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activemodel 4.2.9

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

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install:
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Versions:

  1. 8.1.1 October 28, 2025 (69 KB)
  2. 8.1.0 October 22, 2025 (69 KB)
  3. 8.1.0.rc1 October 15, 2025 (69 KB)
  4. 8.1.0.beta1 September 04, 2025 (69 KB)
  5. 8.0.4 October 28, 2025 (67.5 KB)
  6. 4.2.9 June 26, 2017 (44.5 KB)
Show all versions (452 total)

Runtime Dependencies (2):

activesupport = 4.2.9
builder ~> 3.1
Show all transitive dependencies

Owners:

Authors:

  • David Heinemeier Hansson

SHA 256 checksum:

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Total downloads 759,734,418

For this version 14,896,861

Version Released:

License:

MIT

Required Ruby Version: >= 1.9.3

New versions require MFA: true

Links:

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