Update CHANGELOG for InterruptNumber impl for Nr
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
- New `InterruptNumber` trait is now required on interrupt arguments to the
various NVIC functions, replacing the previous use of `Nr` from bare-metal.
+ For backwards compatibility, `InterruptNumber` is implemented for types
+ which are `Nr + Copy`, but this will be removed in a future version.
- Associated const `PTR` is introduced to Core Peripherals to
eventually replace the existing `ptr()` API.
- A delay driver based on SysTick.
