TfL Rail: Trains in Havering are expected to run as normal. Outside of the area there will be some disruption.
Trains will not stop at Maryland, Forest Gate or Manor Park. This is to allow for Crossrail to test the trains through the tunnels, transitioning between the different signalling systems.
Other disruptions are in place across the Central and District Lines.
Full details on any TfL disruption can be found here