diff --git a/lib/application_checker.rb b/lib/application_checker.rb
index c4bec6c..99e56aa 100644
--- a/lib/application_checker.rb
+++ b/lib/application_checker.rb
@@ -51,7 +51,7 @@ module Rails
         end
       end
       
-      def check_validation_methods
+      def check_validation_on_methods
         files = []
         
         ["validate_on_create", "validate_on_update"].each do |v|
@@ -61,13 +61,31 @@ module Rails
         
         if files
           alert(
-            "Removed validate_on_* methods",
-            "Validate-on-callback methods (validate_on_create/validate_on_destroy) have been removed",
+            "Updated syntax for validate_on_* methods",
+            "Validate-on-callback methods (validate_on_create/validate_on_destroy) have been changed to validate :x, :on => :create",
             "https://rails.lighthouseapp.com/projects/8994/tickets/3880-validate_on_create-and-validate_on_update-no-longer-seem-to-exist",
             files
           )
         end
       end
+      
+      def check_before_validation_on_methods
+        files = []
+        
+        %w(before_validation_on_create before_validation_on_update).each do |v|
+          lines = grep_for(v, "app/models/")
+          files += extract_filenames(lines) || []
+        end
+        
+        if files
+          alert(
+            "Updated syntax for before_validation_on_* methods",
+            "before_validation_on_* methods have been changed to before_validation(:on => :create/:update) { ... }",
+            "https://rails.lighthouseapp.com/projects/8994/tickets/4699-before_validation_on_create-and-before_validation_on_update-doesnt-exist",
+            files
+          )
+        end
+      end
 
       # Check for deprecated router syntax
       def check_routes
diff --git a/test/application_checker_test.rb b/test/application_checker_test.rb
index d0b23df..1aa2d46 100644
--- a/test/application_checker_test.rb
+++ b/test/application_checker_test.rb
@@ -58,11 +58,18 @@ class ApplicationCheckerTest < ActiveSupport::TestCase
     assert @checker.alerts.has_key?("Soon-to-be-deprecated ActiveRecord calls")
   end
   
-  def test_check_validation_methods
+  def test_check_validation_on_methods
     make_file("app/models", "post.rb", "validate_on_create :comments_valid?")
-    @checker.check_validation_methods
+    @checker.check_validation_on_methods
     
-    assert @checker.alerts.has_key?("Removed validate_on_* methods")
+    assert @checker.alerts.has_key?("Updated syntax for validate_on_* methods")
+  end
+  
+  def test_check_before_validation_on_methods
+    make_file("app/models", "post.rb", "before_validation_on_create :comments_valid?")
+    @checker.check_before_validation_on_methods
+    
+    assert @checker.alerts.has_key?("Updated syntax for before_validation_on_* methods")
   end
 
   def test_named_scope_left_over