Will this convert maps based on tier of map (ex. old T15 -> new T15) or by type of map (ex. old Tower -> new Tower)?
It should be by tier.
Thanks so much for that.
Quick question: In 3.6 unique maps did not reset on the atlas where in 3.5 they did. Is this (not resetting unqiue maps) something we can expect going forward now at least for those small atlas shuffles we are getting now every major patch?
Yes, Unique maps should stay completed when the Atlas reshuffles.
In December 2017, we introduced the Map Stash Tab, which allows players to conveniently store up to 72 of every type of Map from a specific series. At the time it was introduced, there were four series of maps. Late last year, we started introducing a new series of maps from the Betrayal release onwards. While this doesn't affect League players, it had bad consequences for Standard players. This news post explains what we're doing about it.
This weekend we've prepared something special for you! First of all, it's Super Stash Sale time, where we discount every type of Stash Tab including the new Unique Collection Tab! Second of all, there is a new Extinction Armour Set for those of you who prefer a twisted and gory look for your characters. We're also holding a huge Fire and Ice-themed sale with many awesome microtransactions available at discounted prices. 
devtrackers.gg
