Rocket League will change how upgrades and rewards work next month when Crates are replaced by Blueprints. Paid Crates are on their way out, and Blueprints will use a new premium currency, Credits (which are replacing Keys). Blueprints will let you see exactly what they're going to build, so it's always clear what you're getting for your money. This will take some of the randomness out of the loot game in Rocket League.

Developer Psyonix has further detailed how Blueprints will work in a new post on the official Rocket League website. Once the update hits, online matches will begin to reward players with "revealed" Blueprints. You can build the items on these Blueprints by spending Credits, hold onto them for a while, or trade them with another player. Any existing Crates that you have in your inventory when this update occurs will change to "unrevealed" Blueprints, which you can then change to revealed Blueprints at no extra cost. By the way, you can buy Cheap Rocket League Credit from 5mmo.com, where you can enjoy a 3% discount by using the code “5MMO”.
 
Players will be able to trade Blueprints with one another, just as they're currently able to trade items (which will remain the case going forward). You'll be able to trade revealed Blueprints, as well as items that have been built from Blueprints, as well as Credits (although you cannot trade Credits for other Credits or give them away, only for items and Blueprints). You will not be able to trade Unrevealed Blueprints.

Decryptor Keys used to unlock Crates will no longer be a part of the game. If you have any Decryptors, they will be converted into "Bonus Gifts" which can be opened for free. Bonus Gifts will contain items from the Vindicator Crate series and the first Blueprint Series, the "Revival" Series. The Revival Series will contain fan-favourite items throughout Rocket League's history.

Psyonix says unrevealed Blueprints cannot be traded; in some cases, Credits will be tradable. Credits will not be tradable if they’re traded for credits and they will not be tradable ‘for nothing.’ Players likewise will not be able to trade items from the Item Shop, Bonus Gifts, nor Esports Shop items.