diff --git a/ManagedWimLib.Tests/TestSetup.cs b/ManagedWimLib.Tests/TestSetup.cs
index 3b6ab1f..b57dfc6 100644
--- a/ManagedWimLib.Tests/TestSetup.cs
+++ b/ManagedWimLib.Tests/TestSetup.cs
@@ -42,16 +42,24 @@ public static void Init(TestContext context)
             BaseDir = Path.GetFullPath(Path.Combine(TestHelper.GetProgramAbsolutePath(), "..", "..", ".."));
             SampleDir = Path.Combine(BaseDir, "Samples");
 
+            const string x64 = "x64";
+            const string x86 = "x86";
+            const string armhf = "armhf";
+            const string arm64 = "arm64";
+
+            const string dllName = "libwim-15.dll";
+            const string soName = "libwim.so";
+
             string libPath = null;
             if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
             {
                 switch (RuntimeInformation.ProcessArchitecture)
                 {
                     case Architecture.X86:
-                        libPath = Path.Combine("x86", "libwim-15.dll");
+                        libPath = Path.Combine(x86, dllName);
                         break;
                     case Architecture.X64:
-                        libPath = Path.Combine("x64", "libwim-15.dll");
+                        libPath = Path.Combine(x64, dllName);
                         break;
                 }
             }
@@ -60,7 +68,13 @@ public static void Init(TestContext context)
                 switch (RuntimeInformation.ProcessArchitecture)
                 {
                     case Architecture.X64:
-                        libPath = Path.Combine("x64", "libwim.so");
+                        libPath = Path.Combine(x64, soName);
+                        break;
+                    case Architecture.Arm:
+                        libPath = Path.Combine(armhf, soName);
+                        break;
+                    case Architecture.Arm64:
+                        libPath = Path.Combine(arm64, soName);
                         break;
                 }
             }
diff --git a/ManagedWimLib/ManagedWimLib.csproj b/ManagedWimLib/ManagedWimLib.csproj
index 5a24b83..948b827 100644
--- a/ManagedWimLib/ManagedWimLib.csproj
+++ b/ManagedWimLib/ManagedWimLib.csproj
@@ -9,13 +9,13 @@
 Supports Windows and Linux.</Description>
     <Copyright>Copyright (c) 2018 Hajin Jang</Copyright>
     <Company>Joveler</Company>
-    <PackageReleaseNotes>- Add .Net Framework 4.5.1 target</PackageReleaseNotes>
+    <PackageReleaseNotes>- Support armhf, arm64 on linux</PackageReleaseNotes>
     <PackageLicenseUrl>https://github.com/ied206/ManagedWimLib/blob/master/LICENSE</PackageLicenseUrl>
     <PackageProjectUrl>https://github.com/ied206/ManagedWimLib</PackageProjectUrl>
     <RepositoryUrl></RepositoryUrl>
     <PackageTags>wim wimlib pinvoke interop</PackageTags>
     <PackageIconUrl>https://raw.githubusercontent.com/ied206/ManagedWimLib/master/Image/Logo.png</PackageIconUrl>
-    <Version>1.2.1</Version>
+    <Version>1.2.2</Version>
   </PropertyGroup>
   <Import Project="$(MSBuildProjectDirectory)\ManagedWimLib.targets" />
 </Project>
diff --git a/ManagedWimLib/ManagedWimLib.nuspec b/ManagedWimLib/ManagedWimLib.nuspec
index 845d86e..ec76094 100644
--- a/ManagedWimLib/ManagedWimLib.nuspec
+++ b/ManagedWimLib/ManagedWimLib.nuspec
@@ -3,7 +3,7 @@
   <metadata>
     <id>ManagedWimLib</id>
     <title>ManagedWimLib</title>
-    <version>1.2.1</version>
+    <version>1.2.2</version>
     <owners>ied206</owners>
     <authors>Eric Biggers, Hajin Jang</authors>
     <licenseUrl>https://github.com/ied206/ManagedWimLib/blob/master/LICENSE</licenseUrl> 
@@ -13,7 +13,7 @@
     <description>C# pinvoke library for wimlib.
 Supports Windows and Linux.</description>
     <summary>C# pinvoke library for wimlib.</summary>
-    <releaseNotes>- Add .Net Framework 4.5.1 target</releaseNotes>
+    <releaseNotes>- Support armhf, arm64 on linux</releaseNotes>
     <copyright>Copyright (c) 2018 Hajin Jang</copyright>
     <tags>wim wimlib pinvoke interop</tags>
     <dependencies>
diff --git a/ManagedWimLib/Precompiled/arm64/libwim.so b/ManagedWimLib/Precompiled/arm64/libwim.so
new file mode 100644
index 0000000..ba43e26
Binary files /dev/null and b/ManagedWimLib/Precompiled/arm64/libwim.so differ
diff --git a/ManagedWimLib/Precompiled/armhf/libwim.so b/ManagedWimLib/Precompiled/armhf/libwim.so
new file mode 100644
index 0000000..8559601
Binary files /dev/null and b/ManagedWimLib/Precompiled/armhf/libwim.so differ
diff --git a/README.md b/README.md
index 437ffd5..32a92a7 100644
--- a/README.md
+++ b/README.md
@@ -31,8 +31,18 @@ If you need .Net Framework 4.5 support, use [1.1.x version](https://www.nuget.or
 
