What the Heck Is Kingdom Hearts II.8?

Kingdom Hearts II.8 is a ridiculous name, so what's actually inside the package?
Kingdom Hearts II.8 is a ridiculous name, so what's actually inside the package?

Illustrated Portraits (Kingdom Hearts II HUD-Portraits) at Kingdom Hearts III Nexus - Mods and community

Kingdom Hearts II.8 includes Dream Drop Distance HD – Destructoid

KINGDOM HEARTS HD 2.8 Final Chapter Prologue

Kingdom Hearts series cloud versions for Switch launch February 10 - Gematsu

Kingdom Hearts III, II.8, Unchained χ & Union χ [Cross] Original Soundtrack

Kingdom Hearts HD 2.8 Final Chapter Prologue Review; Setting The Perfect Tone For Kingdom Hearts 3's Arrival –

Kingdom Hearts HD II.8 Final Chapter Prologue Icon by andonovmarko on DeviantArt

Kingdom Hearts 2.8 Full PS4 Review - EIP Gaming

Kingdom Hearts II.8 2.8 Final Chapter Prologue Sora and Mickey Disney Pin Rare

Kingdom Hearts HD II.8, Wiki