[Snyk] Security upgrade rails from 2.3.14 to 5.0.0

[samawad]

Snyk has created this PR to fix 3 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 monumental upgrade, spanning three major versions (2.x → 3.x → 4.x → 5.x), which will require a near-complete application rewrite or a series of carefully planned, incremental upgrades. Each major version introduces significant architectural changes, API removals, and new framework conventions. Direct migration is not feasible.

Highlights:

• Rails 3: Introduces Bundler for gem management, a new routing DSL, and makes HTML escaping default to prevent XSS, requiring view and helper updates.
• Rails 4: Replaces attr_accessible with Strong Parameters, a fundamental change to how controller parameters are handled for security. Plugins from vendor/plugins are no longer supported.
• Rails 5: Requires Ruby 2.2.2+. Models now inherit from ApplicationRecord instead of ActiveRecord::Base. Callback chains are no longer halted by returning false; throw(:abort) must be used instead.

Source: Official Rails Guides
Recommendation: Do not merge directly. This upgrade requires a dedicated project. Follow the official Rails upgrade guides to migrate incrementally, one minor version at a time (e.g., 2.3 → 3.0 → 3.1, etc.), with 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-13378928	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378930	721
	Allocation of Resources Without Limits or Throttling SNYK-RUBY-RACK-13378932	721

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Allocation of Resources Without Limits or Throttling