Three biggest changes in my profession in the last 10 years...

Things that change our field are not generally the mechanics (e.g. languages), but how you do things.

Lego. We only have fours and eights but at least we don't have to derive everything from first principles. Patterns have made things a little bit easier.

The Broom. We can now clean with something more than a pair of tweezers. Eclipse and IntelliJ have given us refactoring tools. I expect they will be part of all development environments in the next five years.

Check it. We now check to see if what we did worked. Automated tests have taken the profession by storm.