ActiveRecord ConnectionAdapters SchemaCache #connection attribute connection Ruby on Rails 6.0.6 Since v3.2.22.5 Last seen in v7.0.10 Available in: v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 Compare with: … v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.1.7.10 v7.0.10 No documentation comment.
