What’s New in Taro 1.1? Expanded Mini‑Program Support and UI Library Features

Release Overview

Taro 1.1 was released after more than a month of development, containing over 500 commits and nearly 30 intermediate releases.

New Mini‑Program Platform Support

Baidu Smart Mini‑Program

Full compilation and preview are added for Baidu smart mini‑programs.

npm scripts:

npm run dev:swan

npm run build:swan

Global CLI:

taro build --type swan --watch

taro build --type swan

After building, open Baidu Developer Tools and select the dist directory for preview.

Alipay Mini‑Program

Compilation workflow mirrors Baidu.

npm scripts:

npm run dev:alipay

npm run build:alipay

Global CLI:

taro build --type alipay --watch

taro build --type alipay

After building, open Alipay Mini‑Program Developer Tools and select the dist directory for preview.

Platform Identifiers

Developers can write platform‑specific code using process.env.TARO_ENV, which yields the following values: weapp – WeChat mini‑program h5 – H5 web rn – React Native swan – Baidu smart mini‑program (added in 1.1) alipay – Alipay mini‑program (added in 1.1)

Multi‑Platform UI Library Packaging

The build command now accepts a --ui flag, allowing code that follows a specific convention to be packaged as a reusable UI library usable across all supported platforms. Taro UI, the first cross‑platform UI library, was introduced in version 1.0; version 1.1 expands the packaging capability.

Documentation: https://nervjs.github.io/taro/docs/ui-lib.html

Additional Feature Updates

WeChat Mini‑Program

Bug fix: JSON diff algorithm when calling this.setState.

Bug fix: Nested this.setState callbacks.

New lifecycle componentWillPreload for data pre‑loading.

Support for JSX assignment within the same scope.

Fixes for multi‑level map nesting, Unicode handling, ternary parsing, and string template performance.

H5

Support for sub‑package configuration.

Bug fix: lifecycle execution on background pages.

Bug fix: sending request bodies for PUT/DELETE when the body is an object.

Added setTabBarStyle and setTabBarItem APIs.

Added arrayBufferToBase64 and base64ToArrayBuffer APIs.

Build support for extracting common npm packages into a lib library.

React Native

Added TypeScript support.

Bug fix: less compilation error after project initialization.

Added config.window.navigationStyle configuration.

Added showNavigationBarLoading and hideNavigationBarLoading APIs.

Added arrayBufferToBase64 / base64ToArrayBuffer APIs.

Bug fix: style warning suppression.

Watch mode now compiles code on demand.

Bug fix: style import errors when multiple JS files share a folder.

Made app.json Expo configuration overridable.

Added support for Taro.pxTransform and custom deviceRatio.

Future Plans

The roadmap for upcoming releases is documented at https://github.com/NervJS/taro/blob/master/PLANS.md.

Mini‑Program to Taro Code Conversion (Beta)

The conversion tool is complete and in internal testing. Install the canary version to try it: npm i -g @tarojs/cli@canary Feedback can be submitted via the issue tracker: https://github.com/NervJS/taro/issues/955

References

Full changelog: https://github.com/NervJS/taro/blob/master/CHANGELOG.md

Official repository: https://github.com/NervJS/taro