Time Picker for 4.0 and some other questions

[Malin Ljungh <ma...@kvadrat.se>]

I'm using Tapestry 4.0 and need a time picker - is there any third party I
can use? Or what do I do?

I've seen the DropdownTimePicker in the 4.1 so I guess I should upgrade, but
I wonder if it's much work and if the release is stable? Is the 4.1 final?
Where can I find migration docs? (4.0 -> 4.1)

I've tried to search for info at http://tapestry.apache.org/ but I feel the
site is quite messy...

Cheers,
Malin