UBB.Developers Forums UBB.threads 7 Development Addons and Modifications [7.4+] RSS Topic Creator v1.1

1/ You could modify the script to support ATOM instead of RSS.
2/ You could modify the script to do #1, and along side the current RSS script, so you'll have two different processors.
3/ You could install a 3rd party feed agitator that exports everything in to an RSS 2.0 template.

I currently do #3 using https://tt-rss.org/
This also gives me the benefit of having feeds from multiple sources with hundreds of posts daily. Then applying a filter, for example, "Pixel" or "Nexus" and must include "Google." Then the UBB.threads RSS Topic Creator only downloads those items from custom feed that TTRSS made for me, with its own URL, in RSS 2.0 format.