CancellationToken added to 2.0 IDistributedCache breaks 1.0 based cache implementations

[jeffrymorris]

Hi All -

This commit adds cancellation tokens to some of IDistributableCache members, which causes a MissingMethodException when a 1.0 based implementation is used in a 2.0 project. See here for reference.

The question I have is why make the change a breaking change? Why not leave GetAsync(key) and add the second overload that takes cancellation tokens?

Thanks,
Jeff

[Tratcher]

Even adding a new overload to the interface would have been a breaking change.

[jeffrymorris]

@Tratcher - true, but since its dynamically invoked vs compiled it shouldn't it resolve?

[Tratcher]

It depends on how it was called, among other things. The issue is moot at this point though because the 2.0 bits have been finalized.