display dynamic list in Select widget

I am trying to fetch values from PostgreSQL database and want to show these values in drop down /select box in Bonita ui designer. I have study many tutorial but not found complete useful information. I am new to Bonita so confused about how to show list of values in select box and pass selected value to next step. I have worked with input field and passed user input value using process variable to next step but do not how to work with dynamic select box.

BonitaBPMCommunity-7.3.0 released?

There is the BonitaBPMCommunity-7.3.0 on sourceforge. Is this a beta or a stable release version?