CHANGES

1.5.0 (Jan 25, 2024)
- Added support for Flag Sets on the SDK, which enables grouping feature flags and interacting with the group rather than individually (more details in our documentation):
  - Added new variations of the get treatment methods to support evaluating flags in given flag set/s.
    - getTreatmentsByFlagSet and getTreatmentsByFlagSets
    - getTreatmentWithConfigByFlagSets and getTreatmentsWithConfigByFlagSets
- Updated the following SDK manager method to expose flag sets on flag views:
    - Added `defaultTreatment` property to the `SplitView` object returned by the `split` and `splits` methods of the SDK manager.

1.4.0 (Dec 14, 2023):
- Add support for a custom tracer for client methods.
- Support finer granularity on timeouts.

1.3.0 (Nov 10, 2023):
- Added in-memory evaluation cache for the duration of a request.

1.2.0 (Sep 19, 2023):
- Add support for Client/GetTreatment(s)WithConfig operations.
- Add support for Manager operations. 
- Add default arguments for value & properties in .track()
- Enforce status code validation on rpc responses.

1.1.0 (Sep 6, 2023):
- Fix issue with datetime attributes on php7
- Remove unit tests from autoload
- Add support for .track()
- Internal: Bump test coverage, CI work, build system work.