Try this:

https://www.posersoftware.com/article/575/unleash-your-creativity-with-poser-13s-new-features-and-tools

For tl;dr:

New Features in Poser 13

• Updated SuperFly render engine utilizing the latest open source Cycles engine.  GPU renders of complex scenes benchmark at under half the time required for the same scene on Poser 12.
• New Post FX options for rendered images including: denoise, exposure, saturation, gamma, brightness, contrast, bloom, blur and pixelate.
• Updated animation rendering system for better productivity rendering movie sequences.
• GPU rendering on remote nodes with Queue Manager allows creation of a powerful render farm on your local network
• New app launcher with Recent and Start Up scene templates
• Updated Walk Designer and Talk Designer for better compatibility with all figure types and support of imported libraries.
• Improved adaptive sampling for faster renders.
• Improved Intel Open Image Denoise (OIDN) that uses AI to denoise SuperFly renders.
• HDRI environment rendering for SuperFly.
• Enhanced shadow catcher and included HDRI environments enable realistic 360-degree VR-like environments inside Poser
• Improved morph and weight map copying system makes creating clothing easier.
• Streamlined installer, less than a 1/4 the size of previous version.
• Improved included content delivery using Poser's content library. One click installation of included and store assets.  Over 25 GB of updated and re-organized content from Poser versions over the years.
• Mac version coming soon as included update with Metal GPU support and M1/M2 support through Rosetta.
• New online help system works in your web browser with translation & bookmarks.
• Downloadable PDF version of the manual for off-line reading