Update the MSRV

.github/workflows/ci.yml

@@ -8,13 +8,10 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.60.0
-          - 1.61.0
-          - 1.62.1
-          - 1.63.0
           - 1.64.0
           - 1.65.0
-          - 1.66.0
+          - 1.66.1
+          - 1.67.0
           - stable
           - beta
           - nightly

CHANGELOG.md

@@ -12,6 +12,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [Unreleased]
+
+### Changed
+- The minimum supported Rust version (MSRV) is now 1.64.
+
+
 ## [0.21.0] - 2022-12-19
 
 ### Fixed

README.md

@@ -79,7 +79,7 @@ man =(curl -sSf "https://raw.githubusercontent.com/breard-r/acmed/main/man/en/ta
 
 ## Build from source
 
-In order to compile ACMEd, you will need the [Rust](https://www.rust-lang.org/) compiler and its package manager, Cargo. The minimal required Rust version is 1.60, although it is recommended to use the latest stable one.
+In order to compile ACMEd, you will need the [Rust](https://www.rust-lang.org/) compiler and its package manager, Cargo. The minimum supported Rust version(MSRV) is 1.64, although it is recommended to use the latest stable one.
 
 ACMEd depends OpenSSL 1.1.0 or higher.