[Snyk] Security upgrade rails from 2.3.14 to 5.0.0

[samawad]

Snyk has created this PR to fix 1 vulnerabilities in the rubygems dependencies of this project.

Snyk changed the following file(s):

• example/rails2.3/Gemfile

⚠️ Warning

Failed to update the Gemfile.lock, please update manually before merging.

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This is a multi-generational upgrade across three major versions (3.0, 4.0, 5.0) and requires a complete, staged application migration. A direct upgrade is not feasible. Key breaking changes include the introduction of the Asset Pipeline, Strong Parameters for security, and fundamental changes to model and controller architecture.

Highlights:

• Rails 2.3 → 3.0: The routing system was rewritten, dependency management moved from config.gem to Bundler and the Gemfile, and HTML output is now escaped by default to prevent XSS attacks.
• Rails 3.2 → 4.0: attr_accessible is removed in favor of Strong Parameters, a critical security change requiring significant controller refactoring. vendor/plugins is no longer supported.
• Rails 4.2 → 5.0: Requires Ruby 2.2.2+. Models now inherit from ApplicationRecord, and ActionController::Parameters no longer inherits from Hash, which may break parameter manipulation.

Source: Ruby on Rails Guides
Recommendation: Do not attempt a direct upgrade. Follow the official Rails migration guides to upgrade one minor version at a time, starting with the upgrade from 2.3 to 3.0, and ensure extensive testing at each step.

Notice 🤖: This content was generated using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

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Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13052974	696

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• Check the changes in this PR to ensure they won't cause issues with your project.
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🦉 Allocation of Resources Without Limits or Throttling