There's more than one Battlefield game on the market, so while EA and Visceral are issuing content for Battlefield Hardline, DICE is continuing to issue updates for Battlefield 4. The game's big Spring Patch was released a little while ago, adding some new content for no extra charge and offering a handful of fixes.
The Spring Patch includes five new weapons for Battlefield soldiers, as well as a whole new game mode called Gun Master. Battlefield 3 veterans will remember Gun Master as the team deathmatch mode that equips playhers with new weapons for every two consecutive kills. Gun Master will be playable across Battlefield 4's ten base game maps. Numerous fixes have also been introduced, including some further refinements to the game's netcode, including some much-needed fixes for client and server crash issues.
The full patch notes can be found on the Battlefield forums. The new Battlefield 4 Spring Patch is live right now.