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Android Studio Release Notes

Android Studio is the official IDE for Android development, and with a single download includes everything you need to begin developing Android apps:

For an introduction to Android Studio, read Meet Android Studio.

Periodic updates are pushed to Android Studio without requiring you to update your Android project. To manually check for updates, select Help > Check for update (on Mac, select Android Studio > Check for updates).

Revisions

The sections below provide notes about successive releases of Android Studio, as denoted by revision number.

Android Studio v2.2.0 (September 2016)

New

  • All new Layout Editor with tools custom-built to support ConstraintLayout.
  • New Layout Inspector lets you examine snapshots of your layout hierarchy while your app is running on the emulator or a device.
  • New Assistant window to help you integrate Firebase services into your app.
  • New APK Analyzer tool so you can inspect the contents of your packaged app.
  • New Espresso Test Recorder tool (currently in beta) to help you create UI tests by recording your own interactions.
  • New build cache (currently experimental) to speed up build performance.
  • New C/C++ build integration with CMake and ndk-build. Compile and build new or existing native code into libraries packaged into your APK, and debug using lldb. For new projects, Android Studio uses CMake by default, but also supports ndk-build for existing projects. To learn how to include native code in your Android application, read Add C and C++ Code to Your Project. To learn how to debug native code with lldb, see Debug Native Code.
  • New Samples Browser so you can easily look up Google Android sample code from within Android Studio to jump start app development.
  • New Merged Manifest Viewer to help you diagnose how your manifest file merges with your app dependencies across project build variants.
  • The Run window now contains log messages for the current running app. Note that you can configure the logcat Monitor display, but not the Run window.
  • New Android Emulator features:
    • Added new Virtual Sensors and Cellular > Signal Strength controls.
    • Added an LTE option to the Cellular > Network type control.
    • Added simulated vertical swipes for scrolling through vertical menus with a mouse wheel.
  • New Run/Debug Configuration features:
    • The Debugger tab of the Android App and Android Tests templates now contain several new options for debugging with LLDB.
    • The Profiling tab of the Android App and Android Tests templates now contain a Capture GPU Commands option for enabling GPU tracing. You can display GPU traces in the GPU Debugger (a beta feature).
    • The Android Tests template now has a Firebase Test Lab Device Matrix option for the Deployment Target.
    • The Native Application template has been deprecated. If you use this template in a project, Android Studio automatically converts it to the Android App template.
    • The Android Application template has been renamed to Android App.
  • Improved installation, configuration, performance, and UI features in the GPU Debugger (currently in beta).
  • Android Studio now comes bundled with OpenJDK 8. Existing projects still use the JDK specified in File > Project Structure > SDK Location. You can switch to use the new bundled JDK by clicking File > Project Structure > SDK Location and checking the Use embedded JDK checkbox.
  • Added new help menus and buttons in the UI so you can more easily find the online documentation.

