diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 01b1f3d4..288e7644 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: x86_64-linux -> x86_64-macos
         run: cd ${{ matrix.project }} && zig build test -Dtarget=x86_64-macos.12...12-gnu
         env:
@@ -60,7 +60,7 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c.zip" -OutFile "C:\zig.zip"
+          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2439+c84f5a5f9.zip" -OutFile "C:\zig.zip"
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH "C:\zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c\"
@@ -97,7 +97,7 @@ jobs:
         run: |
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       # TODO: re-enable once we can use macos-12 reliably on GitHub actions (currently works, but
       #       takes a very long time to acquire macos-12 runners.)
       # - name: test
diff --git a/.github/workflows/m1_ci.yml b/.github/workflows/m1_ci.yml
index 8ec0b603..22d2e982 100644
--- a/.github/workflows/m1_ci.yml
+++ b/.github/workflows/m1_ci.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo rm -rf /usr/local/bin/zig /usr/local/bin/lib/
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2431+0e6285c8f.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: mach::test
         run: zig build test
         env:
diff --git a/README.md b/README.md
index db5afe32..06e9090e 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ Mach is still early stages, so far we have support for building from the followi
 
 Mach targets Zig nightly, binary releases are available at https://ziglang.org/download
 
-Currently tested with: zig-0.10.0-dev.2431+0e6285c8f
+Currently tested with: 0.10.0-dev.2439+c84f5a5f9
 
 ## Libraries
 
diff --git a/freetype/.github/workflows/ci.yml b/freetype/.github/workflows/ci.yml
index 3c671e5a..f3fe5554 100644
--- a/freetype/.github/workflows/ci.yml
+++ b/freetype/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: x86_64-linux -> aarch64-macos
         run: zig build test -Dtarget=aarch64-macos.12...12-gnu
       - name: test
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c.zip" -OutFile "C:\zig.zip"
+          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2439+c84f5a5f9.zip" -OutFile "C:\zig.zip"
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH "C:\zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c\"
@@ -41,6 +41,6 @@ jobs:
       - name: Setup Zig
         run: |
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: test
         run: zig build test
diff --git a/glfw/.github/workflows/ci.yml b/glfw/.github/workflows/ci.yml
index 6dcade8c..f819482f 100644
--- a/glfw/.github/workflows/ci.yml
+++ b/glfw/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: x86_64-linux -> x86_64-macos
         run: zig build test -Dtarget=x86_64-macos
         env:
@@ -48,7 +48,7 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c.zip" -OutFile "C:\zig.zip"
+          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2439+c84f5a5f9.zip" -OutFile "C:\zig.zip"
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH "C:\zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c\"
@@ -76,7 +76,7 @@ jobs:
         run: |
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: test
         run: zig build test
         env:
diff --git a/glfw/.github/workflows/m1_ci.yml b/glfw/.github/workflows/m1_ci.yml
index 52e6c068..0df9c1e5 100644
--- a/glfw/.github/workflows/m1_ci.yml
+++ b/glfw/.github/workflows/m1_ci.yml
@@ -24,7 +24,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo rm -rf /usr/local/bin/zig /usr/local/bin/lib/
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2431+0e6285c8f.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: test
         run: zig build test
         env:
diff --git a/gpu-dawn/.github/workflows/ci.yml b/gpu-dawn/.github/workflows/ci.yml
index f22b2144..cd11ea2a 100644
--- a/gpu-dawn/.github/workflows/ci.yml
+++ b/gpu-dawn/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (debug)
@@ -37,7 +37,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (release-fast)
@@ -58,7 +58,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (debug)
@@ -79,7 +79,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (release-fast)
@@ -102,7 +102,7 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c.zip" -OutFile "C:\zig.zip"
+          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2439+c84f5a5f9.zip" -OutFile "C:\zig.zip"
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH "C:\zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c\"
@@ -130,7 +130,7 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c.zip" -OutFile "C:\zig.zip"
+          Invoke-WebRequest -Uri "https://ziglang.org/builds/zig-windows-x86_64-0.10.0-dev.2439+c84f5a5f9.zip" -OutFile "C:\zig.zip"
           cd C:\
           7z x zig.zip
           Add-Content $env:GITHUB_PATH "C:\zig-windows-x86_64-0.10.0-dev.2017+a0a2ce92c\"
@@ -157,7 +157,7 @@ jobs:
         run: |
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (debug)
@@ -181,7 +181,7 @@ jobs:
         run: |
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2017+a0a2ce92c.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (release-fast)
diff --git a/gpu-dawn/.github/workflows/m1_ci.yml b/gpu-dawn/.github/workflows/m1_ci.yml
index 8420da9d..054781d2 100644
--- a/gpu-dawn/.github/workflows/m1_ci.yml
+++ b/gpu-dawn/.github/workflows/m1_ci.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo rm -rf /usr/local/bin/zig /usr/local/bin/lib/
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2431+0e6285c8f.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-aarch64-0.10.0-dev.2439+c84f5a5f9.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
         run: rm libs/mach-glfw && git clone https://github.com/hexops/mach-glfw libs/mach-glfw
       - name: install (debug)