This release adds 2 notable features for engineering teams evaluating rollout.
✓ No known CVEs patched in this version
Topics
+8 more
Summary
AI summaryCSS Variables plugin adds themeable templates and dark‑mode foundation.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Feature | Medium |
Introduces CSS Variables plugin for themeable templates and dark mode foundation. Introduces CSS Variables plugin for themeable templates and dark mode foundation. Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Feature | Medium |
Adds MCP integration allowing AI agents to interact with selectors, styles, and content. Adds MCP integration allowing AI agents to interact with selectors, styles, and content. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Medium |
Provides early preview of Silex Desktop app built with Tauri. Provides early preview of Silex Desktop app built with Tauri. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Medium |
Integrates Model Context Protocol (MCP) to let AI agents interact with selectors, styles, and content. Integrates Model Context Protocol (MCP) to let AI agents interact with selectors, styles, and content. Source: granite4.1:30b@2026-05-22-audit Confidence: low |
— |
| Bugfix | Medium |
Prevents import image by URL from breaking publication. Prevents import image by URL from breaking publication. Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Bugfix | Medium |
Resolves FTP save issue when src/ folder does not exist. Resolves FTP save issue when src/ folder does not exist. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Eliminates random disappearance of default styles. Eliminates random disappearance of default styles. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Fixes WebKitGTK drag-and-drop functionality on Linux. Fixes WebKitGTK drag-and-drop functionality on Linux. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Prevents auto-generated IDs for elements unless explicitly set. Prevents auto-generated IDs for elements unless explicitly set. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Corrects selectors handling for `:hover` without explicit selector, uppercase classes, and body styling. Corrects selectors handling for `:hover` without explicit selector, uppercase classes, and body styling. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Improves macOS file:// links and logging functionality. Improves macOS file:// links and logging functionality. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Fixes data source UI issues with WP backend types and dropdown positioning. Fixes data source UI issues with WP backend types and dropdown positioning. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Enhances code selection and editing in Settings panel. Enhances code selection and editing in Settings panel. Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
Fixes FTP save when `src/` folder is missing. Fixes FTP save when `src/` folder is missing. Source: granite4.1:30b@2026-05-22-audit Confidence: low |
— |
| Bugfix | Medium |
Resolves random loss of default styles. Resolves random loss of default styles. Source: granite4.1:30b@2026-05-22-audit Confidence: low |
— |
Full changelog
Silex v3.7.3 — CSS Variables and many bug fixes
CSS Variables plugin lays the foundation for themeable templates and upcoming dark mode. Plus MCP integration for AI agents and a long list of bug fixes.
🎨 New plugin: CSS Variables (foundation for theming)
@silexlabs/grapesjs-css-variables lets you define and reference CSS custom properties (variables) directly from the style manager.
Why this matters:
- Theme-able templates — build a template once with named variables (
--primary-color,--font-heading, etc.), then adapt it to a brand identity in seconds by just changing variable values - Dark mode foundation — variables are the standard way to implement light/dark themes; Silex now has the primitive needed
🤖 MCP / AI Integration
Silex exposes editing capabilities through the Model Context Protocol so AI agents can interact with selectors, styles, and content. Available standalone (stdio) and embedded in the editor.
🐛 Notable Fixes
- WebKitGTK drag-and-drop now works (Linux usability)
- FTP save when
src/folder doesn't exist (#1644) - "Default styles missing randomly" — root cause fixed
- Elements no longer get auto-generated IDs unless explicitly set
- Selectors:
:hoverwithout explicit selector (#1643), uppercase classes, body styling - macOS: file:// links and logging
- Data source UI: WP backend types, dropdown positioning
- Import image by URL no longer breaks publication
- Code selection/editing in Settings panel
🖥️ Early preview: Silex Desktop
A native desktop app (built with Tauri) is included as an early preview for testing. Not yet production-ready. Available in Downloads below.
🙏 Contributors
Welcome new contributors Safal2004 and Wassim Triki!
Also: Alex Hoyau, oliviermgx, Ola Mohamed, Syed Ishmum Ahnaf.
Downloads
| Platform | Server (CLI) | Desktop App |
|----------|-------------|-------------|
| Linux x64 | silex-server-linux-amd64 | .deb · .rpm |
| macOS ARM | silex-server-macos-arm64 | .dmg |
| macOS x64 | silex-server-macos-x64 | .dmg |
| Windows x64 | silex-server-windows-amd64.exe | .exe |
Full Changelog: https://github.com/silexlabs/Silex/compare/v3.7.2...v3.7.3
Weekly OSS security release digest.
The CVE patches and breaking changes that affected production tools this week. One email, every Sunday.
No spam, unsubscribe anytime.
Share this release
About Silex
Silex is an online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.
Related context
Related tools
Beta — feedback welcome: [email protected]