Velvet assassin 1.0.1 download. A 30-day free trial with all Nik Collection 7 plugins features unlocked.
System requirements

DxO PhotoLab (was DxO Optics Pro) provides a complete set of smart assisted corrections that you can manually fine-tune at any time. Take control on every aspect of your photos: effectively remove noise, get rid of light constraints, recover color details, apply sophisticated optical corrections, and enhance details.

macOS

• Intel Core™ i5 or higher
• 4 GB of RAM (8 GB recommended)
• 4 GB or more of available hard-disk space
• macOS 10.12 (Sierra), 10.13 (High Sierra), 10.14 (Mojave), 10.15 (Catalina)
• Adobe Photoshop CS5 (64 bits) through CC 2020
• Adobe Photoshop Elements 12 through 2020 (apart from HDR Efex Pro 2, which is not compatible with Photoshop Elements)
• Adobe Photoshop Lightroom 3 through Classic CC 2020

Windows:

• Intel Core® 2 or AMD Athlon™ 64 X2 or higher (Intel Core® i5 or higher recommended)
• 4 GB of RAM (8 GB recommended)
• 4 GB or more of available hard-disk space
• Microsoft® Windows® 7 (64 bits) with Service Pack 1, Microsoft® Windows® 8.1 (64 bits), or Microsoft® Windows® 10 (64 bits and still supported by Microsoft®)
• Microsoft Surface are not supported
• Adobe Photoshop CS5 (64 bits) through CC 2020
• Adobe Photoshop Elements 13 (64 bits) through 2020 (apart from HDR Efex Pro 2, which is not compatible with Photoshop Elements)
• Adobe Photoshop Lightroom 3 through Classic CC 2020
• Requirements to support HiDPI monitors:
  – Microsoft Windows 10.1607 and later
  – Adobe Photoshop CC 2015.5 and later (if launched from Adobe Photoshop)

GPU Compatibility:

• Starting from: NVIDIA GeForce 8 Series, ATI Radeon HD2000 Series, and Intel HD Graphics 2000 Series.
• If no compatible card is available, GPU acceleration will be disabled, and the CPU will be used.