It has been undergoing an upgrade since 7 June 2006.

Lake Street has undergone a major upgrade, its first in half a century.

The commercial centre underwent a major upgrade in the early 1980s.

Both facilities will undergo major upgrades after spring training in 2010.

The stage itself has undergone massive upgrades over the years.

The telescope was completed in 1970 and underwent a major upgrade between 1995-2000.

Since then the complex has undergone significant expansion and upgrades.

Between 1529 and 1559 the castle underwent an upgrade by French engineers.

Since the 1980s, many of the state's highways have undergone regular upgrades.

Just prior to the 2008 football season the stadium underwent a complete upgrade to the main sound system,.