Compatibility dialog

To go to this dialog, you just need to click on the "Settings" icon in the main tool bar:

Then on the "Compatibility" tab.

A new option is added in 4D v16 on the Compatibility page: Use new architecture for application deployments.

• This option is checked by default for databases created with 4D v15 R4 and subsequent versions: the "new architecture" is automatically enabled; no additional setting is required in order to benefit from it.
• For compatibility reasons, this option is unchecked by default in databases converted from previous versions: you need to check it in order to benefit from the new features. 

This option is available for all applications starting with 4D v16. It allows you to enable or disable new mechanisms related to the deployment of 4D applications (it must be defined on the machine generating the final application). For more details about the mechanisms controlled by this option, see the Data file management in final applications and Management of connections by client applications sections.

Other compatibility options can appear in this dialog box. They are added gradually over the successive versions, so the older the version in which your database was created, the more options you will have:

For more information about these options, see Compatibility page.

The "Use 4DVAR Comments instead of Brackets" option was removed from the Compatibility page of this dialog box in 4D v16.