Redmine 3.4.4

db/migrate/20161010081301_change_issues_description_limit.rb

@@ -0,0 +1,12 @@
+class ChangeIssuesDescriptionLimit < ActiveRecord::Migration
+  def up
+    if ActiveRecord::Base.connection.adapter_name =~ /mysql/i
+      max_size = 16.megabytes
+      change_column :issues, :description, :text, :limit => max_size
+    end
+  end
+
+  def down
+    # no-op
+  end
+end