About a month ago we released a new feature that allows users to upgrade their Sampa site from version 1 to version 2. Instead of letting all users do at once just to find out some small bug was causing some sites to lose all data, we took a very slow approach.
Basically, we created about 10 knobs to control which users would be displayed the option to upgrade. The knobs include things like number of blogs, number of photo albums, number of pages, etc.
We started slowly, found some bugs, fixed it, and kept increasing those knobs. They are still not at 100%, and we expect to take another month or so to let all users upgrade. This way we can find out issues with V2 and upgrade as they come, instead of all at once.
For now, users are displayed a message asking them to upgrade, but they are not forced to do. That would be a second phase of our upgrade plan. We are hoping that by September or October there will be no more version 1 sites and we can "shutdown" that service and make it part of the memory of Sampa.
I'm the Co-founder & CTO of 
