Microsoft made available at the end of the day Friday, May 29, the anticipated Windows 10 preview build 10130 for PCs.
The new build is for Windows Insiders in the Fast Ring, and is primarily about more polish and small improvements, such as the inclusion of new icons. (The image below is from Microsoft and shows the new Windows 10 icons.)
Other new changes in this build include Taskbar animations for actions like moving files and downloads and some more Start tweaks. Microsoft has refined the Jump Lists user interface so it's more similar to the rest of the new UI for Start.
There are also some tweaks to Continuum -- Microsoft's technology for making switching between tablet mode and PC mode -- so that Tablet mode works more like it did in Windows 8.1. With this build, users also can pin and unpin the Cortana pane, Favorites pane, Reading list pane and any other pane in the Edge browser (which is still called "Project Spartan" in this build).
The Windows 10 for printing to PDF (now called "Microsoft Print to PDF) is available for testing in this build, as well.
Microsoft is not planning to make the previous Windows 10 Desktop test build (No. 10122) to the Slow ring due to a bug that affects users upgrading from Windows 7 and Windows 8.1, officials reconfirmed in today's post about the new build.
Microsoft is continuing to progress toward launching Windows 10 for PCs "this summer" -- specifically, late July, as one of its partners previously leaked.