for scalars, arrays, and regular expressions (#231)
  • Add $all query matching (#233)
  • Support range queries on nested fields (#237)
  • Allow updates that retain an existing unique-index value (#236)
  • Reject duplicate _id values (#238)
  • Upsert only when no document matches (#239)
  • Support and validate dotted paths in update operators (#240)
  • Fix RocksDB FFI pointer types on ARM64 and add ARM64 CI coverage (#234)
  • Refresh the README and document current compatibility boundaries (#235)

Install

Embedded Rust library:

:::console
cargo add polodb_core@5.3.0

Standalone CLI server:

:::console
cargo install polodb --version 5.3.0

Published crates:

Prebuilt CLI binaries for macOS x64, Linux x64, and Windows x64 are attached to this release.

Full changelog: v5.2.0...v5.3.0

Source: README.md, updated 2026-07-26