A method and system for process control configuration changes are described. In one embodiment, a method for switching from a first control algorithm to a second control algorithm in a continuous process control system is described. The method, in the one embodiment, includes executing the first control algorithm, determining to switch from the first control algorithm to the second control algorithm, and executing the second control algorithm. For at least a first execution of the second control algorithm, at least one state variable used in the second control algorithm is adjusted.