For the Starlane event to display properly in the sitrep, the following spreadsheet changes need to be made:

Add to Sitrep.txt, table ReportType:
NewStarlane	New	Event	Reg	ICO_SitRep_ExplorationComplete	STARLN01	STARLN01	STARLN01

Add to wsSitrep.txt, at end of file:
\*STARLN01 Astronomers have located a previously undiscovered Starlane connecting the %Value1% and %Value2% systems.