Evan Hu
71e560295e
合并到 main 就等于发版：release-please 把每一次 fix:/feat: 合并变成已构建、已发布的安装包，中间没有任何人工节点。所以决定「发出去的是什么」的那些路径需要第二双眼睛，即使日常代码改动不需要。 覆盖四类：发布流水线本身与 CI 信任的一切（.github/、scripts/）；落到用户磁盘上的东西（installer/）；决定发出去的是哪个引擎、哪份词库、哪个版本（product-lock.json、version.txt、.gitmodules、vendor/）；以及用户据以判断是否信任这个软件的声明（PRIVACY.md、SECURITY.md、LICENSE、THIRD_PARTY_NOTICES.txt）。 这个文件只有在分支 ruleset 打开 require_code_owner_review 之后才会真正生效，那一半在仓库外。放在这里的是仓库内的一半。
Metasequoia IME for Windows
A free and open-source Chinese and Japanese input method for Windows 10 and 11, built on TSF with no legacy IMM32 path.
This repository is the Windows product: the TSF text service DLL, the resident server, a self-written native GUI framework, the HTML surfaces and the installer. The conversion engine is shared with the macOS, iOS and Linux frontends and lives in MSIME-Engine.
This is a public beta. Expect rough edges and read the release notes before upgrading.
Install
Download the installer from Releases or the download page, run it, then switch with Win + Space.
Current builds are not code signed. SmartScreen will block them and uiAccess is unavailable, which means the candidate window cannot float above elevated applications. Verify the download with the SHA256 published on the download page.
You need the Microsoft Visual C++ 2015–2022 Redistributable (x64). The server and settings app are 64-bit; the x86 redistributable is a separate package and does not substitute for it. If you cannot switch to the IME, the server keeps exiting, or the settings window closes immediately, install that first.
What it does
- Chinese input: full pinyin, double pinyin (Xiaohe / Ziranma / Shoudao / Microsoft), Wubi 86
- Japanese input: romaji, with hiragana, katakana and dictionary candidates; also available as a temporary mode from Chinese
- Helpcode (形码) filtering on pinyin schemes: five tables, single- and double-code
- Optional cloud candidates, and AI suggestions via DeepSeek / OpenAI / SiliconFlow / Groq
- English-Chinese glosses in the vertical candidate window
- Mixed Chinese-English input, emoji and kaomoji, a dedicated English candidate mode
- Voice input with streaming recognition and optional cleanup
- Handwriting, on-screen keyboard, floating toolbar, clipboard history
- User dictionary management, candidate frequency tuning, skins with light and dark variants
Privacy
An input method sees every keystroke, so the boundaries are stated explicitly in PRIVACY.md: which features reach the network, what each one sends, what the defaults are, and how to turn each off.
Two things worth knowing up front. Cloud candidates are on by default — the composition spelling goes to Google's input-tools service, and it is the only network feature that works without you supplying a credential. API tokens are stored in plain text in config.toml, unlike macOS and Linux which use the Keychain and Secret Service.
There is no telemetry, analytics or crash reporting of any kind.
Building and contributing
CONTRIBUTING.md has the environment, the build order and what to run before opening a pull request. Contributions do not have to be code — dictionary entries, documentation, icons and compatibility testing all count, and the recruiting page lists them by area.
Note that most issues, documentation and code comments are in Chinese. English pull requests and issues are welcome.
Licence
GPL-3.0. See LICENSE and THIRD_PARTY_NOTICES.txt.