flet-dev · FeodorFitsner · Sep 22, 2026 · Sep 21, 2026
diff --git a/src/serious_python/CHANGELOG.md b/src/serious_python/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 4.7.1
+
+* Fix macOS crashes during native scientific imports and NumPy operations by giving the asynchronous Python worker at least **8 MiB** of stack space, via `dart_bridge` 1.10.0. ([dart-bridge#21](https://github.com/flet-dev/dart-bridge/pull/21), [#85](https://github.com/flet-dev/serious-python/issues/85))
+* Update Pyodide to **0.27.8 / 0.29.5 / 314.0.7** for Python **3.12 / 3.13 / 3.14**, respectively. Wheel platform tags are unchanged. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+* Update the python-build snapshot to **20260921** and `dart_bridge` to **1.10.0**. CPython versions remain **3.12.14 / 3.13.15 / 3.14.7**. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+
 ## 4.7.0
 
 * **`DartBridge.hardExit(exitCode)`: terminate without running process teardown.** `dart:io`'s `exit()` runs the normal C teardown, which destroys the C++ statics inside every loaded CPython extension module. The interpreter lives on a detached thread that may still be running, so that teardown can fault it, giving a `SIGSEGV` on exit from an app that had already finished its work. `hardExit` skips it. Guard with `DartBridge.canHardExit`, which is `false` against a pre-1.9.0 `libdart_bridge` (the symbol is resolved softly, like `isPythonInitialized` and `signalDartSession`); `hardExit` is then a no-op and the caller should fall back to `exit()`.

diff --git a/src/serious_python/example/flask_example/pubspec.lock b/src/serious_python/example/flask_example/pubspec.lock
@@ -361,42 +361,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   shelf:
     dependency: transitive
     description:

diff --git a/src/serious_python/example/run_example/pubspec.lock b/src/serious_python/example/run_example/pubspec.lock
@@ -384,42 +384,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "4.4.1"
+    version: "4.7.1"
   shelf:
     dependency: transitive
     description:

diff --git a/src/serious_python/lib/src/python_versions.dart b/src/serious_python/lib/src/python_versions.dart
@@ -1,5 +1,5 @@
 // GENERATED by `dart run serious_python:gen_version_tables` from python-build's
-// manifest.json (release 20260908). Do not edit by hand — edit python-build's
+// manifest.json (release 20260921). Do not edit by hand — edit python-build's
 // manifest.json, cut a release, bump `pythonReleaseDate`, and regenerate.
 
 const pythonVersionEnvironmentVariable = "SERIOUS_PYTHON_VERSION";
@@ -10,8 +10,8 @@ const pyodideVersionEnvironmentVariable = "SERIOUS_PYTHON_PYODIDE_VERSION";
 const dartBridgeVersionEnvironmentVariable = "DART_BRIDGE_VERSION";
 
 /// python-build release the bundled runtimes come from (YYYYMMDD).
-const pythonReleaseDate = "20260908";
-const dartBridgeVersion = "1.9.0";
+const pythonReleaseDate = "20260921";
+const dartBridgeVersion = "1.10.0";
 const defaultPythonVersion = "3.14";
 
 class PythonRelease {
@@ -40,23 +40,23 @@ const pythonReleases = <String, PythonRelease>{
   "3.12": PythonRelease(
     standaloneVersion: "3.12.14",
     standaloneReleaseDate: "20260901",
-    pyodideVersion: "0.27.7",
+    pyodideVersion: "0.27.8",
     pyodidePlatformTag: "pyodide-2024.0-wasm32",
     androidAbis: ["arm64-v8a", "x86_64", "armeabi-v7a"],
     prerelease: false,
   ),
   "3.13": PythonRelease(
     standaloneVersion: "3.13.15",
     standaloneReleaseDate: "20260901",
-    pyodideVersion: "0.29.4",
+    pyodideVersion: "0.29.5",
     pyodidePlatformTag: "pyemscripten-2025.0-wasm32",
     androidAbis: ["arm64-v8a", "x86_64", "armeabi-v7a"],
     prerelease: false,
   ),
   "3.14": PythonRelease(
     standaloneVersion: "3.14.7",
     standaloneReleaseDate: "20260901",
-    pyodideVersion: "314.0.6",
+    pyodideVersion: "314.0.7",
     pyodidePlatformTag: "pyemscripten-2026.0-wasm32",
     androidAbis: ["arm64-v8a", "x86_64", "armeabi-v7a"],
     prerelease: false,

