diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6a99e4671d..515c125a4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,7 +36,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust_version: [1.65.0, stable, nightly]
+        rust_version: [1.70.0, stable, nightly]
         platform:
           - { target: x86_64-pc-windows-msvc,   os: windows-latest,  }
           - { target: i686-pc-windows-msvc,     os: windows-latest,  }
@@ -54,10 +54,10 @@ jobs:
           - { target: x86_64-apple-darwin,      os: macos-latest,    }
         exclude:
           # Android is tested on stable-3
-          - rust_version: '1.65.0'
+          - rust_version: '1.70.0'
             platform: { target: aarch64-linux-android,    os: ubuntu-latest, cmd: 'apk --'   }
         include:
-          - rust_version: '1.69.0'
+          - rust_version: '1.70.0'
             platform: { target: aarch64-linux-android,    os: ubuntu-latest, cmd: 'apk --'   }
 
 
@@ -112,6 +112,6 @@ jobs:
 
     - name: Lint with clippy
       shell: bash
-      if: (matrix.rust_version == '1.65.0') && !contains(matrix.platform.options, '--no-default-features')
+      if: (matrix.rust_version == '1.70.0') && !contains(matrix.platform.options, '--no-default-features')
       run: cargo clippy --workspace --all-targets --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES -- -Dwarnings
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f458069b7a..97e883e730 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Unreleased
 
+- Bump MSRV from `1.65` to `1.70`.
+
 # Version 0.31.3
 
 - Change `Surface` to be `Send`. This makes it consistent with the context, so now they are both `Send` but not `Sync`.
diff --git a/glutin-winit/Cargo.toml b/glutin-winit/Cargo.toml
index a633df2426..bc78d635d9 100644
--- a/glutin-winit/Cargo.toml
+++ b/glutin-winit/Cargo.toml
@@ -8,6 +8,7 @@ license = "MIT"
 readme = "README.md"
 repository = "https://github.com/rust-windowing/glutin"
 edition = "2021"
+rust-version = "1.70.0"
 
 [features]
 default = ["egl", "glx", "x11", "wayland", "wgl"]
diff --git a/glutin-winit/build.rs b/glutin-winit/build.rs
index 32078de541..c64860b7c5 100644
--- a/glutin-winit/build.rs
+++ b/glutin-winit/build.rs
@@ -23,4 +23,19 @@ fn main() {
         wgl_backend: { all(feature = "wgl", windows, not(wasm_platform)) },
         cgl_backend: { all(macos_platform, not(wasm_platform)) },
     }
+
+    println!("cargo:rustc-check-cfg=cfg(android_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wasm_platform)");
+    println!("cargo:rustc-check-cfg=cfg(macos_platform)");
+    println!("cargo:rustc-check-cfg=cfg(ios_platform)");
+    println!("cargo:rustc-check-cfg=cfg(apple)");
+    println!("cargo:rustc-check-cfg=cfg(free_unix)");
+
+    println!("cargo:rustc-check-cfg=cfg(x11_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wayland_platform)");
+
+    println!("cargo:rustc-check-cfg=cfg(egl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(glx_backend)");
+    println!("cargo:rustc-check-cfg=cfg(wgl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(cgl_backend)");
 }
diff --git a/glutin/Cargo.toml b/glutin/Cargo.toml
index 8706df188c..747a4afbbd 100644
--- a/glutin/Cargo.toml
+++ b/glutin/Cargo.toml
@@ -8,7 +8,7 @@ license = "Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/rust-windowing/glutin"
 documentation = "https://docs.rs/glutin"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 
 [features]
diff --git a/glutin/build.rs b/glutin/build.rs
index c8eab1b931..ceaa1e0a84 100644
--- a/glutin/build.rs
+++ b/glutin/build.rs
@@ -21,4 +21,19 @@ fn main() {
         wgl_backend: { all(feature = "wgl", windows, not(wasm_platform)) },
         cgl_backend: { all(macos_platform, not(wasm_platform)) },
     }
+
+    println!("cargo:rustc-check-cfg=cfg(android_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wasm_platform)");
+    println!("cargo:rustc-check-cfg=cfg(macos_platform)");
+    println!("cargo:rustc-check-cfg=cfg(ios_platform)");
+    println!("cargo:rustc-check-cfg=cfg(apple)");
+    println!("cargo:rustc-check-cfg=cfg(free_unix)");
+
+    println!("cargo:rustc-check-cfg=cfg(x11_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wayland_platform)");
+
+    println!("cargo:rustc-check-cfg=cfg(egl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(glx_backend)");
+    println!("cargo:rustc-check-cfg=cfg(wgl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(cgl_backend)");
 }
diff --git a/glutin_egl_sys/Cargo.toml b/glutin_egl_sys/Cargo.toml
index 1130acfc7c..a7c46bbc7d 100644
--- a/glutin_egl_sys/Cargo.toml
+++ b/glutin_egl_sys/Cargo.toml
@@ -6,7 +6,7 @@ description = "The egl bindings for glutin"
 repository = "https://github.com/rust-windowing/glutin"
 license = "Apache-2.0"
 readme = "README.md"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 
 [build-dependencies]
diff --git a/glutin_examples/Cargo.toml b/glutin_examples/Cargo.toml
index 2da256a749..40b3c7de1d 100644
--- a/glutin_examples/Cargo.toml
+++ b/glutin_examples/Cargo.toml
@@ -6,7 +6,7 @@ description = "Examples for glutin"
 repository = "https://github.com/rust-windowing/glutin"
 license = "Apache-2.0"
 readme = "../README.md"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 publish = false
 
