v2.20b2
-----
- I have turned off file compression by default as it is not usually required and ironically where there were previously memory issues (and the need for compression is more likely) it is currently causing problems. I will resolve this problem later, but in the meantime if you need to compress the feeds, you can do so manually.

v2.20b1
-----
- This new release reduces the memory requirements of Feedmachine. Try this beta if your catalog is large and you are experiencing memory problems. This is currently a beta because some feed configurations are quite complex and the new handling could potentially (although unlikely) cause problems.

More...