From the waterfall software development model to agile software development. And from working with large teams (of 20 to 50 or more) for more than a year on each project to a small team (of 1 to 4) working on 2 week iterations (see Scrum). And as described in this older article, I switched my keyboard layout from QWERTY to Dvorak a few months back.
There are also other changes like starting this development blog, participating in the Philippine Ruby Users Group, and contributing to Rails. Using newer releases like Ruby 1.9 (only for playing around though) and Rails 2.0 for my new projects. From Ubuntu Dapper to Gutsy (I skipped Edgy Eft and Feisty Fawn). Et cetera.
2007 was fun! And I’m curious how this article will look like a year from now.