Add posthog-rails gem for automatic Rails exception tracking

.rubocop.yml

@@ -7,6 +7,10 @@ AllCops:
 Style/Documentation:
   Enabled: false
 
+Naming/FileName:
+  Exclude:
+    - 'posthog-rails/lib/posthog-rails.rb'
+
 # Modern Ruby 3.0+ specific cops
 Style/HashTransformKeys:
   Enabled: true

CHANGELOG.md

@@ -1,3 +1,13 @@
+## Unreleased
+
+1. feat: Add posthog-rails gem for automatic Rails exception tracking
+   - Automatic capture of unhandled exceptions via Rails middleware
+   - Automatic capture of rescued exceptions (configurable)
+   - Automatic instrumentation of ActiveJob failures
+   - Integration with Rails 7.0+ error reporter
+   - Configurable exception exclusion list
+   - User context capture from controllers
+
 ## 3.3.3 - 2025-10-22
 
 1. fix: fallback to API for multi-condition flags with static cohorts ([#80](https://github.com/PostHog/posthog-ruby/pull/80))

README.md

@@ -11,6 +11,10 @@ Specifically, the [Ruby integration](https://posthog.com/docs/integrations/ruby-
 >
 > All 2.x versions of the PostHog Ruby library are compatible with Ruby 2.0 and above if you need Ruby 2.0 support.
 
+## Rails Integration
+
+**Using Rails?** Check out [posthog-rails](posthog-rails/README.md) for automatic exception tracking, ActiveJob instrumentation, and Rails-specific features.
+
 ## Developing Locally
 
 1. Install `asdf` to manage your Ruby version: `brew install asdf`

lib/posthog/logging.rb

@@ -41,8 +41,8 @@ def logger
         return @logger if @logger
 
         base_logger =
-          if defined?(Rails)
-            Rails.logger
+          if defined?(::Rails)
+            ::Rails.logger
           else
             logger = Logger.new $stdout
             logger.progname = 'PostHog'