diff --git a/glutin_examples/build.rs b/glutin_examples/build.rs
index 2fbd6cc476..c109f8ee73 100644
--- a/glutin_examples/build.rs
+++ b/glutin_examples/build.rs
@@ -29,6 +29,21 @@ fn main() {
         cgl_backend: { all(macos_platform, not(wasm_platform)) },
     }
 
+    println!("cargo:rustc-check-cfg=cfg(android_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wasm_platform)");
+    println!("cargo:rustc-check-cfg=cfg(macos_platform)");
+    println!("cargo:rustc-check-cfg=cfg(ios_platform)");
+    println!("cargo:rustc-check-cfg=cfg(apple)");
+    println!("cargo:rustc-check-cfg=cfg(free_unix)");
+
+    println!("cargo:rustc-check-cfg=cfg(x11_platform)");
+    println!("cargo:rustc-check-cfg=cfg(wayland_platform)");
+
+    println!("cargo:rustc-check-cfg=cfg(egl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(glx_backend)");
+    println!("cargo:rustc-check-cfg=cfg(wgl_backend)");
+    println!("cargo:rustc-check-cfg=cfg(cgl_backend)");
+
     let dest = PathBuf::from(&env::var("OUT_DIR").unwrap());
 
     println!("cargo:rerun-if-changed=build.rs");
diff --git a/glutin_gles2_sys/Cargo.toml b/glutin_gles2_sys/Cargo.toml
index be68ecbde1..a8c5d99f62 100644
--- a/glutin_gles2_sys/Cargo.toml
+++ b/glutin_gles2_sys/Cargo.toml
@@ -6,7 +6,7 @@ description = "The gles2 bindings for glutin"
 repository = "https://github.com/rust-windowing/glutin"
 license = "Apache-2.0"
 readme = "README.md"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 
 [build-dependencies]
diff --git a/glutin_glx_sys/Cargo.toml b/glutin_glx_sys/Cargo.toml
index 92a5b88167..7262cf1988 100644
--- a/glutin_glx_sys/Cargo.toml
+++ b/glutin_glx_sys/Cargo.toml
@@ -6,7 +6,7 @@ description = "The glx bindings for glutin"
 repository = "https://github.com/rust-windowing/glutin"
 license = "Apache-2.0"
 readme = "README.md"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 
 [build-dependencies]
diff --git a/glutin_wgl_sys/Cargo.toml b/glutin_wgl_sys/Cargo.toml
index c198513ecc..9b9a29eb9f 100644
--- a/glutin_wgl_sys/Cargo.toml
+++ b/glutin_wgl_sys/Cargo.toml
@@ -6,7 +6,7 @@ description = "The wgl bindings for glutin"
 repository = "https://github.com/rust-windowing/glutin"
 license = "Apache-2.0"
 readme = "README.md"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 edition = "2021"
 
 [build-dependencies]