If there was no upgrade prompt the average user would never upgrade. A lot of the upgrades include changes that are very important for the health of the network, without them it would not be near as good as it could be.

One of the best things about BearShare is that it does have a lot of upgrades. BearShare did not start out as the best client, but because BearShare has a faster rate of development them most other clients, it is becoming better faster. And yes with development comes upgrades. So even though upgrading is a pain in the a** I still look forward to doing it.