Changes

  • Updated the IDE codebase from IntelliJ 15 to IntelliJ 2016.1
  • Instant Run now requires the platform SDK corresponding to the target device API level to be installed.
  • Instant Run will automatically disabled if user is running the app under a work profile or as a secondary user.
  • Fixed many reliability issues for Instant Run where changes were not getting deployed or the app would crash:
    • Some app assets were not deployed to your running app. ( Bug: #213454)
    • App crashes when user transitions between Instant Run and non Instant Run sessions where a Serializable class does not have serialVersionUID defined. (Bug: #209006)
    • Style changes aren’t reflected with Instant Run. (Bug: #210851)
    • Instant Run session is unreliable and causes FileNotFoundException. (Bug: #213083)
    • Changes to drawables not reflected until full rebuild is performed for KitKat. (Bug: #21530)
    • Resource changes aren’t reflected with Instant Run when custom sourceSets contain nested paths. (Bug: #219145)
    • Hot and warm swap don't work if changed class contains annotation with enum value. (Bug: #209047)
    • Changes to annotation data not reflected with Instant Run. (Bug: #210089)
    • Instant Run doesn't pick up code changes if you make changes outside the IDE. (Bug: #213205)
    • Instant Run session is unreliable due to mismatch security token. (Bug: #211989
    • Cold swap fails for devices that doesn’t properly support run-as. (Bug: #210875)
    • App crash after instant run restart. (Bug: #219744)
    • ClassNotFoundException observed when switching from Instant Run to Instant Debug. (Bug: #215805)
  • Improved performance for Gradle sync within the IDE, especially for large projects.
  • Improved build times for both full and incremental builds with new app packaging code.
  • Improved Jack compiler performance and features, including support for annotation processors and dexing in process. To learn more, read the Android plugin for Gradle 2.2.0 release notes.
  • Added an updated AccelerometerPlay sample so you can try out the emulator Accelerometer control. Select File > New > Import Sample to import the project.
  • Removed the Scale AVD property from the AVD Manager.
  • The Android Emulator -port and -ports command-line options now report which ports and serial number the emulator instance is using, and warn if there are any issues with the values you provided.
  • Improved the Create New Class dialog and the corresponding file templates. Note: If you've previously customized the AnnotationType, Class, Enum, Interface, or Singleton file templates, you need to modify your templates to comply with the new templates or you won’t be able to use the new fields in the Create New Class dialog.
  • Improved the Vector Asset Studio user interface and added support for Adobe Photoshop Document (PSD) files.
  • Improved the Image Asset Studio user interface.
  • Improved the Theme Editor's Resource Picker.
  • Fixed memory leaks and reduced overall memory usage in Android Studio.
  • Added a Background button in the SDK Manager so you can get back to work and install your packages in the background.
  • Improved Accessibility features, including support for screen readers and keyboard navigation.
  • Enhanced Code Analysis includes code quality checks for Java 8 language usage and more cross-file analysis.
  • Several toolbar icons have changed.

Android Studio v2.1.3 (August 2016)

This update adds compatibility with Gradle 2.14.1, which includes performance improvements, new features, and an important security fix. For more details, see the Gradle release notes.

By default, new projects in Android Studio 2.1.3 use Gradle 2.14.1. For existing projects, the IDE prompts you to upgrade to Gradle 2.14.1 and Android Plugin for Gradle 2.1.3, which is required when using Gradle 2.14.1 and higher.

Android Studio v2.1.2 (June 2016)

This update includes a number of small changes and bug fixes:

  • Instant Run updates and bug fixes.
  • Improvements to LLDB performance and crash notifications.
  • Fixed a regression in the Android Studio 2.1.1 security update that caused git rebase to fail.

Android Studio v2.1.1 (May 2016)

Security release update.

Android Studio v2.1.0 (April 2016)

The primary changes in this update provide support for development with the Android N Preview.

The Android N platform adds support for Java 8 language features, which require a new experimental compiler called Jack. The latest version of Jack is currently supported only in Android Studio 2.1. So if you want to use Java 8 language features, you need to use Android Studio 2.1 to build your app.

Note: Instant Run is disabled when you enable the Jack compiler because they currently are not compatible.

Although Android Studio 2.1 is now stable, the Jack compiler is still experimental and you must enable it with the jackOptions property in your build.gradle file.

Other than the changes to support the N Preview, Android Studio 2.1 includes minor bug fixes and the following enhancements:

  • The Java-aware C++ debugger is now enabled by default when you're using an N device or emulator and select Native debugger mode (in the Debugger tab for your run/debug configuration).

For other build enhancements, including incremental Java compilation and dexing-in-process,update your Android Plugin for Gradle to version 2.1.0.

Android Studio v2.0.0 (April 2016)

Note: If you are developing for the N Developer Preview, you should use Android Studio 2.1 Preview. Android Studio 2.0 does not support all the features required to target the N Preview. To learn more, read about how to properly set up your developer environment for the N Preview.

