Bottles 63.0: Eagle and Wine fixes in Linux

# Bottles 63.0: Eagle Improvements and Fixes for Wine Environments in Linux

March 22, 2026, marked the release of Bottles 63.0 — an open-source Wine prefix manager for running Windows applications on Linux. The key Eagle tool now determines optimal software launch settings by analyzing executables for frameworks, runtime environments, and protection mechanisms. The Python-based project has been in development since 2017, with the previous version released in February 2026. Testing confirmed on Notepad++ and Battle.net.

Eagle performs multi-stage analysis of binaries: scans resources, extracts installer contents (including Asar from Electron), detects anti-cheats, and suggests dependencies. This minimizes manual prefix configuration.

Key Fixes and Improvements

The release includes a switch to a new versioning system and a number of stability fixes:

• Fixed crash when detecting zero-byte ghost files;
• Alphabetical and numeric sorting of the bottles list;
• Fixed ICO to PNG conversion for some icons;
• Updated translations;
• Added proxy support for downloads;
• Automatic handling of manually added fonts;
• Check availability of Flatpak extensions (Gamescope, MangoHud, OBS);
• Improved Desktop Entry and Steam shortcuts;
• Fixed shlex.quote error in terminal.py when launching from CLI;
• Ignore .tmp files when restoring registry;
• Fixed missing paths to exe and icons;
• Eliminated hang on the app installation screen.

wezterm terminal support has been refined for seamless integration.

Wine and Proton Ecosystem Context

Bottles integrates with the latest Wine versions. Valve released Proton 10.0 (based on Wine 10.0) on November 13, 2025, for Steam games. Wine 11.5 is an experimental build from March 20, 2026, based on Win32 API for Linux, macOS, BSD. Stable Wine 11.0 was released on January 13, 2026, with Wine 12.0 expected in early 2027.

For mid/senior developers, Bottles simplifies Wine prefix deployments: managing runners, DXVK/VKD3D, overrides via GUI. Eagle automates framework detection (.NET, Electron), reducing debugging time.

What's Important

• Eagle Mode: in-depth exe analysis for auto-configuring dependencies and overrides;
• New versioning: semantic numbering for change tracking;
• Flatpak integration: Gamescope/MangoHud checks for gaming;
• CLI fixes: shlex.quote and terminal.py for scripting;
• Proxy support: simplifies corporate environments.

— Editorial Team