I failed to notice that around January 18th, 2014, that this extension had updated to 6.11. Probably because things had continued to work, and I didn’t make any changes.
The code had bumped limits from 60 to 160, but the options dialog was still limited to 60 rows.
I applied my patch to bring the options dialog to 128 rows.
A couple hours later, 7.0 was released.
The code was back to a limit of 60, so I patched it all back to 128.