When Capcom released the "Resident Evil 2 v20191218" update (sometimes referred to as Update 5), it did more than just patch a few bugs. This release on December 18, 2019, stands as one of the most significant milestones for the PC version of the acclaimed survival horror remake. More than a simple patch, it's a comprehensive package that wrapped up the game's post-launch support in a major way, acting as a sort of "definitive edition" for many in the PC gaming community, particularly those keeping an eye on the CODEX release of the game.
It's important to understand where the v20191218 update fits in the game's history. Over two years later, on June 14, 2022, Capcom released another major patch for Resident Evil 2 (2019) on PC. This added ray tracing, 3D audio, and support for newer consoles. However, it also controversially removed the option to use DirectX 11, effectively locking players into DirectX 12. While this update introduced new graphical features, it also broke many community-made mods and caused performance issues for some users with older hardware. exttoresidentevil2updatev20191218incldlccodex473418 better
Be aware that v20191218 predates several later additions: When Capcom released the "Resident Evil 2 v20191218"