The most critical single-player fix addresses a game-breaking glitch where the system completely freezes during the transition to the after defeating the Elite Four. Update 1.4 completely clean-sweeps this memory-leak issue. 2. Online Matchmaking Glitch Correction

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Update 1.4 is a software patch released by Game Freak and Nintendo to address lingering bugs, performance issues, and online compatibility features within the Generation VI remakes.