v2.4.0

Enhancements:

• Added Promise.ParallelFor and Promise.ParallelForEach APIs to run iterations concurrently and asynchronously (compare to Parallel.ForEach).
• Exposed CancelationRegistration.DisposeAsync() in all supported runtimes.
• Added AsyncLock and AsyncMonitor to be able to lock around asynchronous resources (in the Proto.Promises.Threading namespace, only available in .Net Standard 2.1 or newer runtimes).

Fixes:

• Promise result values are no longer stored past the promise's lifetime.
• Fixed compilation errors in Unity 2017 when the experimental .Net 4.6 runtime is selected.
• Fixed compilation warnings in Unity when importing the ProtoPromise package through the Package Manager.
• Fixed default foreground context never being executed in Unity 2019.1 or newer.

Optimizations:

• Increased performance of progress reports.
• Increased performance of promises.
• Reduced memory consumption of All, Merge, Race, and First promises.

Misc:

• Progress reports now use full 32-bit float precision instead of 16-bit fixed precision.
• Changed Promise.Run forceAsync flag to default to true instead of false.

Breaking Changes:

• Changed CancelationRegistration.DisposeAsync() to return Promise instead of ValueTask (await using code still works the same, but may need a recompile).