See also the list of Highway Data Updates.

December 2011

• International European Roads: Added Bulgaria and Kazakhstan.
• Nebraska State Highways: Added.

November 2011

• International European Roads: Added Belarus, Kyrgyzstan, Portugal, Russia, and Tajikistan.
• Kosovo Motorways: added.

October 2011

• International European Roads: added Moldova, Romania, Turkmenistan, and Uzbekistan.
• Jamaica Motorways: added.

July 2011

• International European Roads: added Armenia, Azerbaijan, and Greece.

June 2011

• International European Roads: added Georgia and Switzerland.

May 2011

• International European Roads: added Bosnia and Herzegovina, Finland, Lithuania, Macedonia, Montenegro, and Turkey.

April 2011

• Albania Motorways (Autostrada): added.
• International European Roads: added Netherlands, Norway.

March 2011

• Hawaii State Highways: added.
• International European Roads: added Italy.

February 2011

• International European Roads: added Croatia, Poland, and Slovakia.

January 2011

• International European Roads: added the Czech Republic, Estonia, France, Kosovo, Latvia, Serbia, Spain, and Sweden.
• Spanish National Motorways (Autovías/Autopistas): added.

December 2010

• International European Roads: added Austria, Belgium, Denmark, Germany, Hungary, Ireland, Luxembourg, Slovenia, and the United Kingdom.
• New Brunswick Provincial Highways: added.
• New Jersey State Highways: added.

October 2010

• Italy Select Named Motorways (Autostrade): added.
• Spain Select Autonomous Community Motorways (Autovías/Autopistas): added.

September 2010

• Belgium Motorways (Autosnelwegen): added.
• France Motorways (Autoroutes): added.
• Luxembourg Expressways (Schnellstrossen): added.
• Martinique Motorways (Autoroutes): added.
• Mexico Federal Expressways (Autopistas): added.
• Mexico State Expressways (Autopistas): added.

August 2010

• Massachusetts State Highways: added.

July 2010

• Illinois State Highways: added.
• Maryland State Highways: added.

June 2010

• Kansas State Highways: added.
• Switzerland Motoways (Autobahnen): added.

May 2010

• Delaware State Highways: added.
• New Hampshire State Highways: added.
• Rhode Island State Highways: added.
• US Select Numbered State Freeways: temporarily added.
• US Select Named Freeways: added first release.

April 2010

• Connecticut State Highways: added.
• Italy Motorways (Autostrade): added.
• Missouri State Highways: added.
• Pennsylvania State Highways: added.

February 2010

• Greece Motorways (Aftokinitodromi): added.
• Minnesota State Highways: added.
• Ontario King's Highways: added.
• Turkey Motorways (Otoyolları): added.

January 2010

• Bulgaria Motorways (Avtomagistrali): added.
• Cyprus Motorways (Aftokinitodromi): added.
• Luxembourg Motorways (Autobunnen): added.
• Netherlands Motorways (Autosnelwegen): added.
• Ohio State Highways: added.
• Portugal Motorways (Auto-estradas): added.
• Romania Motorways (Autostrăzi): added.
• Slovakia Expressways (Rýchlostné Cesty): added.

December 2009

• Iowa State Highways system: added.
• Maine State Highways system: added.
• New York State Highways system: added.
• South Dakota State Highways system: added.
• Wisconsin State Highways system: added.
• Bosnia and Herzegovina Motorways (Autoputevi) system: added.
• Croatia Motorways (Autoceste) system: added.
• Poland Motorways (Autostrady) system: added.
• Poland Expressways (Drogi Ekspresowe) system: added.
• Slovenia Motorways (Avtoceste) system: added.
• Slovenia Expressways (Hitre Ceste) system: added.

November 2009

• Austria Motorways (Autobahnen) system: added.
• Austria Expressways (Schnellstraßen) system: added.
• Czech Republic Motorways (Dálnice) system: added.
• Czech Republic Expressways (Rychlostní silnice): added.
• District of Columbia District Highways system: added.
• Hungary Motorways (Autópályák) system: added.
• Michigan State Highways system: added.
• North Carolina State Highways system: added.
• Slovakia Motorways (Dial'nice) system: added.

October 2009

• Oregon State Routes system: added.
• Northwest Territorial Highways system: added.
• Yukon Territorial Highways system: added.
• Germany Motorways (Autobahnen): added.

September 2009

• Great Britain Motorways system: added.

August 2009

• Ireland Motorways system: added.
• Northern Ireland Motorways system: added.
• Traveler statistics pages: upgraded.
• Clinched highway maps: upgraded.

June 2009

• US Future Interstate Highways system: added.
• Trans-Canada Highway system: added.

March 2009

• Primary US Highways system: added.
• Auxiliary US Highways system: added.

November 2008

• Ontario Freeway system (400s): added.
• Quebec Autoroutes system: added.
• Nova Scotia Freeway system (100s): added.

March 2006

• US Business Interstate Highway system: added.

January 2006

• US Interstate Highway system: added.

2005

• Clinched Highway Mapping project and site began.