 ### Supported OS platforms
 
-- Windows x86, x64
-- Linux x64
+| Platform | Architecture | Tested |
+|----------|--------------|--------|
+| Windows  | x86, x64     | Yes    |
+| Linux    | x64, armhf   | Yes    |
+|          | arm64        | No     |
+
+#### Tested linux distributions
+
+| Architecture | Distribution | Note |
+|--------------|--------------|------|
+| x64          | Ubuntu 18.04 |      |
+| armhf        | Debian 9     | Emulated on QEMU's virt board |
 
 ### Supported wimlib version
 
@@ -44,8 +54,8 @@ See [USAGE.md](./USAGE.md).
 
 ## License
 
-Licensed under LGPLv3.
+Licensed under LGPLv3.  
 See [LICENSE](./LICENSE) for details.
 
-Logo is licensed under CC BY 3.0 US.
+Logo is licensed under CC BY 3.0 US.  
 [disc](https://thenounproject.com/term/disc/772617) by Ralf Schmitzer from the Noun Project
\ No newline at end of file
diff --git a/USAGE.md b/USAGE.md
index de5ff18..596bd23 100644
--- a/USAGE.md
+++ b/USAGE.md
@@ -11,16 +11,24 @@ Put this snippet in your application's init code:
 ```cs
 public static void InitNativeLibrary()
 {
+    const string x64 = "x64";
+    const string x86 = "x86";
+    const string armhf = "armhf";
+    const string arm64 = "arm64";
+
+    const string dllName = "libwim-15.dll";
+    const string soName = "libwim.so";
+
     string libPath = null;
     if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
     {
         switch (RuntimeInformation.ProcessArchitecture)
         {
-            case Architecture.X64:
-                libPath = Path.Combine("x64", "libwim-15.dll");
-                break;
             case Architecture.X86:
-                libPath = Path.Combine("x86", "libwim-15.dll");
+                libPath = Path.Combine(x86, dllName);
+                break;
+            case Architecture.X64:
+                libPath = Path.Combine(x64, dllName);
                 break;
         }
     }
@@ -29,7 +37,13 @@ public static void InitNativeLibrary()
         switch (RuntimeInformation.ProcessArchitecture)
         {
             case Architecture.X64:
-                libPath = Path.Combine("x64", "libwim.so");
+                libPath = Path.Combine(x64, soName);
+                break;
+            case Architecture.Arm:
+                libPath = Path.Combine(armhf, soName);
+                break;
+            case Architecture.Arm64:
+                libPath = Path.Combine(arm64, soName);
                 break;
         }
     }
@@ -48,11 +62,13 @@ public static void InitNativeLibrary()
 ManagedWimLib comes with sets of binaries of `wimlib 1.13.0-BETA5`.  
 They will be copied into the build directory at build time.
 
-| Platform         | Binary                        | License |
-|------------------|-------------------------------|---------|
-| Windows x86      | `$(OutDir)\x86\libwim-15.dll` | LGPLv3  |
-| Windows x64      | `$(OutDir)\x64\libwim-15.dll` | LGPLv3  |
+| Platform         | Binary                        | License              |
+|------------------|-------------------------------|----------------------|
+| Windows x86      | `$(OutDir)\x86\libwim-15.dll` | LGPLv3               |
+| Windows x64      | `$(OutDir)\x64\libwim-15.dll` | LGPLv3               |
 | Ubuntu 18.04 x64 | `$(OutDir)\x64\libwim.so`     | LGPLv3 (w/o NTFS-3G) |
+| Debian 9 armhf   | `$(OutDir)\armhf\libwim.so`   | LGPLv3 (w/o NTFS-3G) |
+| Debian 9 arm64   | `$(OutDir)\arm64\libwim.so`   | LGPLv3 (w/o NTFS-3G) |
 
 ### Custom binary
 
@@ -60,8 +76,10 @@ To use custom wimlib binary instead, call `Wim.GlobalInit()` with a path to the
 
 #### NOTES
 
-- Ubuntu 18.04 x64 binary is compiled without NTFS-3G support (`./configure --without-ntfs-3g --without-libcrypto --enable-static`) because it makes binary GPLv3 licensed. If you want NTFS-3G functionality, use system-provided or custom libwim.so and make sure your program is compatible with GPLv3.
 - Create an empty file named `ManagedWimLib.Precompiled.Exclude` in project directory to prevent copy of package-embedded binary.
+- Linux binaries were compiled without NTFS-3G support (`./configure --without-ntfs-3g --without-libcrypto --enable-static`) because it makes binaries GPLv3 licensed. If you want NTFS-3G functionality, use system-provided or custom libwim.so and make sure your program is compatible with GPLv3.
+- You may have to compile custom wimlib to use ManagedWimLib in untested linux distribution.
+- Untested on arm64, because .Net Core 2.1 arm64 runtime has an [issue](https://github.com/dotnet/coreclr/issues/19578).
 
 ### Cleanup