bump MSRV to 1.81

Author: VoidStarKat

.circleci/config.yml

@@ -53,8 +53,8 @@ workflows:
           toolchain: stable
           features: --all-features
       - rust:
-          name: Rust AArch64 (1.70.0)
-          toolchain: 1.70.0
+          name: Rust AArch64 (1.81.0)
+          toolchain: 1.81.0
           features: --all-features
       - rust:
           name: Rust AArch64 (nightly)

.github/workflows/rust.yml

@@ -32,7 +32,7 @@ jobs:
           - stable
           - beta
           - nightly
-          - 1.70.0
+          - 1.81.0
 
     steps:
     - name: Checkout

Cargo.toml

@@ -10,7 +10,7 @@ keywords = ["f16", "bfloat16", "no_std"]
 license = "MIT OR Apache-2.0"
 categories = ["no-std", "data-structures", "encoding"]
 edition = "2021"
-rust-version = "1.70"
+rust-version = "1.81"
 exclude = [".git*", ".editorconfig", ".circleci"]
 
 [features]

README.md

@@ -15,8 +15,8 @@ be required for some hardware.
 
 This crate provides [`no_std`](https://rust-embedded.github.io/book/intro/no-std.html) support so can easily be used in embedded code where a smaller float format is most useful.
 
-*Requires Rust 1.70 or greater.* If you need support for older versions of Rust, use 1.x versions of
-this crate.
+*Requires Rust 1.81 or greater.* If you need support for older versions of Rust, use previous 
+versions of this crate.
 
 See the [crate documentation](https://docs.rs/half/) for more details.