Typically, a "CODEX update" includes only the delta files needed to bring an existing installation up to the new version, along with an updated crack to ensure the game remains playable without digital rights management (DRM). Patch Notes - Journey Wiki
Sound effects and music were re-tuned to be closer to the high-quality PlayStation versions of the game. Journey.Update.v1.65-CODEX.rar
Improved music triggers and transitions across almost every level, resolving issues where audio cues would sometimes loop incorrectly or fail to play. Visual & Movement Fixes: Typically, a "CODEX update" includes only the delta
The patch added or clarified numerous sounds for environment objects like carpets, banners, glowing symbols, shrines, and sandfalls. Visual & Movement Fixes: The patch added or
CODEX was active from 2014 until their retirement in February 2022.
The (released officially around July 15, 2020) is known as the "Audio Patch" . It is considered a significant update because it addressed many of the technical sound issues present when the game first launched on PC. Key Improvements in v1.65
The file is a community-released update package for the PC version of the atmospheric adventure game Journey .