v0.3.0

Beside for Windows v0.3.0 — Release Notes & Support Guide

Repository: https://github.com/thisma-labs/beside-windows-support
Milestone Tag: windows-v0.3.0
Release Date: 2026-11-12
Target Platform: Windows 10 (version 1809+, build 17763+) & Windows 11 (64-bit x64)

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What's New in v0.3.0 (Windows Desktop)

1. Wire-Speed Protocol & Control Frame Acceleration (TCP_NODELAY)

• All client and server TCP connections now dispatch protocol control messages (BatchFileStart, BatchFileAck, FileTransferComplete) immediately, eliminating Nagle's 40–200 ms ACK delay penalty on Wi-Fi adapters.
• Inbound Phone-to-PC uploads are up to 2.63x faster on large files and 2.41x faster on small multi-file batches.

2. Win32 Atomic Non-Overwriting Finalization

• Incoming files are finalized via Win32 MoveFileExW atomic rename, ensuring existing files are never overwritten (conflicts safely auto-suffix like report (1).pdf).

3. Simultaneous Multi-Device Sharing & Custom Device Groups (Beside Pro)

• Concurrent Multi-Peer Streaming: Select multiple paired devices and stream files, folders, or text snippets simultaneously over isolated Mutual TLS 1.3 streams.
• Custom Named Device Groups: Create and organize local device groups (e.g., Workstations, Living Room, Family) stored in device_groups.json with zero cloud dependencies.
• Resilient Offline Handling: Automatically detects offline group members, displays real-time connection status, and completes transfers to all available peers without stalling.

4. Desktop Ergonomics & Memory Optimization

• 3-Column architecture with zero-configuration concentric mDNS radar and theme-aware Dark / Light UI.
• Windows File Explorer right-click context menu ("Send with Beside") and classic shell:sendto integration.
• Windows system tray minimization with idle working-set trimming and instant restore.
• Interactive native WinRT toast notifications with inline Accept / Decline / Copy actions.

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Installation & Download Artifacts

Package	Format	File Name	Size	SHA-256 Digest
Inno Setup Installer	.exe	Beside-Setup-v0.3.0-x64.exe	12.42 MB	d18dddf7ecea4cb5807ca3c573fa46020ea080e665a3570547bec797c8f2bc71
Portable Archive	.zip	Beside-v0.3.0-Windows-x64.zip	14.84 MB	a5a641f47ffb67d635cfad001f1a51dbb42b2110122d57dad17e989cb31c1c01

Official Mirror Links

• GitHub Releases: https://github.com/thisma-labs/beside-windows-support/releases
• SourceForge Mirror: https://sourceforge.net/projects/beside-windows/files/latest/download
• Official Web Portal: https://beside-license-worker.khthisald.workers.dev/download/windows

Verify Checksum (PowerShell)

Get-FileHash -Algorithm SHA256 Beside-Setup-v0.3.0-x64.exe

Windows Defender SmartScreen Note: As a newly compiled release, SmartScreen may show an informative prompt on first run ("Windows protected your PC"). Click More info → Run anyway.

v0.2.0

Beside for Windows v0.2.0 — Release Notes & Customer Changelog

Target Repository: https://github.com/thisma-labs/beside-windows-support
Live Help Center: https://thisma-labs.github.io/beside-windows-support
Supported OS: Windows 10 (version 1809 / build 17763 or later) and Windows 11 (64-bit x64)
Release Tag: windows-v0.2.0 (or v0.2.0)

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Welcome to Beside for Windows v0.2.0

Beside for Windows is the official, dedicated desktop client for Beside, engineered to deliver wire-speed local peer sharing across your home and office Wi-Fi network with zero cloud dependencies.

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Key Features & Highlights in v0.2.0

1. Modern 3-Column Desktop Architecture

The Windows interface is designed natively for widescreen desktop displays:

• Left Column — Identity & Quick Access: Displays your machine identity, pinned Mutual TLS 1.3 certificate fingerprint, and quick system folder shortcuts (Downloads, Desktop, Pictures).
• Center Column — Concentric Radar & Dropzone: Live zero-configuration mDNS radar showing nearby active devices. Drag any file or entire folder tree directly into the radar dropzone to dispatch immediately.
• Right Column — Discovered Devices & Transfer Queue: Real-time peer status cards, active transfer progress docks, and a 60-second queue for incoming file and message approvals.

2. Deep Windows Operating System Integrations

• Windows File Explorer Context Menu: Right-click any file or directory in Windows File Explorer and click "Send with Beside". Dispatches instantly if one peer is online or presents a rapid target picker.
• Classic SendTo Integration: Fully registered in shell:sendto for fast keyboard dispatches.
• System Tray Mode: Runs quietly in the notification area. The right-click context menu lets you pause incoming transfers, toggle auto-accept, send files, or open settings.
• Interactive WinRT Toast Notifications: Actionable desktop notification banners with inline buttons: Accept, Decline, Copy text, and Open folder.
• File Explorer Reveal: Completed transfers automatically highlight received files in File Explorer using the Win32 SHOpenFolderAndSelectItems shell API.
• DPAPI Hardware Security: Master private identity keys are encrypted at rest using the Windows Data Protection API bound to your Windows user logon credentials.

3. Light and Dark Theme Support

• Full dark and light theme adaptation matching your Windows system theme preference.
• Manual toggle available directly in settings.

4. Wire-Speed TCP Streaming with Flat 64 KB Memory Usage

• Streams files directly to peer devices at native Wi-Fi speeds (up to 110 MB/s).
• Memory consumption stays flat at 64 KB regardless of whether you are sending a 500 KB document or a 40 GB 4K video.

5. Mutual TLS 1.3 & 8-Digit SAS Pairing

• Authenticate new devices in public environments (coffee shops, hotels, universities) with an unforgeable 8-digit visual SAS code derived from the TLS 1.3 Key Exporter.
• Once verified, peer device public keys are permanently pinned in your local TrustStore.

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Official Windows Distributions & SHA-256 Checksums

Package	Filename	Size	SHA-256 Checksum
Setup Installer (Recommended)	Beside-Setup-v0.2.0-x64.exe	12.25 MB	1f2f28b7e404519de9e5b836940315be26306a8b6f3c222762a6d67dc753ff8e
Portable ZIP Archive	Beside-v0.2.0-Windows-x64.zip	14.57 MB	bca3db28d780790797a4123f157bca3587243c6f581a1388b24975ab6cb467d9

Verifying Checksums in PowerShell

Always verify your downloaded binary integrity before running:

Get-FileHash -Algorithm SHA256 Beside-Setup-v0.2.0-x64.exe
# Expected: 1f2f28b7e404519de9e5b836940315be26306a8b6f3c222762a6d67dc753ff8e

Get-FileHash -Algorithm SHA256 Beside-v0.2.0-Windows-x64.zip
# Expected: bca3db28d780790797a4123f157bca3587243c6f581a1388b24975ab6cb467d9

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Upgrading & Uninstallation

• Upgrading: Simply run the new Beside-Setup-v0.2.0-x64.exe installer. It automatically closes any running instance of Beside and upgrades your installation in place while preserving your paired trusted devices and Beside Pro license.
• Uninstallation: Uninstall cleanly from Windows Settings → Apps → Installed apps → Beside. The uninstaller automatically releases your Beside Pro device activation slot when connected to the internet.