6 January 2025:
O-Train line 2 is extended from Greenboro to Limebank (4 new stations)
and line 4 opens between South Keys and Airport (2 new stations).
14 September 2019:
O-Train Confederation line opens between Tunney's Pasture and Blair (13 stations).
15 October 2001:
O-Train Trillium line opens between Bayview and Greenboro (5 stations).
