In 95% of all time, Wix-Apis are stable.
Only if it comes to —> UPDATING-PROCESSES <— sometimes you will get some troubles. But normaly after 1-2weeks most of BUGS are eleminated again.
Yes, not the best way to provide users new UPDATES including new APIs, but at the end ----> We all are programmer → and we all know how fast BUGS can be coded into a working code.
Normaly i would say → !!! NEVER TOUCH A RUNNING (WORKING) SYSTEM !!!
But in this case this sentence do not work 