This releases fixes a few bugs, brings a few improvements, and updates to the latest PHPMailer. This Advanceform_XH version requires PHP ≥ 5.5.4. See the changelog for details.
If you have Advancedform_XH 2.0, 2.1 or 2.2 installed, just use the update package, which only replaces the necessary files. Otherwise do a full install.
Report bugs and ask for support either on Github or in the CMSimple_XH Forum.