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Flutter 3.44.0 for Termux ARM64

Flutter 3.44.0 / Dart 3.12 for Android-bionic ARM64 hosts.

This release updates the Termux Flutter SDK package to Flutter 3.44.0 and fixes the new Dart/Flutter Tools/Gradle assumptions that broke Android-as-host environments.

Package

Item Value
Package flutter_3.44.0_aarch64.deb
Size 666,366,556 bytes (~636 MiB)
SHA256 b8af08d26ee4ae4b3dcf1aab4ee6b05965529587ddf1bc9b936b48b5f01f9846
Flutter 3.44.0
Flutter Tools Dart 3.12.1
Dart VM post-install dartvm resolves to Dart 3.12.1 (android_arm64)
Target host Termux / Android bionic / ARM64

Install

pkg update -y
pkg install -y x11-repo wget openjdk-21
wget https://github.com/ImL1s/termux-flutter-wsl/releases/download/v3.44.0/flutter_3.44.0_aarch64.deb
dpkg -i flutter_3.44.0_aarch64.deb
apt --fix-broken install -y
bash $PREFIX/share/flutter/post_install.sh
source $PREFIX/etc/profile.d/flutter.sh
flutter doctor -v

Verified

Device smoke on Samsung SM-X716B / Android 16 / ARM64 Termux:

Command Result
flutter --version ✅ Flutter 3.44.0
dart --version ✅ Dart 3.12.1 on android_arm64
dartvm --version ✅ Dart 3.12.0 on linux_arm64
flutter doctor -v ✅ completes; unknown channel / no connected device are expected warnings
flutter create --platforms=android,linux ✅
flutter build apk --release --target-platform android-arm64 --no-tree-shake-icons ✅ ARM64 APK produced
flutter build linux --release ✅ ARM64 Linux bundle produced
deb artifact validator ✅ dart, dartvm, dartaotruntime executable

Highlights

Flutter 3.44 / Dart 3.12 update

  • Updated package metadata and patches for Flutter 3.44.0.
  • Handles Dart 3.10+ tool split by packaging both CLI dart and engine dartvm/dartaotruntime.
  • Keeps Flutter CLI on Termux JIT Dart while preserving engine VM tools for snapshots.

Android/Termux host fixes

Flutter Tools still assumes host OS is macOS/Linux/Windows. On Termux, Dart reports Platform.operatingSystem == "android". This release maps Android host lookups to Linux ARM64 artifacts for:

  • font-subset artifacts
  • engine artifact host platform lookup
  • current host platform detection
  • Chrome/device-discovery lookup paths

APK build fixes

  • ARM64-only APK default remains enforced.
  • post_install.sh now provides Flutter 3.44's PLATFORM_ABI_LIST in the ARM64-only Gradle plugin template.
  • Stale Flutter Gradle included-build caches are cleared after plugin source changes.
  • NDK wrapper setup detects current clang runtime paths and patches CMake host-tag assumptions.

Linux desktop build fixes

  • flutter build linux is allowed on Termux host.
  • tool_backend.sh shebang is rewritten for Termux.
  • Projects should add set(CMAKE_SYSTEM_NAME Linux) at the top of linux/CMakeLists.txt.

Maintainer automation

  • GitHub-hosted PR CI now runs lightweight repository sanity checks without touching self-hosted hardware.
  • Manual self-hosted workflows cover the full .deb build and Windows+ADB Termux tablet smoke test.
  • scripts/ci/check_repo.py, scripts/device/run_termux_smoke.ps1, and docs/CI_CD.md document and enforce the release/device validation contract.

Required per-project Android settings

# android/gradle.properties
android.aapt2FromMavenOverride=/data/data/com.termux/files/usr/bin/aapt2
// android/app/build.gradle.kts
android {
    compileSdk = 34
    defaultConfig {
        targetSdk = 34
        ndk { abiFilters += listOf("arm64-v8a") }
    }
}

Build with:

flutter build apk --release --target-platform android-arm64 --no-tree-shake-icons

Known limitations

  • Android APK targets are ARM64-only (android-arm64 / arm64-v8a).
  • flutter run for Android requires ADB pairing/connection from inside Termux.
  • Some Flutter doctor warnings about unknown channel/source are expected for this repackaged SDK.
  • Termux aapt2 currently requires projects to compile against API 34 even though Android SDK Platform 36 is installed for Flutter metadata compatibility.

Previous releases

v3.41.5 (2026-04-13)

  • Flutter SDK upgraded to 3.41.5 (Dart 3.11.3).
  • Added flutter build linux support.
  • Fixed post-install sed delimiter and flutter_tools snapshot invalidation.

v3.35.0 (2026-01-07)

  • First public release.
  • APK build and hot reload support for ARM64 Termux.