Instant Run:

  • Android Studio now deploys clean builds faster than ever before. Additionally, pushing incremental code changes to the emulator or a physical device is now almost instantaneous. Review your updates without redeploying a new debug build or, in many cases, without restarting the app.
  • Instant Run supports pushing the following changes to a running app:
    • Changes to the implementation of an existing instance method or static method
    • Changes to an existing app resource
    • Changes to structural code, such as a method signature or a static field (requires a target device running API level 21 or higher).
  • Read the documentation to learn more about Instant Run.

    Note: Instant Run is supported only when you deploy the debug build variant, use Android Plugin for Gradle version 2.0.0 or higher, and configure your app's module-level build.gradle file for minSdkVersion 15 or higher. For the best performance, configure your app for minSdkVersion 21 or higher.

New additions to Lint:

  • Inspection of switch statements using @IntDef annotated integers to make sure all constants are handled. To quickly add any missing statements, use the the intention action drop-down menu and select Add Missing @IntDef Constants.
  • Flags for incorrect attempts to use string interpolation to insert version numbers in the build.gradle file.
  • Flags for anonymous classes that extend the Fragment class.
  • Flags for native code in unsafe locations, such as the res/ and asset/ folders. This flag encourages storing native code in the libs/ folder, which is then securely packaged into the application’s data/app-lib/ folder at install time. AOSP: #169950
  • Flags for unsafe calls to Runtime.load() and System.load() calls. AOSP: #179980
  • Find and remove any unused resources by selecting Refactor > Remove Unused Resources from the menu bar. Unused resource detection now supports resources only referenced by unused resources, references in raw files such as .html image references, and tools:keep and tools:discard attributes used by the Gradle resource shrinker, while considering inactive source sets (such as resources used in other build flavors) and properly handling static field imports.
  • Checks that implicit API references are supported on all platforms targeted by minSdkVersion.
  • Flags improper usage of RecyclerView and Parcelable.
  • @IntDef, @IntRange, and @Size inspections are now also checked for int arrays and varargs.

Additional Improvements:

  • Optimized for Android Emulator 2.0, which is faster than ever before, supports a wider range of virtual devices, and features a drastically improved UI. To learn more about the new emulator, read the SDK Tools release notes.
  • Improvements to the Android Virtual Device Manager:
    • System images are now categorized under the following tabs: Recommended, x86, and Other.
    • Under advanced settings, you can enable multi-core support and specify the number of cores the emulator can use.
    • Under advanced settings, you can determine how graphics are rendered on the emulator by selecting one of the following options:
      • Hardware: use you computer's graphics card for faster rendering.
      • Software: use software-based rendering.
      • Auto: let the emulator decide the best option. This is the default setting.
  • Improved AAPT packaging times by specifying deploy target before the app is built. This allows Android Studio to efficiently package only the resources required by the specified device.
  • Added Cloud Test Lab integration to provide on-demand app testing with the convenience and scalability of a cloud service. Learn more about how you can use Cloud Test Lab with Android Studio.
  • Added a preview of the new GPU Debugger. For graphics intensive applications, you can now visually step through your OpenGL ES code to optimize your app or game.
  • Added Google App Indexing Test. Add support for URLs, app indexing, and search functionality to your apps to help drive more traffic to your app, discover which app content is used most, and attract new users. Test and validate URLs in your app all within Android Studio. See Supporting URLs and App Indexing in Android Studio.
  • Upgrades from the latest IntelliJ 15 release, including improved code analysis and performance. See What's New in IntelliJ for a complete description of the new features and enhancements.
  • XML editor auto-complete now adds quotations marks when completing attributes. To check if this option is enabled, open the Setting or Preferences dialogue, navigate to Editor > General > Smart Keys, and check the box next to Add quotes for attribute value on attribute completion. Issue: 195113
  • The XML editor now supports code completion for data binding expressions.

