The Green Line Extension contractor (GLX Constructors) still is working on the GLX punch list, including accessibility work. So the MBTA has yet to turn over operational control of the Community Path Extension to the City of Somerville. The latest update as of April 27, 2023 has that happening in "mid-June." (Source: StreetsblogMASS)

UPDATE (5.4.2023): Rep. Mike Connolly met with the MBTA and tweeted details on the outstanding punch list items for the CPX. You can read these details in a recap of his Twitter thread here.