https://wccftech.com/third-cumulative-update-windows-10-april-2018-update/

Microsoft released Windows 10 April 2018 Update just a little over a month ago. In the last few weeks, the company has released two cumulative updates to this year’s first Windows 10 feature update. Today, it is rolling out another cumulative update to Windows 10 April 2018 Update.

Following the release of 17134.48 and 17134.81 last month, the first cumulative update for the month of June is now live. You can download Windows 10 April 2018 Update build 17134.83 (KB4338548) manually or through settings.