Marp

Fixed

• Fix the navigation timeout error during conversion with Chrome 139 + macOS/Linux (#682, #683)

Fixed

• Standalone binary: Fix ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING error when exporting to pptx (#676, #677)

Changed

• Server mode: Connect to proxied watch notifier WebSocket server instead of localhost (#513, #664)
• Upgrade Jest to v30 (#669)
• Upgrade dependent packages to the latest version (#674)

Fixed

• Follow up for auto-detection of the slide title: Make accessible auto-detected title from other injected plugins (#131, #666)

Added

• Assign the slide title from first heading in Markdown automatically (#131, #655 by @Alberthor47)
• Test against Node.js v24 (#658)

Changed

• Upgrade Marpit to v3.1.3 (#654, #657)
• Upgrade Marp Core to v4.1.0 (#657)
  • Transform Unicode 16 emojis into Twemoji images by default
• Upgrade dependent packages to the latest version (#657, #663)
• Upgrade development Node.js LTS (#658)

Fixed

• The default duration setting for custom defined transitions --marp-transition-duration was not working in Safari and Firefox (#665)

Added

• Add a delayed notification for reading Markdown from the stdin stream (#573, #644)

Changed

• Upgrade dependent packages to the latest versions (#648)
• Use arm64 hosted runner to build container image for ARM64 (#635, #637)

Fixed

• Improve bespoke transition animations for Safari compatibility (#572, #641)

Fixed

• Improve LibreOffice handling in experimental --pptx-editable option (#632)
  • Detect LibreOffice automatically that was installed in Windows by Scoop (#631, #632)
• Fix returning wrong file extension in concurrent requests on server mode (#633, #634)

Added

• Introduce parallelism for batch conversion: --parallel / -P (#509, #628, #629)
• [Experimental] --pptx-editable option to convert Markdown into editable PPTX (#166, #298, #626)

Fixed

• Make the preview option stable against occasional invalid URL errors (#627)
• Generate V8 compile cache when building container image (#630)

Added

• Make faster launching CLI on Node.js 22.8.0 and later, by enabling Node.js compile cache with module.enableCompileCache() (#624)

Changed

• Upgrade dependent packages to the latest versions (#623, #625)
• Upgrade Marpit to v3.1.2 (#625)
• Upgrade Marp Core to v4.0.1 (#625)
• Upgrade Node.js LTS version to the latest version (#625)

Added

• Allow to disable GPU use of Chrome through CHROME_DISABLE_GPU environment variable (#592, #617, #618)

Fixed

• Fix packaging script for standalone binaries (#616)

⚡️ Breaking

• End-of-Lifed Node.js 16 is no longer supported, and required Node.js 18 and later (#591)
• Upgrade Marp Core to v4.0.0 (#591)
  • The slide container of built-in themes became the block element and adopted safe centering
  • Relax HTML allowlist: Allowed a lot of HTML elements and attributes by default
• The container image is now based on Debian instead of Alpine (#608)

Added

• Initial support for Firefox / WebDriver BiDi protocol during conversion (#565, #597)
• --browser and some related options to control the b