As a roundabout solution for now, you can manually add the software filter to the end of the what's new url. You'll need to get the specific wording from using the current built-in filters on the right side of the page when looking in specific categories, but once you have your new what's new filtered urls, you can bookmark them.

Some examples:

https://www.renderosity.com/mod/bcs/?br=new&software=Daz+Studio+4

https://www.renderosity.com/mod/bcs/?br=new&software=Daz+Studio+4.9+ONLY

https://www.renderosity.com/mod/bcs/?br=new&software=Poser+11

https://www.renderosity.com/mod/bcs/?br=new&software=Poser+Pro+2014+%26+Game+Dev

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Daz, Blender, Affinity, Substance, Unity, Python, C#