Bump MSRV to 1.50

Author: Sh3Rm4n

.github/workflows/ci.yml

@@ -64,7 +64,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.48.0
+          toolchain: 1.50.0
           target: thumbv7em-none-eabihf
           override: true
           profile: minimal

CHANGELOG.md

@@ -31,6 +31,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Breaking Changes
 
+- The MSVR was bumped to 1.50 ([#220])
 - Replace custom time based units with types defined in the [embedded-time][]
   crate ([#192])
 - The `rcc` public API now expects time based units in `Megahertz`.

README.md

@@ -154,7 +154,7 @@ See the [examples folder](examples) for more example programs.
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.48.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.50.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 <!-- This should not prevent anyone to use newer features. -->