diff --git a/src/serious_python/pubspec.yaml b/src/serious_python/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python
 description: A cross-platform plugin for adding embedded Python runtime to your Flutter apps.
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 platforms:
   ios:

diff --git a/src/serious_python_android/CHANGELOG.md b/src/serious_python_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.7.1
+
+* Update the python-build snapshot to **20260921** and `dart_bridge` to **1.10.0**. CPython versions remain **3.12.14 / 3.13.15 / 3.14.7**. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+
 ## 4.7.0
 
 * Re-pins the bundled python-build snapshot to **20260908** and `dart_bridge` to **1.9.0**, whose `libdart_bridge.so` adds the `serious_python_hard_exit` export behind `DartBridge.hardExit`. No CPython versions change from 4.6.0 - **3.12.14 / 3.13.15 / 3.14.7** are unchanged.

diff --git a/src/serious_python_android/android/build.gradle.kts b/src/serious_python_android/android/build.gradle.kts
@@ -21,7 +21,7 @@ buildscript {
 }
 
 group = "com.flet.serious_python_android"
-version = "4.7.0"
+version = "4.7.1"
 
 rootProject.allprojects {
     repositories {

diff --git a/src/serious_python_android/android/python_versions.properties b/src/serious_python_android/android/python_versions.properties
@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260908). Do not edit by hand.
+# python-build manifest.json (release 20260921). Do not edit by hand.
 default_python_version=3.14
-dart_bridge_version=1.9.0
-python_build_release_date=20260908
+dart_bridge_version=1.10.0
+python_build_release_date=20260921
 3.12.full_version=3.12.14
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.15

diff --git a/src/serious_python_android/pubspec.yaml b/src/serious_python_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python_android
 description: Android implementation of the serious_python plugin
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 environment:
   sdk: ">=3.0.0 <4.0.0"

diff --git a/src/serious_python_darwin/CHANGELOG.md b/src/serious_python_darwin/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 4.7.1
+
+* Fix macOS crashes during native scientific imports and NumPy operations by giving the asynchronous Python worker at least **8 MiB** of stack space, via `dart_bridge` 1.10.0. ([dart-bridge#21](https://github.com/flet-dev/dart-bridge/pull/21), [#85](https://github.com/flet-dev/serious-python/issues/85))
+* Update the python-build snapshot to **20260921** and `dart_bridge` to **1.10.0**. CPython versions remain **3.12.14 / 3.13.15 / 3.14.7**. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+
 ## 4.7.0
 
 * Re-pins the bundled python-build snapshot to **20260908** and `dart_bridge` to **1.9.0**, whose `dart_bridge.xcframework` adds the `serious_python_hard_exit` export behind `DartBridge.hardExit`. No CPython or Pyodide versions change from 4.6.0 - **3.12.14 / 3.13.15 / 3.14.7** are unchanged, and the python-build release exists to publish the updated manifest.

diff --git a/src/serious_python_darwin/darwin/python_versions.properties b/src/serious_python_darwin/darwin/python_versions.properties
@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260908). Do not edit by hand.
+# python-build manifest.json (release 20260921). Do not edit by hand.
 default_python_version=3.14
-dart_bridge_version=1.9.0
-python_build_release_date=20260908
+dart_bridge_version=1.10.0
+python_build_release_date=20260921
 3.12.full_version=3.12.14
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.15

diff --git a/src/serious_python_darwin/darwin/serious_python_darwin.podspec b/src/serious_python_darwin/darwin/serious_python_darwin.podspec
@@ -4,7 +4,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'serious_python_darwin'
-  s.version          = '4.7.0'
+  s.version          = '4.7.1'
   s.summary          = 'A cross-platform plugin for adding embedded Python runtime to your Flutter apps.'
   s.description      = <<-DESC
   A cross-platform plugin for adding embedded Python runtime to your Flutter apps.

