From Bootstrap icon set to world-class icon library evolution
FontAwesome was originally designed by Dave Gandy as an icon set for Bootstrap. v1 was released as part of Bootstrap 2.x with about 100 basic icons. v2 expanded the collection to 200+ icons and began independent version management.
FontAwesome v3 became independent from Bootstrap, establishing itself as a standalone icon library with growing icon count.
v4 was a milestone, with icon count growing to 600+ across broader categories. Using CC BY 4.0 license, completely free and open source. This version made FontAwesome the de facto standard for web developers, and many projects still use v4 today.
v5 was a major architectural overhaul introducing three style prefixes (fas/far/fab), SVG framework, and over 1,500 free icons.
v6 brought semantic CSS prefixes, 6 free styles, over 2,000 free icons, and enhanced SVG framework with on-demand loading.
v7 is the latest major version with all free icons redesigned for smoother lines and unified visuals. SVG framework performance improved by 30%, with full ESM modular on-demand import support for the first time. Enhanced accessibility support, improved icon scaling and alignment. v7 continues the v6 class name system with minimal migration cost.