Microsoft today announced the release of new Windows 10 builds for PC and mobile for people participating in the fast ring of the Windows Insider Program.

Build 14366 for PC, and build 14364 for mobile, follows build 14361, which became available last week.

With today’s releases, Microsoft is kicking off its previously announced Windows 10 Anniversary Update June Bug Bash, Dona Sarkar, a software engineer in Microsoft’s Windows and Devices Group, wrote in a blog post. (Historically, Gabe Aul has been the person to tell the world what’s new with Windows 10 Insider builds, but he stepped down recently.) And now, Microsoft is focusing on getting the much-awaited Windows 10 Anniversary Update out the door next month, which explains why there aren’t a lot of new features coming out in this build.

On the PC side, the big new thing is that you can now release Office Online in Edge — Microsoft’s standard issue browser for Windows 10 — even if you don’t have the Office apps installed. That’s because there’s a new Office Online Edge extension, which lets you view, edit, and create files inside the browser. “You can also quickly access your recent files, thanks to integration with OneDrive and OneDrive for Business,” Sarkar wrote.

The Recently Added section will now show up above the Most Used section in the Start menu with this build. And new apps will stay in that section for seven days now.

When you search Cortana and there’s a .docx file you’re interested in, you’ll be able to access a new context menu option that lets you go right to the folder where that file is located.

Naturally, Microsoft has fixed several things about Windows 10 with these new builds. For instance, an updated Windows Store comes with better performance. And, as usual, there are known issues. For instance, the Desktop App Converter Preview (Project Centennial) isn’t working in this build. See Sarkar’s blog post for the full rundown.

If you want to try the new previews but you’re not a Windows Insider, you can sign up here.