The only things that have really changed are the finishing compounds & chemical. (dope, paint). And where you can buy it.
The thing that really sucks is the fact that small brick and mortar, mom 'n' pop, hobby shops are closing in record numbers. Now you have to either mail order online, or go to one of the big box hobby shops. Where you're lucky to find a clerk not glued to his/her cell phone, or yammering to another clerk about all the stupid fishing tackle "jewlery" stuck in each others faces.
Building the planes is still the same.
You can find a lot of good information by looking through older posts on this forum.