They bring out new version of the MRE every four years. This most recent batch was introduced in 2017, hence Type 17.I mean, it's not really high tech, is it? China has been having those for years already, self-heating food.
Troops were complaining that Type 09 wasn't filling enough, so when Type 13 was introduced they just straight up gave you the main meal twice in one package lol. So then the complaint with Type 13 was that the main meal was quite big enough (if not a bit too much), and the MRE could use more little side stuff like deserts, which the Type 17 somewhat fixed, although still much room for improvement there compared to like German MRE.
The complaint with Type 17 seems to be that it doesn't come with any soft drink or anything like that and instead have a soup package, which is a pain in the ass to prep in the field since you need hot water. And in any case guys in the field prefer soft drink not soup. That's why you see in those UAV meal delivery videos they are air dropping cans of coke.
I recently looked this up and ordered four PLA MRE on AliExpress due to my wife doing a terrible job on lunch selection on our last ski trip.