ROSI Release Notes

Changes in v4.1.4:

• Loading SVG: Fixed an issue where the update checking loading icon was incorrectly sized.
• PKG: Updated packages.

Changes in v4.1.0:

• NEW - Preview: Added video preview before downloading so ROSI can show the title, uploader, duration, thumbnail, playlist info, and other basic metadata before saving.
• NEW - Enhancements: Added download options for embedded metadata, embedded thumbnails / cover art, subtitles with custom language codes, and SponsorBlock segment removal.
• Updater: Fixed macOS in-app updates where Restart Now did nothing after an update finished downloading.
• Updater: Fixed the Auto update channel so beta installs actually receive beta updates when that setting is selected.
• Downloads: Manual downloads and the queue no longer stomp each other. ROSI now blocks conflicting starts instead of silently killing one mid-run.
• Downloads: Queue downloads now use your chosen download folder instead of always saving to system Downloads.
• Conversion: Updated FFmpeg conversion to probe source codecs first, then copy compatible video/audio streams instead of re-encoding when possible.
• GPU detection: Updated hardware acceleration detection to probe actual FFmpeg encoders, cache the result, and only claim a GPU path when that encoder can run.
• Settings: Importing settings refreshes the UI in-place instead of forcing a full app restart.
• macOS: Closing the window now stops active downloads instead of leaving yt-dlp running headless in the background.
• Security: Tightened download URL validation, output path checks, ffmpeg path handling on import, and subprocess environment hardening.
• Typescript: Migrated the main renderer engine from JavaScript to TypeScript and widened renderer type coverage.
• UI: Split the renderer CSS into focused files, bundled local Manrope / IBM Plex Mono fonts, tightened CSP by removing remote Google Fonts, and shipped a broader accessibility and polish pass across the setup wizard, modals, queue, launch theming, and update progress UI.
• FFMPEG: Updated FFmpeg compliance docs, notices, source offer, and binary placeholders for FFmpeg 8.1 builds on Windows, Linux, and macOS arm64. macOS x64 stays on FFmpeg 8.0.1.
• Testing: Expanded automated coverage across the updater, downloader, preview pipeline, IPC validation, renderer modules, video info parsing, codec-aware FFmpeg args, GPU probing, settings migration, and queue wiring.
• PKG: Updated packages and bundled binaries.

Changes in v4.0.0:

Welcome to ROSI v4!

Version 4 is the biggest change to ROSI of all time! I have been working hard on this version to provide all the tools a person needs to easily download media :) and I hope you enjoy this new version with all of its new features! Checkout the notes below.

• Logo: ROSI has a new logo! Well maybe not fully new but its a new imagining of the ROSI logo for V4 and beyond! This is the first major logo redesign in ROSI's history!
• FFMPEG: Its here! FFMPEG binaries are now included within the app! No more "FFMPEG Required" warnings and having to manually install it yourself! ROSI now comes bundled with everything you need to start downloading!
• TypeScript: More typescript additions: Testing, hardening, bug fixes, you name it, we got it!
• NEW - Audio Downloads: Added download formats for audio only downloads!
• GPU detection: Improved the auto mode for GPU detection if a user chooses to convert a download.
• NEW - UI: The UI has been revamped again with a much more space efficient design with better UX/UI.
  • Themes: Say hello to theming in ROSI! Currently Dark, Light, and Purple (the old theme) are available!
• Misc: Much much more improvements to the code! Linux support has been improved and other aspects of the code now runs better!

FULL CHANGELOG:

ℹ️ Click here to see the full change-log for v4!

Nothing.. yet!

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ℹ️ Release Info

🔐 GPG Signing

ROSI Binaries (v2.1.2+) are GPG signed. You can verify the authenticity of your download by downloading the installer, its accompanying sig, and the public key which is available at: https://tuxedo.rosie.run/GPG/BurntToasters_0xF2FBC20F_public.asc

Windows Users: If you want a fully codesigned experience for Windows, check out the Microsoft Store version (Stable releases only).

ROSI's macOS release is the only GitHub release that is fully codesigned by a developer cert from apple. If you are looking for a version of ROSI that is codesigned for windows, check out the Microsoft Store version!

LTS Version

This is the first release of the brand new re-designed ROSI, bugs and instability is expected. If you prefer to still get maintenance updates (Like bug fixes and yt-dlp updates) for the previous version (3.x.x), checkout the ROSI-LTS repo! Until the next major release, version 3.x.x will receive bug fixes and yt-dlp updates!