 Required DLL pack — please install this update

Download and install the 20–25 DLL pack as well as running the existing Hollow updater. Players who keep an older DLL will miss new client features, including the expanded DP redemption window.

[Download the official 20–25 DLL pack](https://hollow.pw/shaiya/clients/Hollow-Client-Update-20-25.zip)

1. Close the game and launcher.
2. Download and extract the pack.
3. Copy sdev.dll into your existing Hollow client folder, beside Game.exe, and replace the old file when prompted.
4. Run your existing Hollow updater and let all updates through patch 25 finish before starting the game.

This is a DLL update pack, not a full client; your existing game files are required. You do not need a new updater for this release.

Some antivirus software may quarantine or remove the DLL. If the update disappears or the game reports a missing DLL, check your antivirus protection history and contact staff with the detection name. A missing core DLL can prevent the game from starting. Download only the official pack linked above.