diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 71feccb8..ce1e4d4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -102,14 +102,14 @@ jobs:
       - run: ${{ matrix.make_command }}
         shell: bash
 
-  # Builds for binary releases.
+  # Builds for binary releases. Run on tags starting with 'v'.
   # The Linux builds are performed on a "manylinux2010" container. This container
   # is designed such that that the resulting binary has minimal dependencies on system
   # libraries, and thus works on as many linuxes as possible. It's a thing from the
   # Python world, but generally useful.
   release-build:
     name: release-build - ${{ matrix.name }}
-    if: contains(github.ref, 'tags/v')
+    if: success() && contains(github.ref, 'tags/v')
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -144,8 +144,26 @@ jobs:
             OS_NAME: windows
     steps:
     - uses: actions/checkout@v2
+      with:
+        submodules: 'true'
+    - name: set version (which gets baked into wgpuGetVersion)
+      run: |
+          echo "WGPU_NATIVE_VERSION=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+      shell: bash
+    - name: Windows 64 deps
+      if: success() && matrix.OS_NAME == 'windows' && matrix.ARCH == 64
+      run: |
+          choco install -y --force llvm | exit 0
+          echo "LIBCLANG_PATH=C:\Program Files\LLVM\lib" >> $GITHUB_ENV
+      shell: bash
+    - name: Windows 32 deps
+      if: success() && matrix.OS_NAME == 'windows' && matrix.ARCH == 32
+      run: |
+          choco install -y --force --x86 llvm | exit 0
+          echo "LIBCLANG_PATH=C:\Program Files (x86)\LLVM\lib" >> $GITHUB_ENV
+      shell: bash
     - name: Docker build
-      if: success() && matrix.OS_NAME == 'Linux'
+      if: success() && matrix.OS_NAME == 'linux'
       env:
         IMAGE: ${{ matrix.IMAGE }}
         RUST_TOOLCHAIN: ${{ matrix.RUST_TOOLCHAIN }}
@@ -158,14 +176,14 @@ jobs:
             curl --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain none && \
             rustup toolchain install --no-self-update $RUST_TOOLCHAIN && \
             rustup default $RUST_TOOLCHAIN && \
-            yum install zip -y && \
+            yum install zip clang -y && \
             make package")
           docker start -ai $CID
           mkdir -p dist
           docker cp $CID:/tmp/wgpu-native/dist/. dist/.
           docker rm $CID
     - name: Host build
-      if: success() && matrix.OS_NAME != 'Linux'
+      if: success() && matrix.OS_NAME != 'linux'
       env:
         RUST_TOOLCHAIN: ${{ matrix.RUST_TOOLCHAIN }}
         MACOSX_DEPLOYMENT_TARGET: ${{ matrix.MACOSX_DEPLOYMENT_TARGET }}
@@ -186,6 +204,7 @@ jobs:
           mv dist/*release*.zip ./dist/wgpu-$OS_NAME-$ARCH-release.zip
       shell: bash
     - name: Publish
+      if: success()
       uses: actions/upload-artifact@v2
       with:
         path: dist
@@ -242,6 +261,10 @@ jobs:
     if: success() && contains(github.ref, 'tags/v')
     steps:
     - uses: actions/checkout@v2
+    - name: set version (which gets used as release name)
+      run: |
+          echo "WGPU_NATIVE_VERSION=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+      shell: bash
     - name: Download assets
       uses: actions/download-artifact@v1.0.0
       with:
@@ -251,16 +274,13 @@ jobs:
         GITHUB_SHA: ${{ github.sha }}
       run: |
         echo $GITHUB_SHA > dist/commit-sha
-    - name: Get version from git ref
-      id: get_version
-      run: echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}
     - name: Create release
       uses: actions/create-release@v1
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        tag_name: ${{ steps.get_version.outputs.VERSION }}
-        release_name: Release ${{ steps.get_version.outputs.VERSION }}
+        tag_name: ${{ env.WGPU_NATIVE_VERSION }}
+        release_name: ${{ env.WGPU_NATIVE_VERSION }}
         body: |
             Autogenerated binary modules.
             The Linux builds are built on CentOS 6 (glibc 2.12, see [Manylinux2010](https://www.python.org/dev/peps/pep-0571/)).
@@ -271,6 +291,6 @@ jobs:
       # Move back to official action after fix https://github.com/actions/upload-release-asset/issues/4
       uses: AButler/upload-release-assets@v2.0
       with:
-        release-tag: ${{ steps.get_version.outputs.VERSION }}
+        release-tag: ${{ env.WGPU_NATIVE_VERSION }}
         files: 'dist/*.zip;dist/commit-sha'
         repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Makefile b/Makefile
index bb785656..6bab6925 100644
--- a/Makefile
+++ b/Makefile
@@ -61,9 +61,9 @@ package: lib-native lib-native-release
 		ARCHIVE=wgpu-$$RELEASE-$(OS_NAME)-$(GIT_TAG).zip; \
 		rm -f dist/$$ARCHIVE; \
 		if [ $(OS_NAME) = windows ]; then \
-			7z a -tzip dist/$$ARCHIVE ./target/$$RELEASE/$(LIB_NAME).$(LIB_EXTENSION) ./target/$$RELEASE/$(LIB_NAME).$(LIB_EXTENSION).lib ./ffi/*.h ./dist/commit-sha; \
+			7z a -tzip dist/$$ARCHIVE ./target/$$RELEASE/$(LIB_NAME).$(LIB_EXTENSION) ./target/$$RELEASE/$(LIB_NAME).$(LIB_EXTENSION).lib ./ffi/*.h ./ffi/webgpu-headers/*.h ./dist/commit-sha; \
 		else \
-			zip -j dist/$$ARCHIVE target/$$RELEASE/lib$(LIB_NAME).$(LIB_EXTENSION) ffi/*.h dist/commit-sha; \
+			zip -j dist/$$ARCHIVE target/$$RELEASE/lib$(LIB_NAME).$(LIB_EXTENSION) ffi/*.h ./ffi/webgpu-headers/*.h dist/commit-sha; \
 		fi; \
 	done
 
