The update introduces several notable features:

• New capabilities for encoding in Panasonic AVC 100 and 50 MXF Op Atom formats.
• An additional option for encoding LPCM audio in QuickTime using big endian format.
• Improvements in default alpha channel mode interpretation for certain QuickTime files.
• Corrections to path separator inconsistencies in project settings on Windows platforms.
• Fixes for issues where some Sony XAVC H clips appeared as offline.
• Resolution of a trimming issue affecting media management of Sony 8K X-OCN clips.
• Enhancements to overall performance and system stability.

System Requirements

For a smooth operation of DaVinci Resolve 18.6.6, systems must meet the following minimum requirements:

For macOS Users:

• macOS 12 Monterey or newer.
• At least 8 GB of system memory, recommended 16 GB for using Fusion.
• Blackmagic Design Desktop Video version 12.0 or later.
• An integrated or discrete GPU with a minimum of 2 GB VRAM, supporting Metal or OpenCL 1.2.

For Windows Users:

• Windows 10 Creators Update or later.
• A minimum of 16 GB system memory, with 32 GB recommended for Fusion users.
• Blackmagic Design Desktop Video 10.4.1 or later.
• An integrated or discrete GPU with at least 2 GB of VRAM, compatible with OpenCL 1.2 or CUDA 11.
• Appropriate NVIDIA/AMD/Intel GPU driver version as required by the GPU.

For Linux Users:

• Rocky Linux 8.6 or CentOS 7.3.
• 32 GB of system memory.
• Blackmagic Design Desktop Video 10.4.1 or later.
• A discrete GPU with at least 2 GB of VRAM, supporting OpenCL 1.2 or CUDA 11.
• Necessary NVIDIA/AMD driver version as per the GPU requirement.

This comprehensive update is designed to enhance the user experience across a wide range of editing, color correction, and media production tasks, ensuring smoother workflows and compatibility with various formats and codecs.

News source: https://www.blackmagicdesign.com/support/family/davinci-resolve-and-fusion