One of the ongoing complaints against Pokemon GO is that there's not enough depth to the gym mechanics. And while their evolution is a long, long running process, Niantic has announced some changes that should make the process of training gyms less arduous.
In a post on the official Facebook GO page, the developers have revealed that players will be able to bring six Pokemon to friendly gyms instead of one. The move is designed to allow more trainers to contribute to gyms, regardless of their level.
The flipside is that it should be much easier to train gyms to their maximum level. It should also put a stop to people dropping a crappy Magikarp on a gym just so they can continually grind with a Caterpie for prestige. It's not known whether the adjustment of the Pokemon's CP "during your training session to generally match your Pokemon's battle capabilities" will impact prestige earned, however.
Niantic didn't reveal when the upcoming patch would be released, although following previous updates trainers should expect the new version to go live before the middle of next week, if not sooner.