The Basic version includes a powerful firewall engine that works alongside the Windows firewall.

This build introduces stable compatibility across , allowing the network engine to execute smoothly on modern architecture. You can now implement GlassWire on: Microsoft Surface mobile devices

for using GlassWire (e.g., finding a data leak, blocking specific apps, or just monitoring usage)? GlassWire Software Version Changes List

Crucially, this version predates the aggressive shift toward subscription nag screens. The "Upgrade to Pro" button exists, but it is polite—a static link, not an intrusive modal dialog.

Because GlassWire’s official site now promotes v4.x, you need to look for archived versions. Reliable sources include: