My views have been consistent for many many years now, and my only major changes have been drifting slightly leftward on most issues whenever I become more informed on them. Things like the minimum wage, gun control laws, or environmental safety, that I was formerly ambivalent on, I became more informed on and drifted leftward. But these things are not any sort of major change. I viewed myself as a Social Democrat several years ago, and I view myself as more of an out-and-out Socialist now. Though, that's not a very big leap.
My biggest changes have mainly just been my approach to issues and how much I know about them. There's been no seismic shifts. I've also become much less tolerant of libertarian absolutes on social issues, and I suppose I've become a smidge more authoritarian in general.
I've also changed a lot in how I view democracy and our system of government, but such things don't impact my overall philosophy. In short, I haven't changed much.
I've always been perplexed by the frequent (and rapid!) changes some folks on this forum have.
As have I!