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CHANGELOG.md

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Changelog

Notable changes to the ObjectBox Swift library.

For more insights into what changed in the ObjectBox C++ core, check the ObjectBox C changelog.

4.0.1 - 2024-10-16

  • Built with Xcode 15.0.1 and Swift 5.9.
  • Make closing the Store more robust. In addition to transactions, it also waits for ongoing queries. This is just an additional safety net. Your apps should still make sure to finish all Store operations, like queries, before closing it.
  • Generator: no longer print a Mapping not found warning when an entity class uses ToMany.
  • Some minor vector search performance improvements.
  • Update to ObjectBox C 4.0.2.

Sync

  • Fix a serious regression, please update as soon as possible.

4.0.0 - 2024-07-22

ObjectBox now supports Vector Search to enable efficient similarity searches.

This is particularly useful for AI/ML/RAG applications, e.g. image, audio, or text similarity. Other use cases include semantic search or recommendation engines.

Create a Vector (HNSW) index for a floating point vector property. For example, a City with a location vector:

// objectbox: entity
class City {

    // objectbox:hnswIndex: dimensions=2
    var location: [Float]?
    
}

Perform a nearest neighbor search using the new nearestNeighbors(queryVector, maxCount) query condition and the new "find with scores" query methods (the score is the distance to the query vector). For example, find the 2 closest cities:

let madrid = [40.416775, -3.703790]
let query = try box
        .query { City.coordinates.nearestNeighbors(queryVector: madrid, maxCount: 2) }
        .build()
let closest = query.findWithScores()[0].object

For an introduction to Vector Search, more details and other supported languages see the Vector Search documentation.

  • Built with Xcode 15.0.1 and Swift 5.9.
  • The generator now displays an error when using an index on a property type that can not be indexed.
  • Update to ObjectBox C 4.0.1.

2.0.0 - 2024-05-15

  • Built with Xcode 15.0.1 and Swift 5.9.

  • Support creating file-less in-memory databases, e.g. for caching and testing. To create one instead of a directory path pass memory: together with an identifier string when creating a Store:

    inMemoryStore = try Store(directoryPath: "memory:test-db");

    See the Store documentation for details.

  • Change Store.closeAndDeleteAllFiles() to support deleting an in-memory database.

  • Removed some deprecated APIs:

    • Removed findIntegers() for property query, replaced by find().
    • Removed find() of Box, replaced by all().

  • Update to ObjectBox C 4.0.0.

Previous versions

See the changelog in the documentation.