slint v1.18.1

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

Release notes

Slint 1.18.1 is a patch release that fixes several bugs and crashes. For a complete list of changes, check out the [ChangeLog](https://github.com/slint-ui/slint/blob/master/CHANGELOG.md#1181---2026-09-21).

Upgrading to Slint 1.18.1:

   * Rust: Run `cargo update`.
   * C++: If you're using `FetchContent` with CMake, update the GIT_TAG entry in CMakeLists.txt to `v1.18.1` or `release/1.18` for automatic tracking of 1.18.x releases.
   * Node.js: Run `npm update slint-ui` to bring your `package.json` up-to-date.
   * ESP-IDF developers: Run `idf.py update-dependencies` to bring your idf_component.yml up-to-date.
   * Python: Run `uv lock --upgrade-package slint` to update your [uv](https://docs.astral.sh/uv/) lock file to the latest version.

# Assets

## C++ SDK

For C++ developers, this release contains the following pre-packed builds of Slint:

| Desktop Operating System | Compiler | Architecture | Download |
|--------------------------|----------|--------------|----------|
| Linux                    | gcc      | x86-64       | [Slint-cpp-1.18.1-Linux-x86_64.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/Slint-cpp-1.18.1-Linux-x86_64.tar.gz) |
| Linux                    | gcc      | arm64        | [Slint-cpp-1.18.1-Linux-arm64.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/Slint-cpp-1.18.1-Linux-arm64.tar.gz) |
| Linux                    | gcc      | armhf        | [Slint-cpp-1.18.1-Linux-armhf.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/Slint-cpp-1.18.1-Linux-armhf.tar.gz) |
| Windows                  | MSVC     | x86-64       | [Slint-cpp-1.18.1-win64-MSVC-AMD64.exe](https://github.com/slint-ui/slint/releases/download/v1.18.1/Slint-cpp-1.18.1-win64-MSVC-AMD64.exe) |
| Windows                  | MSVC     | arm64        | [Slint-cpp-1.18.1-win64-MSVC-ARM64.exe](https://github.com/slint-ui/slint/releases/download/v1.18.1/Slint-cpp-1.18.1-win64-MSVC-ARM64.exe) |

| Templates for Microcontroller Evaluation Board | Download |
|----------------------------------|----------|
| [STM32H747I-DISCO](https://www.st.com/en/evaluation-tools/stm32h747i-disco.html): Dual-core Arm M7/M4 MCU with 4” touch LCD display module | [slint-cpp-template-stm32h747i-disco.zip](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-cpp-template-stm32h747i-disco.zip) |
| [STM32H735G-DK](https://www.st.com/en/evaluation-tools/stm32h735g-dk.html): Arm M7 MCU with 4” touch LCD display module | [slint-cpp-template-stm32h735g-dk.zip](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-cpp-template-stm32h735g-dk.zip) |

## Tool Binaries

| Add-on    | Linux x86-64 | Windows (x86-64) | Windows (aarch64) | macOS (universal) | Linux aarch64 | Linux armv7 |
|-----------|--------------|---------|-------|-------|-------|-------|
| **slint-lsp** | [slint-lsp-x86_64-unknown-linux-gnu.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-x86_64-unknown-linux-gnu.tar.gz) | [slint-lsp-x86_64-pc-windows-msvc.zip](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-x86_64-pc-windows-msvc.zip) | [slint-lsp-aarch64-pc-windows-msvc.zip](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-aarch64-pc-windows-msvc.zip) | [slint-lsp-universal-apple-darwin.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-universal-apple-darwin.tar.gz) | [slint-lsp-aarch64-unknown-linux-gnu.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-aarch64-unknown-linux-gnu.tar.gz) | [slint-lsp-armv7-unknown-linux-gnueabihf.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-lsp-armv7-unknown-linux-gnueabihf.tar.gz)
| **slint-viewer** | [slint-viewer-x86_64-unknown-linux-gnu.tar.gz](https://github.com/slint-ui/slint/releases/download/v1.18.1/slint-viewer-x86_64-unknown-linux-gnu.tar.gz) | [slint-viewer-x86_64-pc-windows-msvc.zip](https://github.co…

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