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Bump Android minimum API level from 21 to 24 #126838

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2590cd0
Raise Android minimum API to 24
simonrozsival Apr 13, 2026
18fef16
Remove Android 21-23 ifaddrs workaround
simonrozsival Apr 13, 2026
58e5bf6
Remove Android 21-23 SSL workarounds
simonrozsival Apr 13, 2026
d150ef8
Update Android minimum API references
simonrozsival Apr 13, 2026
ad108f5
Require Android API 24 cert APIs
simonrozsival Apr 13, 2026
57db7b2
Add note about Android Q
simonrozsival Apr 13, 2026
7c91e8d
Fix Android cert reason mapping
simonrozsival Apr 13, 2026
46f9e5f
[android] Update NativeAOT Android target triples to API 24
simonrozsival Apr 14, 2026
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2 changes: 1 addition & 1 deletion Directory.Build.props
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Expand Up @@ -39,7 +39,7 @@
- src/tasks/Crossgen2Tasks/Microsoft.NET.CrossGen.targets
- https://github.com/dotnet/sdk repo > src/Installer/redist-installer/targets/GeneratePKG.targets
-->
<AndroidApiLevelMin>21</AndroidApiLevelMin>
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@MichalStrehovsky MichalStrehovsky Apr 13, 2026

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Above is a list of all the files that might be hardcoding 21, this PR is missing some.

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@MichalStrehovsky MichalStrehovsky Apr 15, 2026

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The offsets-tool.py still has 21

<AndroidApiLevelMin>24</AndroidApiLevelMin>
<iOSVersionMin>13.0</iOSVersionMin>
<tvOSVersionMin>13.0</tvOSVersionMin>
<macOSVersionMin>14.0</macOSVersionMin>
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2 changes: 1 addition & 1 deletion docs/workflow/building/coreclr/android.md
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Expand Up @@ -44,7 +44,7 @@ Supported target architectures:

- Download and install [OpenJDK 23](https://openjdk.org/projects/jdk/23/)
- Download and install [Android Studio](https://developer.android.com/studio/install) and the following:
- Android SDK (minimum supported API level is 21)
- Android SDK (minimum supported API level is 24)
- Android NDK r27c

> [!NOTE]
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2 changes: 1 addition & 1 deletion eng/native/build-commons.sh
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Expand Up @@ -101,7 +101,7 @@ build_native()

if [[ "$targetOS" == android || "$targetOS" == linux-bionic ]]; then
# Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository rooot
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Comment typo: "repository rooot" should be "repository root".

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# Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository rooot
# Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository root

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local ANDROID_API_LEVEL=21
local ANDROID_API_LEVEL=24
if [[ -z "$ANDROID_NDK_ROOT" ]]; then
echo "Error: You need to set the ANDROID_NDK_ROOT environment variable pointing to the Android NDK root."
exit 1
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2 changes: 1 addition & 1 deletion eng/native/gen-buildsys.cmd
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Expand Up @@ -76,7 +76,7 @@ if /i "%__Arch%" == "wasm" (

if /i "%__Os%" == "android" (
:: Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository rooot
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Comment typo: "repository rooot" should be "repository root".

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:: Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository rooot
:: Keep in sync with $(AndroidApiLevelMin) in Directory.Build.props in the repository root

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set __ANDROID_API_LEVEL=21
set __ANDROID_API_LEVEL=24
if "%ANDROID_NDK_ROOT%" == "" (
echo Error: You need to set the ANDROID_NDK_ROOT environment variable pointing to the Android NDK root.
exit /B 1
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4 changes: 2 additions & 2 deletions src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.Unix.targets
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Expand Up @@ -48,10 +48,10 @@ The .NET Foundation licenses this file to you under the MIT license.
<CrossCompileArch Condition="$(CrossCompileRid.EndsWith('-arm'))">armv7</CrossCompileArch>