diff --git a/ffi/wgpu.h b/ffi/wgpu.h
index 2bad019c..32e8aaf8 100644
--- a/ffi/wgpu.h
+++ b/ffi/wgpu.h
@@ -35,6 +35,8 @@ void wgpuSetLogCallback(WGPULogCallback callback);
 
 void wgpuSetLogLevel(WGPULogLevel level);
 
+uint32_t wgpuGetVersion(void);
+
 void wgpuRenderPassEncoderSetPushConstants(WGPURenderPassEncoder encoder, WGPUShaderStage stages, uint32_t offset, uint32_t sizeBytes, void* const data);
 
 #endif 
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 8ad481d7..7decde6e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -260,7 +260,7 @@ unsafe fn map_surface(
         use raw_window_handle::unix::XlibHandle;
 
         return wgpu_create_surface(raw_window_handle::RawWindowHandle::Xlib(XlibHandle {
-            window: x11.window as u64,
+            window: x11.window as _,
             display: x11.display as *mut _,
             ..XlibHandle::empty()
         }));
diff --git a/src/logging.rs b/src/logging.rs
index d5c1680c..2c39aa00 100644
--- a/src/logging.rs
+++ b/src/logging.rs
@@ -2,6 +2,32 @@ use crate::{map_enum, native};
 use log::{Level, LevelFilter, Metadata, Record};
 use std::ffi::CString;
 
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpuGetVersion() -> std::os::raw::c_uint {
+    // Take the string of WGPU_NATIVE_VERSION, strip any leading v's, split on dots,
+    // and map the first 4 parts to the bytes of an uint32, consuming MSB first.
+    // e.g. "v4.1"      -> 0x04010000
+    //      "5.4.3.2.1" -> 0x05040302
+    let static_str = match option_env!("WGPU_NATIVE_VERSION") {
+        Some (s) => s.trim().trim_start_matches("v"),
+        None => "",
+    };
+    let mut version: u32 = 0;
+    let mut index: i32 = 0;
+    for part in static_str.split(".") {
+        let versionpart: u32 = match part.parse::<u32>() {
+            Ok(n) => n,
+            Err(_e) => 0,
+        };
+        let shift : i32 = 8 * (3 - index);
+        if shift < 0 {break;}
+        version += versionpart << shift;
+        index += 1;
+    }
+    version
+}
+
 struct Logger {
     callback: native::WGPULogCallback,
     initialized: bool,