What's New in APL 2022.1
(This is not the most recent version of the APL change log. Use the Other Versions option to see the documentation for the most recent version of the APL change log)
Alexa Live 2022 updates (July 20, 2022)
The Alexa Live 2022 launch includes new tooling and documentation features for APL.
Multimodal Response Builder
The Multimodal Response Builder provides a guided experience to create a visual response with no previous APL knowledge. You can select from a set of templates designed to look good across a broad range of devices, then customize the response by specifying the content to display within the template. Then, you preview the response both in the developer console and on a device.
After you finish customizing the response, the Multimodal Response Builder generates a code example you can copy into a request handler in your skill to display the response.
The Multimodal Response Builder doesn't replace the existing APL authoring tool. Use the authoring tool to build custom documents. You can also use the Multimodal Response Builder to get started, and then edit the document in the full authoring tool if you want to do more complex customizations.
For more about using the Multimodal Response Builder, see Use the Multimodal Response Builder.
The code sandbox displays APL examples in a code editor alongside a live APL preview pane. You can experiment with changing the code and see your changes render in the preview pane.
Most interactive features work in the sandbox. For example, you can test interactive components that run APL commands. The sandbox does have some limitations:
- The sandbox doesn't support the
- The sandbox doesn't connect to a skill, so you can't test the
- The sandbox doesn't support testing APL transformers, such as the
- The code editor doesn't save your changes. When you refresh the page or click the Reset all button, the code shown in the editor reverts to its original state. The Reset all button resets the APL Document and Data Sources tabs.
For topics that include the code sandbox, see the following:
- What Makes Up an APL Visual Response?
- Display Text on the Screen
- Combine Content with Backgrounds, Borders, and Headers
- The topics within the Responsive Components section.
New best practices guide
Use the new APL Best Practices for Developers guide to learn how to streamline your APL skill development process and improve the quality of the interactive voice and visual experiences in your Alexa skills. The guide covers the technical aspects of implementing APL, with less focus on visual design and user experience (UX).
To read the new guide, see APL Best Practices for Developers.
New accessibility guide
Use the new APL Accessibility Guide to learn how to build APL visuals that are accessible to users with limitations and disabilities. APL supports screen readers for users with impaired vision. This guide explains how APL supports accessibility and provides best practices for building more accessible experiences.
To read the new guide, see APL Accessibility Guide.
APL for audio templates
When you create a new APL for audio document in the authoring tool, you can select from a set of templates that show how to achieve common tasks.
For details, see APL for audio templates.
APL 2022.1 (June 7, 2022)
Alexa Presentation Language (APL) 2022.1 introduces new features and capabilities for APL. APL 2022.1 was released on June 7, 2022.
Revised APL version number format
With the latest APL release, APL version numbers now use a year-based format: <YEAR>.<RELEASE>. Therefore, the latest version of APL is 2022.1. Set the
version property of your APL documents to
2022.1 and use
2022.1 in conditional statements in your documents.
Authoring tool updates
The Lottie converter now supports additional Lottie format features:
- Bezier Interpolation
- Linear Interpolation
- Alpha Matte / Mask
- Spacial Bezier Interpolation
- Line Cap
- Trim Paths Individually
- Radial Gradient
- Stroke Gradient
For a detailed list of supported Lottie features, see Import a Lottie Animation
Mute and unmute the video audio during runtime
The Video component now includes a dynamic
muted property. Set this property to
true to mute the
audioTrack for the video. Because
muted is dynamic, you can mute and unmute the audio at runtime. Use the
SetValue command to change this property during runtime.
As part of this update, when the
Video component is the source or target of an event, the
event.target event includes a
muted property to report the current muted state of the video.
Work with APL versions
For details about how to check the APL version, see What's New in APL.
Last updated: Feb 07, 2023