On one of my Mac computers, SourceTree told me there was new version 2.5.3 (June 15) and I let it update. That installation shows v2.5.3(115). The Release History on that box shows 2.5.3 is the latest. On my other Mac computer, I have 2.5.2 and it sees no updates. The Release History on that box shows 2.5.2 is the latest.
What gives?