Increase MSRV to 1.28.0 (#716)

.travis.yml

@@ -21,7 +21,7 @@ matrix:
           packages: *i686_packages
     - env: TARGET=i686-unknown-linux-gnu
       os: linux
-      rust: 1.24.1
+      rust: 1.28.0
       addons:
         apt:
           packages: *i686_packages
@@ -35,7 +35,7 @@ matrix:
       rust: stable
     - env: TARGET=x86_64-unknown-linux-gnu
       os: linux
-      rust: 1.24.1
+      rust: 1.28.0
 
     # macOS
     - env: TARGET=x86_64-apple-darwin
@@ -46,7 +46,7 @@ matrix:
       rust: stable
     - env: TARGET=x86_64-apple-darwin
       os: osx
-      rust: 1.24.1
+      rust: 1.28.0
 
     # iOS
     - env: TARGET=x86_64-apple-ios
@@ -57,23 +57,12 @@ matrix:
       rust: stable
     - env: TARGET=x86_64-apple-ios
       os: osx
-      rust: 1.24.1
+      rust: 1.28.0
 
 install:
   - rustup self update
   - rustup target add $TARGET; true
 
-before_script:
-  - |
-      if [ "$TRAVIS_RUST_VERSION" == "1.24.1" ]; then
-        # Some of winit's transitive dependencies have made semver-compatible releases that actually
-        # break their compatibility with rust 1.24.1. We freeze them to their last compatible version to
-        # ensure that winit still compiles fine on this rust version.
-        cargo update
-        cargo update -p stb_truetype --precise 0.2.2
-        cargo update -p rusttype --precise 0.7.1
-      fi
-
 script:
   - cargo build --target $TARGET --verbose
   - cargo build --target $TARGET --features serde --verbose

CHANGELOG.md

@@ -9,6 +9,7 @@
 
 # Version 0.18.0 (2018-11-07)
 
+- **Breaking:** minimum supported Rust version increased to 1.28.0.
 - **Breaking:** `image` crate upgraded to 0.20. This is exposed as part of the `icon_loading` API.
 - On Wayland, pointer events will now provide the current modifiers state.
 - On Wayland, titles will now be displayed in the window header decoration.

README.md

@@ -41,6 +41,8 @@ fn main() {
 }
 ```
 
+Note that winit requires Rust 1.28.0 or later.
+
 ### Cargo Features
 
 Winit provides the following features, which can be enabled in your `Cargo.toml` file:

appveyor.yml

@@ -5,7 +5,7 @@ environment:
   - TARGET: x86_64-pc-windows-msvc
     CHANNEL: stable
   - TARGET: x86_64-pc-windows-msvc
-    CHANNEL: 1.24.1
+    CHANNEL: 1.28.0
   - TARGET: i686-pc-windows-msvc
     CHANNEL: nightly
   - TARGET: i686-pc-windows-gnu