2.15.0

Improvements

• Introduce SetPolicyResultFailedIf(<T>) methods for the PolicyCollection and the PolicyDelegateCollection(<T>) classes.
• Introduce IncludeInnerError<TInnerException> and ExcludeInnerError<TInnerException> methods for policy processors and library policies(RetryPolicy, SimplePolicy and FallbackPolicy).
• Cross-synchronisation support for invoking a non-generic fallback delegate when a generic one is not set.

Small changes

• Reduce allocations by using only a single instance of the RetryErrorContext class in Retry processing.
• Add Apply<T> extension method to Action<T> delegate.
• Refactor FallbackPolicyBase class.

Docs changes

• Correct the doc comments for the SetPolicyResultFailedIfInner methods of the library policies.
• Update 'PolicyResult handlers' README Chapter.