I am not referring to air burst rounds. The British Army used H&K AG36 UGLs with standard 40 mm LV grenades to good effect with the FC.
STK and Nammo have developed airburst LV 40 mm rounds but whether these have been adopted by any army in any significant amount is unclear.
The trend is also for medium velocity 40 mm rounds effective to 600 to 800 m ranges, thermobaric rounds , inert munitions etc.