When I update Lazarus from 0.9.28 to 0.9.30, there're some things make me unhappy.
First, I must install the packages such as lNet again.
Second, old version of fpc is not uninstalled by the installer and Lazarus 0.9.30 cannot find the correct fpc by itself.
When I update from 0.9.22 to 0.9.26, there is another trouble.
TForm added a property and that makes every lfm created in 0.9.22 need modified in 0.9.26