There is no new Windows 10 Creators Update Insider Build tomorrow. Dona Sarkar has tweeted that Windows Insiders should not expect a new build tomorrow, citing the just completed bug bash as a reason for it.
#WindowsInsiders: We won't be releasing a build on 2/20 PST. We will be looking at the SH data from bug bash bug fixes & choosing a build.
— D:ona @ #MSBuild (@donasarkar) February 19, 2017
The last Windows 10 Build issued to insiders came two weeks ago, before the Insider Bug Bash. Microsoft has had tons of feedback from users on what bugs are left to be squashed, and is working on incorporating the results from that data into the next build.
The Windows 10 Creators Update has reached feature completion, and Microsoft’s next builds are expected to focused on smoothing out bugs and preparing the update for general users.