What's New in Version 4.5

What's New in Version 4.5 of Device Detection🔗

Performance🔗

Graph Selection🔗

  • Removed usePerformanceGraph and usePredictiveGraph configuration options.
    Detection now uses a single, unified predictive graph.

Property Retrieval🔗

  • Added propertyValueIndex configuration option.
    When true, property values are indexed at startup for faster retrieval.
    See Property Indexing for more details.

New Evidence Keys🔗

  • Added support for alternative representations of User-Agent Client Hints via the following evidence keys (usable with query. and cookie. prefixes):

    • 51D_GetHighEntropyValues: Base64-encoded JSON string from JSON.stringify() of the getHighEntropyValues() JavaScript call.
    • 51D_StructuredUserAgent: Plain JSON string using the device.sua structure as defined in OpenRTB 2.6.

    These keys are functionally equivalent to passing the following HTTP headers:

    • Sec-CH-UA
    • Sec-CH-UA-Mobile
    • Sec-CH-UA-Platform
    • Sec-CH-UA-Model
    • Sec-CH-UA-Full-Version-List
    • Sec-CH-UA-Platform-Version

    The conversion happens natively in the device detection engine, eliminating the need for additional pipeline elements. See the UA-CH JavaScript page for detailed usage information.

Results Serialization🔗

  • Introduced ResultsHashSerializer service class.
    Enables retrieval of all detected property values as a single JSON-serialized string.
    Previously, properties could only be accessed individually by key.

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