KemonoDownloader 5.5.1 Release

Patch Update

Welcome to the KemonoDownloader 5.5.1 release! This patch builds directly on the performance and stability improvements from v5.5.0 with a significant fix for download completion tracking. KemonoDownloader remains fully open-source, and you can use, modify, and build the software for free under its license.

Changelog

• Implemented Widget Caching:
• Improves responsiveness during filtering and "select all" operations (#45).
• Added HTTP Connection Pooling:
• Reuses TCP connections to reduce overhead (#45).
• Optimized Logs Window with Batched Updates:
• Prevents UI freezes by batching toHtml() updates every 500ms instead of on every log entry (#45).
• Refined File Completion Handling and Fixed Edge Cases:
• Improved reliability in file tracking and completion logic under various scenarios (#49).
• Fixed Filter Thread Crash on Large Post Sets:
• Resolved a race condition that could occur when rapidly applying filters on datasets with thousands of posts (#49).
• Fixed Download Completion Trigger (v5.5.1 Patch):
• Ensures completion is properly triggered for every post once all files are downloaded, fixing a regression introduced in v5.5.0 where completion would not fire consistently after full post downloads.

Pre-Compiled Binaries

To support the ongoing development and maintenance of KemonoDownloader, you can contribute to access pre-compiled binaries (executable files). Please choose the option that best fits your needs:

• Monthly Support (Recommended for regular users): Contribute to get binaries for all current and future versions. This helps sustain regular improvements and ensures you always have the latest features. Get binaries here.

• Single-Version Contribution (This version only): Contribute to get the binaries for Kemono Downloader v5.5.1 ONLY. This option supports the project while providing access to this specific version's executable files. Important: Future versions (5.6.0, 5.7.0, etc.) will require separate contributions. Get v5.5.1 binaries here.

Note: New versions are released regularly with bug fixes and improvements. If you plan to use the software more than once or want to receive updates, Monthly Support provides better value.

Available Binaries

• Linux (Arch-based): L-KemonoDownloader-5.5.1-1-x86_64.pkg.tar.zst
• Linux (Fedora 42): L-KemonoDownloader-5.5.1-1.fc42.x86_64.rpm
• Linux (Ubuntu Noble): L-KemonoDownloader-5.5.1-1.ubuntu-noble_amd64.deb
• macOS (ARM64): M-KemonoDownloader-5.5.1-arm64.dmg
• macOS (x86_64): M-KemonoDownloader-5.5.1-x86_64.dmg
• Windows (Portable): W-KemonoDownloader-5.5.1-x86_64-Portable.exe
• Windows (Installer): W-KemonoDownloader-5.5.1-x86_64.msi

Support the project by contributing: Get binaries for Monthly Support or Get v5.5.1 binaries.

Open-Source Availability

KemonoDownloader is and will always be open-source. The full source code, build instructions, and documentation are available in this repository. You're welcome to compile the software yourself or contribute to its development!

Support the Project

Your contributions through Ko-fi help keep KemonoDownloader actively maintained, enabling continued improvements and new features. Thank you for supporting this project's sustainability!

Thank you for using KemonoDownloader!