<CrossCompileAbi>gnu</CrossCompileAbi>
<CrossCompileAbi Condition="$(CrossCompileRid.StartsWith('linux-bionic-')) or $(CrossCompileRid.StartsWith('android-'))">android21</CrossCompileAbi>
<CrossCompileAbi Condition="$(CrossCompileRid.StartsWith('linux-bionic-')) or $(CrossCompileRid.StartsWith('android-'))">android24</CrossCompileAbi>
<CrossCompileAbi Condition="$(CrossCompileRid.StartsWith('linux-musl-')) or $(CrossCompileRid.StartsWith('alpine-'))">musl</CrossCompileAbi>
<CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-arm'">gnueabihf</CrossCompileAbi>
<CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-bionic-arm' or '$(CrossCompileRid)' == 'android-arm'">androideabi21</CrossCompileAbi>
<CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-bionic-arm' or '$(CrossCompileRid)' == 'android-arm'">androideabi24</CrossCompileAbi>
<CrossCompileAbi Condition="'$(CrossCompileRid)' == 'linux-musl-arm'">musleabihf</CrossCompileAbi>
</PropertyGroup>

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2 changes: 1 addition & 1 deletion src/coreclr/nativeaot/docs/android-bionic.md
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Expand Up @@ -4,7 +4,7 @@ Starting with .NET 8 Preview 7, it's possible to build shared libraries and comm

Not a full Android experience is available - it's only possible to publish for two Bionic RID: linux-bionic-arm64 and linux-bionic-x64. Publishing for Android RIDs (android-arm64/android-x64) is not possible. This limited experience corresponds to building with [Android NDK](https://developer.android.com/ndk) from Native code - the limitations are similar. Interop with Java needs to be done manually through JNI, if necessary.

The minimum API level is 21 at the time of writing the document, but search for AndroidApiLevelMin in this repo for more up-to-date information.
The minimum API level has been raised to 24 in .NET 11. Search for `AndroidApiLevelMin` in this repo for the current value.

To build for Bionic:

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2 changes: 1 addition & 1 deletion ...aries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/OperatingSystemTests.cs
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Expand Up @@ -107,7 +107,7 @@ public static void IsOSPlatformVersionAtLeast_InvalidArgs_Throws()
public static void TestIsOSVersionAtLeast_Android() => TestIsOSVersionAtLeast("Android");

[Fact, PlatformSpecific(TestPlatforms.Android)]
public static void TestIsOSVersionAtLeast_Android_21() => Assert.True(OperatingSystem.IsAndroidVersionAtLeast(21)); // 21 is our min supported version
public static void TestIsOSVersionAtLeast_Android_24() => Assert.True(OperatingSystem.IsAndroidVersionAtLeast(24)); // 24 is our min supported version
Comment on lines 109 to +110
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@jonathanpeppers jonathanpeppers Apr 13, 2026 •
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This test should actually still pass unchanged, can you introduce a new test and keep the old one? (or use [Theory] with parameters?)

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@simonrozsival simonrozsival Apr 13, 2026

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Sure, we could do that, but I don't see a value of such test. If anything, we might want to completely drop this test.


[Fact, PlatformSpecific(TestPlatforms.iOS)]
public static void TestIsOSPlatform_IOS() => TestIsOSPlatform("iOS", OperatingSystem.IsIOS);
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2 changes: 1 addition & 1 deletion src/mono/msbuild/android/build/AndroidBuild.targets
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Expand Up @@ -137,7 +137,7 @@
</PropertyGroup>

<PropertyGroup>
<AndroidLibraryMinApiLevel Condition="'$(AndroidLibraryMinApiLevel)' == ''">21</AndroidLibraryMinApiLevel>
<AndroidLibraryMinApiLevel Condition="'$(AndroidLibraryMinApiLevel)' == ''">24</AndroidLibraryMinApiLevel>
</PropertyGroup>

<ItemGroup>
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8 changes: 0 additions & 8 deletions src/native/libs/System.Native/CMakeLists.txt
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Expand Up @@ -116,14 +116,6 @@ include(${CMAKE_CURRENT_LIST_DIR}/extra_libs.cmake)
set(NATIVE_LIBS_EXTRA)
append_extra_system_libs(NATIVE_LIBS_EXTRA)

if (CLR_CMAKE_TARGET_ANDROID AND NOT HAVE_GETIFADDRS)
add_definitions(-DANDROID_GETIFADDRS_WORKAROUND)
add_compile_options(-Wno-gnu-zero-variadic-macro-arguments)

list (APPEND NATIVE_LIBS_EXTRA -llog)
list (APPEND NATIVE_SOURCES pal_ifaddrs.c)
endif ()

if (GEN_SHARED_LIB)
add_library(System.Native
SHARED
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