Specifically, the new wishlist makes it possible to filter out all Early Access games, should you be the kind of person who'd rather wait for Version 1.0, and it's likewise possible to hide games that have a Steam page but aren't now available to purchase.
But it's the filters that are most welcome. In fact, the latter lets you sort according to the size of the discount: 50 percent, 75 percent, and so forth. You can filter your wishlist based on price, discount amount, genre, and tags. So now Steam displays the top-ranked tags for each item on your Wishlist.
Many players have reported that they find a promising game now in Early Access that they want to keep track of, but aren't interested in buying until the game has transitioned to full release. But between now and that title's release, it isn't always helpful to see those unreleased selections when you're shopping for something to play now. The new wishlist will display an "add to cart" option only for those games with a single purchasing option. So if you have anything on your wishlist, you can pick it up at any time during the sale without worry. On the surface this seemed like a straight-forward request, and in most cases it turned out to work just fine.
Another significant change that arrived to Steam Wishlists today allows players to add wishlisted games directly to their cart rather than the old-fashioned way of clicking a wishlisted item to go to a game's Steam Store page.
Valve says this feature wasn't previously available because it didn't "want to make assumptions about which version" of a game you were interested in when multiple editions of the same game were available.