Today, Dona Sarkar head of insider team has posted that, there will be no new build release this week because of some upgrades. Windows Insiders have to wait for next week to get new Redstone builds. Meanwhile, you can check about build 14922.
Dona Sarkar Posted,
We are performing some upgrades this week to our services that are used to approve and monitor builds from the Development Branch to our Windows Insiders. Once the upgrade is complete, just as we flight the OS through the rings, we will be flighting the service upgrades through the internal rings first. We won’t have any new builds from the Development Branch for you this week, but plan to return to schedule next week.
As part of this upgrade, any changes to the Windows Insider ring settings via Settings > Update & Security > Windows Insider Program will not take effect until the service upgrade has finished. If you are setting up a new device or changing rings, your device will not receive new builds available to that ring until the upgrade is complete.