Today Microsoft released Windows 10 Build 14366 for slow ring insiders. The build was available for fast ring insiders earlier this week.
Windows insider chief Dona Sarkar on twitter has made this announcement.
The build consists some new features like support for Office online in Microsoft Edge. Along with this build also packs with bunch of fixes and improvements. Click on following link to know more.

Windows 10 Build 14366 Change log.
Microsoft Edge change log
Language packs, ISO images.