From: Brett Cannon <brett@python.org>
Date: Wed, 22 Oct 2025 21:34:37 +0000 (-0700)
Subject: GH-140475: Support WASI SDK 25 (#140477)
X-Git-Tag: v3.15.0a2~349
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5f4299f138ef46378dc5766b33de7eb8937392b;p=thirdparty%2FPython%2Fcpython.git

GH-140475: Support WASI SDK 25 (#140477)

As well, bump the version of Wasmtime used in CI.
---

diff --git a/.github/workflows/reusable-wasi.yml b/.github/workflows/reusable-wasi.yml
index 6beb91e66d40..a4673d74cbb1 100644
--- a/.github/workflows/reusable-wasi.yml
+++ b/.github/workflows/reusable-wasi.yml
@@ -16,8 +16,8 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 60
     env:
-      WASMTIME_VERSION: 22.0.0
-      WASI_SDK_VERSION: 24
+      WASMTIME_VERSION: 38.0.2
+      WASI_SDK_VERSION: 25
       WASI_SDK_PATH: /opt/wasi-sdk
       CROSS_BUILD_PYTHON: cross-build/build
       CROSS_BUILD_WASI: cross-build/wasm32-wasip1
diff --git a/Misc/NEWS.d/next/Build/2025-10-22-12-44-07.gh-issue-140475.OhzQbR.rst b/Misc/NEWS.d/next/Build/2025-10-22-12-44-07.gh-issue-140475.OhzQbR.rst
new file mode 100644
index 000000000000..b41390247618
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2025-10-22-12-44-07.gh-issue-140475.OhzQbR.rst
@@ -0,0 +1 @@
+Support WASI SDK 25.
diff --git a/Tools/wasm/wasi/__main__.py b/Tools/wasm/wasi/__main__.py
index b2f643ddbfc2..3aedb5e97b7c 100644
--- a/Tools/wasm/wasi/__main__.py
+++ b/Tools/wasm/wasi/__main__.py
@@ -31,7 +31,7 @@ LOCAL_SETUP_MARKER = (
     b"# Required to statically build extension modules."
 )
 
-WASI_SDK_VERSION = 24
+WASI_SDK_VERSION = 25
 
 WASMTIME_VAR_NAME = "WASMTIME"
 WASMTIME_HOST_RUNNER_VAR = f"{{{WASMTIME_VAR_NAME}}}"