Update changelog and MSRV to 1.51

Author: MathiasKoch

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
 
         include:
           # Test MSRV
-          - rust: 1.46.0
+          - rust: 1.51.0
             TARGET: x86_64-unknown-linux-gnu
 
           # Test nightly but don't fail

CHANGELOG.md

@@ -7,7 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
 
-* None
+- Bump dependency version of `heapless` to `v0.7.0` to utilize const generics.
+- Bump MSRV to 1.51.0 to get `min_const_generics` for `heapless`.
 
 ## [0.4.0] - 2021-03-05
 

README.md

@@ -35,7 +35,7 @@ These issues / PRs will be labeled as `proposal`s in the issue tracker.
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.46.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.51.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License