iTunes 12.5.3's changelog lists the same stability and performance improvements as iTunes 12.5.2, including a fix for an issue where albums may play in an unexpected order. A second fix resolves a problem that prevented lyrics from appearing while listening to Beats 1.
iTunes 12.5.3 can be downloaded immediately from the iTunes download page, and it should also be rolling out through the Software Update mechanism in the Mac App Store.
iTunes 12.5.3 has been released just four days after iTunes 12.5.2, and just over six weeks after iTunes 12.5.1 was released with a revamped Apple Music design.
Update: iTunes 12.5.3 has the same update changelog as iTunes 12.5.2 released last week, so what's new in today's update remains unclear. We will update this article if and when we learn more information.