Yogi,
I have upgraded to 4.1 as a new project location -
https://bitbucket.org/red1/org.lib.mfg4I have exported its binary to
http://sourceforge.net/projects/red1/files/LiberoManufacturing/ (org.lib.mfg4<timestamp>.jar)
The org.libero.manufacturing remains usable for iDempiere 3.1. Those who migrated can just replace the plugin. It is backward compatible.
All my new changes will also be in incremental 2Packs so as not to break previous users.
Thank you for informing and keep sending me feedback.
Kind regards
red1