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activemodel 4.0.9

A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, observers, serialization, internationalization, and testing.

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install:
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Versions:

  1. 8.1.2 January 08, 2026 (69 KB)
  2. 8.1.1 October 28, 2025 (69 KB)
  3. 8.1.0 October 22, 2025 (69 KB)
  4. 8.1.0.rc1 October 15, 2025 (69 KB)
  5. 8.1.0.beta1 September 04, 2025 (69 KB)
  6. 4.0.9 August 18, 2014 (44.5 KB)
Show all versions (453 total)

Runtime Dependencies (2):

activesupport = 4.0.9
builder ~> 3.1.0
Show all transitive dependencies

Owners:

Authors:

  • David Heinemeier Hansson

SHA 256 checksum:

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Total downloads 796,001,520

For this version 131,171

Version Released:

License:

MIT

Required Ruby Version: >= 1.9.3

New versions require MFA: true

Links:

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