A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, serialization, internationalization, and testing.
Required Ruby Version
>= 2.2.2
Authors
David Heinemeier Hansson
Versions
- 8.1.3.1 July 29, 2026 (69.5 KB)
- 8.1.3 March 24, 2026 (69.5 KB)
- 8.1.2.1 March 23, 2026 (69 KB)
- 8.1.2 January 08, 2026 (69 KB)
- 8.1.1 October 28, 2025 (69 KB)
- 5.1.2 June 26, 2017 (50 KB)