Here is a history of changes to gsutil.

2.1     - Check to see if the password was accepted.
	- Check all results more thoroughly.

2.0     - Work with firmware 1.0.6.x
	- I need to test this with 1.0.5.11 still; I hope I didn't break it,
	  but I accidentally upgraded my second phone and can't test it
	  now.

1.2	- Display version numbers of firmware (-e)
	- Refuse to run if can't find firmware release, because things
	  have changed radically from version 1.0.5.11 to 1.0.6.7.
	- Optionally read and write config files in Grandstream ascii
	  format (-o)

1.1	- Check to make sure gethostbyname finds phones before
	  proceeding (give a better error message)

1.0	- Initial release
