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activerecord 4.2.0

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

Gemfile:
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install:
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Versions:

  1. 8.1.3 March 24, 2026 (556 KB)
  2. 8.1.2.1 March 23, 2026 (555 KB)
  3. 8.1.2 January 08, 2026 (554 KB)
  4. 8.1.1 October 28, 2025 (554 KB)
  5. 8.1.0 October 22, 2025 (554 KB)
  6. 4.2.0 December 20, 2014 (315 KB)
Show all versions (519 total)

Runtime Dependencies (3):

activemodel = 4.2.0
activesupport = 4.2.0
arel ~> 6.0
Show all transitive dependencies

Managed By:

Rails

Outside Contributors

Authors:

  • David Heinemeier Hansson

SHA 256 checksum:

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Total downloads 768,576,930

For this version 22,925,005

Version Released:

License:

MIT

Required Ruby Version: >= 1.9.3

New versions require MFA: true

Links:

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