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Add Ruby 4.0 to CI matrix #938

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Merged
mensfeld merged 1 commit into from
Dec 26, 2025
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Add Ruby 4.0 to CI matrix #938

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4 changes: 2 additions & 2 deletions .github/workflows/specs.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ jobs:
name: Specs
strategy:
matrix:
ruby: ['3.2', '3.3', '3.4']
ruby: ['3.2', '3.3', '3.4', '4.0']
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@coderabbitai coderabbitai bot Dec 26, 2025

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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🌐 Web query:

Ruby 4.0 release date official announcement 2025

💡 Result:

The official announcement for Ruby 4.0.0 was posted on December 25, 2025. [1]

Sources:

  • Ruby-lang.org — "Ruby 4.0.0 Released" (Dec 25, 2025). [1]

🌐 Web query:

ruby/setup-ruby GitHub action Ruby 4.0 support compatibility

💡 Result:

Short answer: As of now (Ruby 4.0 released Dec 25, 2025), ruby/setup-ruby does not yet list Ruby 4.0 as a supported release — the action's supported-versions docs currently stop at the 3.x series (you can use ruby-head as a temporary option). Sources: ruby/setup-ruby README and Ruby 4.0 release announcement. [1][2]

Recommended actions:

  • Use ruby/setup-ruby@v1 with ruby-version: 'ruby-head' to test against the latest source until the action adds official 4.0 builds. [1]
  • Watch the ruby/setup-ruby repo (or ruby-builder-versions.json) for an update adding 4.0, or open an issue if you need Windows/official builds. [1][2]

Sources:
[1] ruby/setup-ruby README (supported versions list).
[2] Ruby 4.0.0 release announcement (Dec 25, 2025).

🏁 Script executed:

#!/bin/bash
# Check project files for Ruby version constraints
echo "=== Gemfile (if exists) ==="
if [ -f Gemfile ]; then
  cat Gemfile
else
  echo "Gemfile not found"
fi

echo -e "\n=== .ruby-version (if exists) ==="
if [ -f .ruby-version ]; then
  cat .ruby-version
else
  echo ".ruby-version file not found"
fi

echo -e "\n=== gemspec files (if exist) ==="
fd -e gemspec --exec cat {} +

echo -e "\n=== Checking for ruby version constraints in any file ==="
rg "required_ruby_version|ruby.*['\"]3\.[0-9]|ruby.*['\"]4\.0" --type yaml --type ruby -A 2 || echo "No explicit constraints found"

Repository: ruby-shoryuken/shoryuken

Length of output: 154

🏁 Script executed:

#!/bin/bash
# Simplified check for Ruby version constraints
cd /tmp && timeout 30 cat .github/workflows/specs.yml 2>/dev/null || echo "Workflow file check skipped"

# Try to list Gemfile and .ruby-version
ls -la Gemfile .ruby-version .gemspec *.gemspec 2>/dev/null || echo "Standard Ruby files not found in expected locations"

# Check workflow file directly
head -50 .github/workflows/specs.yml

Repository: ruby-shoryuken/shoryuken

Length of output: 251

🏁 Script executed:

#!/bin/bash
# Find the specs.yml file and project gem files
echo "=== Finding workflow file ==="
git ls-files | grep -E "(specs\.yml|workflows)" | head -5

echo -e "\n=== Finding Gemfile and gemspec ==="
git ls-files | grep -E "(Gemfile|\.gemspec|\.ruby-version)" | head -10

echo -e "\n=== Reading .github/workflows/specs.yml ==="
git show HEAD:.github/workflows/specs.yml | head -50

echo -e "\n=== Checking for Gemfile ==="
git show HEAD:Gemfile 2>/dev/null || echo "Gemfile not in repository"

echo -e "\n=== Checking for .ruby-version ==="
git show HEAD:.ruby-version 2>/dev/null || echo ".ruby-version not in repository"

Repository: ruby-shoryuken/shoryuken

Length of output: 2081

Ruby 4.0 is not yet supported by ruby/setup-ruby (v1.276.0) — this workflow will fail.

Ruby 4.0.0 was officially released on December 25, 2025, but the ruby/setup-ruby action (v1.276.0) does not currently provide Ruby 4.0 binaries. The specs and integrations jobs will fail when attempting to run against Ruby 4.0.

Options:

  1. Use ruby-version: 'ruby-head' as a temporary workaround until ruby/setup-ruby adds official Ruby 4.0 support
  2. Wait for ruby/setup-ruby to release Ruby 4.0 support and update the action version
  3. Remove '4.0' from the matrix until the action supports it (your .ruby-version file is already set to 4.0.0)

Also applies to: 30-30

🤖 Prompt for AI Agents 
.github/workflows/specs.yml around line 12: the matrix includes ruby '4.0' but
ruby/setup-ruby v1.276.0 does not yet supply Ruby 4.0 binaries so the workflow
will fail; fix by removing '4.0' from the matrix or replace it with
ruby-version: 'ruby-head' as a temporary workaround (or update the action
version once ruby/setup-ruby adds 4.0 support); pick one of these actions and
update the matrix value(s) and/or action version consistently across the
workflow (also adjust other occurrences at lines ~30 if present).

runs-on: ubuntu-latest
steps:
- name: Checkout code
Expand All @@ -27,7 +27,7 @@ jobs:
name: Integrations
strategy:
matrix:
ruby: ['3.2', '3.3', '3.4']
ruby: ['3.2', '3.3', '3.4', '4.0']
runs-on: ubuntu-latest
steps:
- name: Checkout code
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