Add Ruby 3.4 support to CircleCI

.circleci/config.yml

@@ -424,6 +424,11 @@ job_configuration:
     ruby_version: 'ruby-3.3.0'
     image: ghcr.io/datadog/images-rb/engines/ruby:3.3
     resource_class_to_use: medium+
+  - &config-3_4
+    <<: *filters_all_branches_and_tags
+    ruby_version: 'ruby-3.4.0'
+    image: ghcr.io/datadog/images-rb/engines/ruby:3.4
+    resource_class_to_use: medium+
     # ADD NEW RUBIES HERE
   - &config-jruby-9_2 # More recent release of 9.2
     <<: *filters_all_branches_and_tags
@@ -456,6 +461,7 @@ workflows:
             - test-3.1
             - test-3.2
             - test-3.3
+            - test-3.4
             # ADD NEW RUBIES HERE
             - test-jruby-9.2
             - test-jruby-9.3
@@ -504,6 +510,11 @@ workflows:
           integration_apps: 'rack rails-six rails-seven sinatra2-classic sinatra2-modular'
           ruby_version: '3.3'
           <<: *filters_all_branches_and_tags
+      - orb/build_and_test_integration:
+          name: build_and_test_integration-3.4
+          integration_apps: 'rack rails-six rails-seven sinatra2-classic sinatra2-modular'
+          ruby_version: '3.4'
+          <<: *filters_all_branches_and_tags
       # ⬆️ **Note**: If add/remove test apps above, remember to also copy-paste the changes to the "edge" workflow further down the file.
       #
       # ADD NEW RUBIES HERE
@@ -563,6 +574,14 @@ workflows:
           name: test-3.3
           requires:
             - build-3.3
+      - orb/build:
+          <<: *config-3_4
+          name: build-3.4
+      - orb/test:
+          <<: *config-3_4
+          name: test-3.4
+          requires:
+            - build-3.4
       # ADD NEW RUBIES HERE
       - orb/build:
           <<: *config-jruby-9_2

appraisal/ruby-3.4.rb

@@ -88,13 +88,20 @@
 build_coverage_matrix('elasticsearch', 7..8)
 
 appraise 'relational_db' do
-  gem 'activerecord', '~> 7'
+  # ActiveRecord locked because tests are failing with 7.1, which was attempted as a part of Ruby 3.4 testing in CI.
+  # All existing relational_db configurations use ActiveRecord 7.0. ActiveRecord 7.1 is tested as a part of rails71
+  # appraisal configurations. The latest version of sqlite3 (i.e. 2+) requires ActiveRecord 7.1, so sqlite3 version
+  # has been locked as well.
+  #
+  # TODO: Repair the failures with ActiveRecord 7.1 in this configuration and remove the locked version.
+  # TODO: After ActiveRecord is upgraded to 7.1+, sqlite3 can be unlocked as well.
+  gem 'activerecord', '~> 7.0.0'
   gem 'delayed_job'
   gem 'delayed_job_active_record'
   gem 'makara', '>= 0.6.0.pre' # Ruby 3 requires >= 0.6.0, which is currently in pre-release: https://rubygems.org/gems/makara/versions
   gem 'mysql2', '>= 0.5.3', platform: :ruby
   gem 'pg', platform: :ruby
-  gem 'sqlite3', '>= 1.4.2', platform: :ruby
+  gem 'sqlite3', '~> 1.4', platform: :ruby
   gem 'sequel'
   gem 'trilogy'
 end