I wasn't paying attention to D&D during 5e development and so know nothing of the D&DNext ruleset: can D&DNext material be run in 5e? Or did the rules change enough that there'll be mechanics, stats, spells referenced in the Next material that won't make sense in 5e-land?
What are the major differences between the final playtest package and D&D 5e Basic? describes some of the changes, but it doesn't quite hit my question. For instance, it mentions that proficiency bonuses are "now +2 to +6", but ithout knowing what they had been I can't guess as to whether numbers in published modules may need adjusting. That number, in particular, is both pretty impactful and pretty sensitive to alteration!
I guess I'm looking for report from anyone who's run Next-produced adventures in 5e of from anyone who's run those in Next and knows 5e well enough do speculate: will it take converting/translating to run a Next adventure in 5e, or are adjustments at the level of usual play-time ad-libbing?