About Optiscaler Client
OptiScaler Client is a modern, high-performance desktop utility designed to simplify the installation, management, and update of the OptiScaler mod across your entire game library.
Optiscaler Client 1.0.6.1
OptiScaler Client is a modern, high-performance desktop utility designed to simplify the installation, management, and update of the OptiScaler mod across your entire game library.
- By Optiscaler-Client
- Open Source
- Portable
- Updated Aug 18, 2026
What's new in 1.0.6.1
What's Changed
This update brings several bug fixes, including improvements to manually added games, profile parameters, FSR 4 INT8 on RDNA2, and NukemFG detection. It also adds a new Check for Updates option and clarifies app profile behavior. Finally, a known FSR 4.1.1 RDNA2 driver regression is documented, with 4.0.2c recommended as a workaround.
Changelog
Fixes
- Fixed a bug where the remove game icon disappeared for games that had been previously added manually.
- Fixed a bug where manually added games were no longer recognized as such after an update.
- Fixed a bug where modifying a non-existing parameter in a profile would not add it to the profile.
- Fixed a bug where, after updating the client from 1.0.5 to 1.0.6, games would no longer launch on RDNA2 GPUs using FSR4 INT8 4.0.2c.
- Fixed a bug where NukemFG (DLSSG-to-FSR3) was automatically enabled even in games without native DLSS Frame Generation support, causing OptiScaler to prompt the user to "enable Frame Generation" for an option the game does not actually have.
New
- Added a Check for Updates button under Help to manually check for a new version.
- Clarified that app profiles are custom .ini files.
Known Issues
- FSR4 INT8 4.1.1 may cause black screens, ghosting, or stuttering on RDNA2 GPUs (Radeon RX 6000 and APUs based on this architecture). This is an AMD driver regression, not a bug in this app or OptiScaler, and there is currently no ETA for a fix from AMD. Workaround: Use FSR4 INT8 version 4.0.2c instead of 4.1.1 on RDNA2 GPUs.
Full Changelog: OptiscalerClient-1.0.6...OptiscalerClient-1.0.6.1
Technical details
| Publisher | Optiscaler-Client |
|---|---|
| Version | 1.0.6.1 |
| Release date | 2026-08-18 |
| License | GPL-3.0 |
| Installer type | zip |
| Architecture | x64 |
| Package ID | Agustinm28.OptiscalerClient |
Install Optiscaler Client from the command line
- Install with Windows Package Manager
winget install --id=Agustinm28.OptiscalerClient -e- Update to the latest version
winget upgrade --id=Agustinm28.OptiscalerClient -e- Uninstall
winget uninstall --id=Agustinm28.OptiscalerClient -e
Optiscaler Client version history
1.0.5 May 2, 2026
What’s Changed
This update introduces Linux support (tested on Ubuntu, CachyOS, and Bazzite) featuring a dedicated GPU detection system and Steam runtime optimizations. A new Custom Version Management system has been implemented, allowing the use of personal OptiScaler, FakeNVAPI, and NukemFG builds. Additionally, FSR 4 INT 8 is now automatically selected based on GPU architecture, and the update includes advanced library filters and an anti-cheat warning system.
Changelog
Added
- Linux Platform Support
- Compatibility has been added for Ubuntu, CachyOS, and Bazzite.
- A GPU detection base for Linux was implemented using sysfs and system tools (by @RafaelHGOliveira).
- Game scanning logic was adapted for Steam and custom sources on Linux (by @RafaelHGOliveira).
- Important exclusions regarding Proton and the Steam runtime were added (by @RafaelHGOliveira).
- GPU family detection by ID was implemented to correctly display the model in the main window.
- Custom Version Management
- Support for adding and managing personal or custom versions of OptiScaler, FakeNVAPI, and NukemFG was added.
- Custom versions now appear under a dedicated "Custom" tab in the game management window.
- Any version can now be set as the system default through the version management menu.
- Advanced Scanning Filters
- New filters in the scanning window allow toggling between three modes:
1. Scan All: Includes games where compatible upscaler DLLs are not detected.
2. …
Frequently asked questions
Is Optiscaler Client free?
Yes. Optiscaler Client is free and open-source software released under the GPL-3.0 license.
What is the latest version of Optiscaler Client?
The latest version is 1.0.6.1, released on Aug 18, 2026.
Is it safe to download Optiscaler Client?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 78781880822fae472409bf59eeb060d4d77bf38e17cad5b5bb675d0acf9a3ef6.
Which Windows versions does Optiscaler Client support?
Optiscaler Client runs on Windows and is available for 64-bit (x64) systems.
How do I uninstall Optiscaler Client?
Open Settings › Apps › Installed apps, find Optiscaler Client and select Uninstall. From the command line, run winget uninstall --id=Agustinm28.OptiscalerClient -e.
Is there a portable version of Optiscaler Client?
Yes. Optiscaler Client is available as a portable ZIP archive (OptiscalerClient-1.0.6.1-win-x64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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