Many Kingdom hearts fans who bought the games on PC via Epic Games Store have been hit with some bugs or disappointed with the ports' performances, but Square Enix is slowly but surely trying to fix the games, and a new patch, version 1.0.0.8 dropped on September 21, 2021 - here are the patch notes.

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Kingdom Hearts HD 1.5 + 2.5 Remix contains the ultimate version, officially called "final mix" versions, of all the main games in the Action JRPG series by Disney, Square Enix, and Tetsuya Nomura. You have the very first Kingdom Hearts game, Re:Chain of Memories, Kingdom Hearts 2, and Birth by Sleep. HD cinematic summaries for KH 358/2 Days and Re:coded are also included. Long story short, it's the one compilation to play through if you want to immerse yourself into the series before Kingdom Hearts 3.

Note that the patch notes were officially published in Japanese and in English on the Square Enix Support website.

Kingdom Hearts HD 1.5 + 2.5 Remix PC Version 1.0.0.8 update patch notes (September 21, 2021)

â–  Fixed a bug where the application shuts down when using a video streaming application. (such as OBS, etc).
â–  Fixed a bug where the sound volume is reset to the default level when skipping events in Kingdom Hearts Final Mix.
â–  Another bug fixed. Where the player lost control of their character after taking damage while performing specific actions, until being hit again, in Hollow Bastion in Kingdom Hearts II Final Mix.
â–  Fixed a bug where sound effect volume increases when hitting an enemy multiple times with magic attacks in Kingdom Hearts II Final Mix.
â–  Fixed a bug where the game shuts down when losing connection to the controller while playing Castle Circuit in Kingdom Hearts Birth by Sleep Final Mix.

The previous patch was dropped back on July 27. So it's possible the next update will be coming in another two months. Tetsuya Nomura already teased several new developments for the series in 2022, when it'll celebrate its 20th anniversary.