Android Studio v1.5.1 (December 2015)

Fixes and enhancements:

  • Fixed a rendering failure issue in the Layout Editor. Issue: 194612
  • Added the ability to vary description manifest attributes by configuration. Issue: 194705
  • Improved the contrast of the Android Studio Darcula appearance theme in Vector Asset Studio. Issue: 191819
  • Added Help button support to Vector Asset Studio.
  • Added support for the % operator for data binding. Issue: 194045
  • Fixed a case where launching an app for debugging resulted in the debugger connecting to the wrong device. Issue: 195167
  • Fixed a null pointer exception that could occur when attempting to run an app in certain scenarios.

Android Studio v1.5.0 (November 2015)

Fixes and enhancements:

  • Added new Memory Monitor analysis abilities to Android Monitor. When you view an HPROF file captured from this monitor, the display is now more helpful so you can more quickly locate problems, such as memory leaks. To use this monitor, click Android Monitor at the bottom of the main window. In Android Monitor, click the Memory tab. While the monitor is running, click the Dump Java Heap icon, and then click Captures in the main window and double-click the file to view it. Click Capture Analysis on the right. (The Android Device Monitor can't be running at the same time as Android Monitor.)
  • Added new deep link and app link support. The Code Editor can automatically create an intent filter for deep linking in the AndroidManifest.xml file. It can also generate code to help you integrate with the App Indexing API in an activity in a Java file. A deep link testing feature helps you verify that a specified deep link can launch an app. In the General tab of the Run/Debug Configurations dialog, you can specify deep link launch options. You can also test App Indexing API calls in an activity by using the Android Monitor logcat display. The Android lint tool now has warnings for certain issues involving deep links and the App Indexing API.
  • Added the ability to use short names when code-completing custom views in the Code Editor.
  • Added support for more VectorDrawable elements to Vector Asset Studio for backward-compatibility. Vector Asset Studio can use these elements to convert vector drawables into PNG raster images to use with Android 4.4 (API level 20) and lower.
  • Added new lint checks for Android TV and Android Auto to give you immediate, actionable feedback in Android Studio, along with several quick fixes. For example, for Android TV, it can report and provide a quick fix for permissions, unsupported hardware, uses-feature element, and missing banner issues. For Android Auto, it can validate the correct usage in the descriptor file referred from your AndroidManifest.xml file, report if there isn't an intent filter for the MediaBrowserService class, and identify certain voice actions issues.
  • Added new lint checks for insecure broadcast receivers, SSLCertificateSocketFactory and HostnameVerifier class uses, and File.setReadable() and File.setWritable() calls. It also detects invalid manifest resource lookups, especially for resources that vary by configuration.
  • Fixed a number of stability issues.

Android Studio v1.4.1 (October 2015)

Fixes and enhancements:

  • Fixed a Gradle model caching issue that could lead to excessive Gradle syncing when the IDE was restarted.
  • Fixed a native debugging deadlock issue.
  • Fixed an issue blocking users of the Subversion 1.9 version control system.
  • Fixed a Device Chooser dialog problem where after connecting a device that was unauthorized you could no longer select the emulator. Issue: 189658
  • Fixed incorrect translation error reporting for locales that have a region qualifier and a translation in the region (but not in the base locale). Issue: 188577
  • Fixed a deadlock issue in the Theme Editor related to its interaction with the Layout Editor. Issue: 188070
  • Fixed a Theme Editor reload and edit conflict causing attributes to not properly update. Issue: 187726
  • Improved Theme Editor performance.
  • Fixed an issue where the android:required attribute was ignored in the manifest. Issue: 187665

Android Studio v1.4.0 (September 2015)

Fixes and enhancements:

  • Added the Vector Asset Studio tool for importing vector graphics, such as material icons and SVG files. To use this tool, in the Android view of the Project window, right-click the res folder and select New > Vector Asset.
  • Added new Android Monitor functions, GPU and Network. To use these monitors, click Android Monitor at the bottom of the main window. The Android Device Monitor can't be running at the same time as Android Monitor.
  • Added an early preview of the new Theme Editor. To use this feature, select Tools > Android > Theme Editor.
  • Updated the Android templates for the Design Support Library. Templates now include support for the Material Design specification, as well as the appcompat Support Library for backwards compatibility.

