4D Design Reference 4D v21  

Description and guide for using the features and editors found in the 4D Design environment (structure, forms, methods, menus, queries, etc.)

4D Server Reference 4D v21  

Describes the specific features of 4D applications in remote mode as well as 4D Server administration

Deprecated or Removed Features 4D v21  

4D ODBC Driver 4D v21  

4D SQL Reference 4D v21  

How to use the integrated SQL engine of 4D

4D XML Keys Backup 4D v21  

Description of the XML keys used in the Backup settings file

4D XML Keys BuildApplication 4D v21  

Description of the XML keys used with the BUILD APPLICATION command