With TextExpander 6 for Mac, along with TextExpander 4 for iPhone and iPad, developer Smile is introducing a paid syncing and management service for your snippets.
This is kind of a bummer. I've been using Text Expander forever, and I mostly love it, but they're money pinching over the years has really killed it for me. $20 for big updates, and now wanting a monthly fee just to stay in sync. No thanks, I'll stick with my old version.