Android Studio v1.3.2 (August 2015)

Fixes and enhancements:

  • Added support for Android 6.0 (API level 23), including new icons and AVD Manager support for creating devices with new screen densities.
  • Fixed an exception that was occuring during update checks. Issue: 183068
  • Fixed problem where unresolved view coordinates could cause the layout editor to crash. Issue: 178690
  • Fixed issue with invalid resource type warnings. Issue: 182433
  • Fixed lint check that was incorrectly flagging resources as private. Issue: 183120

Android Studio v1.3.1 (August 2015)

Fixes and enhancements:

  • Fixed support for creating an Android Wear Android Virtual Device (AVD) on Windows.
  • Updated the Project Wizard to use the entered project name.
  • Added support to allow the Android SDK to be stored in a read-only directory.
  • Updated Android Plugin for Gradle version to 1.3.0.
  • Fixed issues with launching a debug session from the Android Debug Bridge (adb) Unix shell.
  • Fixed the Java package renaming message to show the correct package name.

Android Studio v1.3.0 (July 2015)

Fixes and enhancements:

  • Added options to enable developer services, such as AdMob and Analytics, in your app from within Android Studio.
  • Added additional annotations, such as @RequiresPermission, @CheckResults, and @MainThread.
  • Added the capability to generate Java heap dumps and analyze thread allocations from the Memory Monitor. You can also convert Android-specific HPROF binary format files to standard HPROF format from within Android Studio.
  • Integrated the SDK Manager into Android Studio to simplify package and tools access and provide update notifications.

    Note: The standalone SDK Manager is still available from the command line, but is recommended for use only with standalone SDK installations.

  • Added the finger command in the emulator console to simulate fingerprint authentication.
  • Added a <public> resource declaration to designate library resources as public and private resources.

    Note: Requires Android Plugin for Gradle version 1.3 or higher.

  • Added data binding support to create declarative layouts that bind your application logic to layout elements.
  • Added support for a separate test APK module to build test APKs in Android Studio.
  • Updated the AVD Manager with HAXM optimizations and improved notifications.
  • Added 64-bit ARM and MIPS emulator support for QEMU 2.1.
  • Simplified the resolution of Lint warnings by adding quick fixes, such as the automatic generation of Parcelable implementation.
  • Added live template support for quick insertion of code snippets.

Android Studio v1.2.2 (June 2015)

Fixes and enhancements:

  • Fixed build issues that were blocking builds from completing.

Android Studio v1.2.1 (May 2015)

Fixes and enhancements:

  • Fixed minor performance and feature issues.

Android Studio v1.2.0 (April 2015)

Fixes and enhancements:

  • Updated the Android runtime window to include the Memory Monitor tool and added a tab for CPU performance monitoring.
  • Added a Captures tab in the left margin to display the captured memory and CPU performance data files, such as CPU method tracking and memory heap snapshots.
  • Expanded annotation support with additional metadata annotations and inferred nullability.
  • Enhanced the Translations Editor with additional support for Best Current Practice (BCP) 47, which uses 3-letter language and region codes.
  • Integrated IntelliJ 14 and 14.1 features for improved code analysis and performance:
    • Enhanced debugging to show inline values for variables and referring objects, as well as perform inline evaluation of lambda and operator expressions.
    • Added code style detection for tab and indent sizes.
    • Added scratch files for code experiments and prototyping without project files.
    • Added the simultaneous insertion of opening and closing tags in HTML and XML files.
    • Added a built-in Java class decompiler so you can look at what’s inside a library for which the source code is not available.

    See What's New in IntelliJ for a complete description of the new features and enhancements.

  • Added additional Project Views for Scratches, Project Files, Problems, Production, and Tests to enhance project management and access.
  • Enhanced the File > Settings menu and dialogs for improved settings access and management.
  • Added support for high-density displays for Windows and Linux.
  • Added support for 280 dpi resources in the res/drawable-280dpi/ folder.