diff --git a/src/serious_python_darwin/pubspec.yaml b/src/serious_python_darwin/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python_darwin
 description: iOS and macOS implementations of the serious_python plugin
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 environment:
   # The Swift Package Manager build path needs Flutter 3.44 / Dart 3.11 (the

diff --git a/src/serious_python_linux/CHANGELOG.md b/src/serious_python_linux/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.7.1
+
+* Update the python-build snapshot to **20260921** and `dart_bridge` to **1.10.0**. CPython versions remain **3.12.14 / 3.13.15 / 3.14.7**. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+
 ## 4.7.0
 
 * Re-pins the bundled python-build snapshot to **20260908** and `dart_bridge` to **1.9.0**, whose `libdart_bridge.so` adds the `serious_python_hard_exit` export behind `DartBridge.hardExit`. No CPython versions change from 4.6.0 - **3.12.14 / 3.13.15 / 3.14.7** are unchanged.

diff --git a/src/serious_python_linux/linux/python_versions.properties b/src/serious_python_linux/linux/python_versions.properties
@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260908). Do not edit by hand.
+# python-build manifest.json (release 20260921). Do not edit by hand.
 default_python_version=3.14
-dart_bridge_version=1.9.0
-python_build_release_date=20260908
+dart_bridge_version=1.10.0
+python_build_release_date=20260921
 3.12.full_version=3.12.14
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.15

diff --git a/src/serious_python_linux/pubspec.yaml b/src/serious_python_linux/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python_linux
 description: Linux implementations of the serious_python plugin
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 environment:
   sdk: '>=3.1.3 <4.0.0'

diff --git a/src/serious_python_platform_interface/CHANGELOG.md b/src/serious_python_platform_interface/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.7.1
+
+* Align with the serious_python **4.7.1** release.
+
 ## 4.7.0
 
 * **`DartBridge.hardExit(exitCode)` / `DartBridge.canHardExit`**, binding `serious_python_hard_exit` from `dart_bridge` 1.9.0. `dart:io`'s `exit()` runs the normal C teardown, which destroys the C++ statics inside every loaded CPython extension module while the interpreter thread may still be running inside one of them; `hardExit` skips it. The symbol is resolved through the existing soft lookup, so an app built against an older `libdart_bridge` still loads, `canHardExit` is `false`, and the caller falls back to `exit()`. See the `serious_python` 4.7.0 notes.

diff --git a/src/serious_python_platform_interface/pubspec.yaml b/src/serious_python_platform_interface/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python_platform_interface
 description: A common platform interface for the serious_python plugin.
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 environment:
   sdk: ">=3.0.0 <4.0.0"

diff --git a/src/serious_python_windows/CHANGELOG.md b/src/serious_python_windows/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.7.1
+
+* Update the python-build snapshot to **20260921** and `dart_bridge` to **1.10.0**. CPython versions remain **3.12.14 / 3.13.15 / 3.14.7**. ([python-build#42](https://github.com/flet-dev/python-build/pull/42))
+
 ## 4.7.0
 
 * Re-pins the bundled python-build snapshot to **20260908** and `dart_bridge` to **1.9.0**, whose `dart_bridge.dll` adds the `serious_python_hard_exit` export behind `DartBridge.hardExit`. No CPython versions change from 4.6.0 - **3.12.14 / 3.13.15 / 3.14.7** are unchanged.

diff --git a/src/serious_python_windows/pubspec.yaml b/src/serious_python_windows/pubspec.yaml
@@ -2,7 +2,7 @@ name: serious_python_windows
 description: Windows implementations of the serious_python plugin
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/serious-python
-version: 4.7.0
+version: 4.7.1
 
 environment:
   sdk: '>=3.1.3 <4.0.0'

diff --git a/src/serious_python_windows/windows/python_versions.properties b/src/serious_python_windows/windows/python_versions.properties
@@ -1,8 +1,8 @@
 # GENERATED by `dart run serious_python:gen_version_tables` from
-# python-build manifest.json (release 20260908). Do not edit by hand.
+# python-build manifest.json (release 20260921). Do not edit by hand.
 default_python_version=3.14
-dart_bridge_version=1.9.0
-python_build_release_date=20260908
+dart_bridge_version=1.10.0
+python_build_release_date=20260921
 3.12.full_version=3.12.14
 3.12.android_abis=arm64-v8a,x86_64,armeabi-v7a
 3.13.full_version=3.13.15