Android Studio v1.1.0 (February 2015)

Various fixes and enhancements:

  • Added support for the Android Wear watch template.
  • Modified new project and module creation to include res/mipmap folders for density-specific launcher icons. These res/mipmap folders replace the res/drawable folders for launcher icons.
  • Updated launcher icons to have a Material Design look and added an xxxhdpi launcher icon.
  • Added and enhanced Lint checks for region and language combinations, launcher icons, resource names, and other common code problems.
  • Added support for Best Current Practice (BCP) language tag 47.

Android Studio v1.0.1 (December 2014)

Various fixes and enhancements:

  • Fixed AVD Manager and device.xml file lock issue.
  • Fixed the emulator log on Windows systems.
  • Fixed issue with creating AVDs with Android Studio and Android SDK installed on different drives on Windows systems.
  • Sets the default update channel for new downloads to Stable. If you installed the 1.0.0 version of Android Studio and would like stable, production-ready version updates, use File > Settings > Updates to change to the Stable update channel.

Android Studio v1.0 (December 2014)

Initial release of Android Studio.

Android Studio v0.8.14 (October 2014)

See tools.android.com for a full list of changes.

Android Studio v0.8.6 (August 2014)

See tools.android.com for a full list of changes.

Android Studio v0.8.0 (June 2014)

Added support for Android Wear projects.

See tools.android.com for a full list of changes.

Android Studio v0.5.2 (May 2014)

Android Studio v0.4.6 (March 2014)

Android Studio v0.4.2 (Jan 2014)

Android Studio v0.3.2 (Oct 2013)

Android Studio v0.2.x (July 2013)

  • Merged in the latest IntelliJ codebase changes. Includes fixes for issues reported by Studio users such as tweaks to Linux font sizes and font rendering.
  • Android Gradle plug-in updated to 0.5.0.

    Caution: This new version is not backwards compatible. When opening a project that uses an older version of the plug-in, Studio will show an error stating Gradle <project_name> project refresh failed.

    The updated Gradle plug-in includes the following changes:

    • Fixed IDE model to contain the output file even if it's customized through the DSL. Also fixed the DSL to get/set the output file on the variant object so that it's not necessary to use variant.packageApplication or variant.zipAlign
    • Fixed dependency resolution so that we resolved the combination of (default config, build types, flavor(s)) together instead of separately.
    • Fixed dependency for tests of library project to properly include all the dependencies of the library itself.
    • Fixed case where two dependencies have the same leaf name.
    • Fixed issue where Proguard rules file cannot be applied on flavors.

    All Gradle plugin release notes are available are here: http://tools.android.com/tech-docs/new-build-system.

  • Gradle errors from aapt no longer point to merged output files in the build/ folder, they point back to the real source locations.
  • Parallel Builds. It's now possible to use Gradle's parallel builds. Please be aware that parallel builds are in "incubation" (see Gradle's documentation.) This feature is off by default. To enable it, go to Preferences > Compiler and check the box Compile independent modules in parallel.
  • Further work on the new resource repository used for layout rendering, resource folding in the editor, and more:
    • Basic support for .aar library dependencies (e.g. using a library without a local copy of the sources). Still not working for resource XML validation and navigation in source editors.
    • Cycle detection in resource references.
    • Quick Documentation (F1), which can show all translations of the string under the caret, will now also show all resource overlays from the various Gradle flavors and build types, as well as libraries. They are listed in reverse resource overlay order, with strikethrough on the versions of the string that are masked.
    • Fixes to handle updating the merged resources when the set of module dependencies change.
    • XML rendering fixes to properly handle character entity declarations and XML and unicode escapes.
  • Save screenshot support for the layout preview and layout editor windows.
  • Template bug fixes.
  • Lint bug fixes.
  • Various fixes for crash reports. Thank you, and keep filing crash reports!

Android Studio v0.1.x (May 2013)

  • Various bug fixes, including a fix for a common Windows installation issue.

 

Troubleshooting

If you encounter problems in Android Studio, look at the following page for possible resolutions to known issues: http://tools.android.com/knownissues.

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