Here's the new set of countries the Steam version allows.
Bulgaria, Croatia, Cyprus, Estonia, Iceland, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Romania, Slovenia, Aland Islands, American Samoa, Anguilla, Argentina, Australia, Austria, Bermuda, Brazil, British Indian Ocean Territory, Canada, Cayman Islands, Chile, Christmas Island, Cocos (Keeling) Islands, Colombia, Czech Republic, Denmark, Falkland Islands (Malvinas), Faroe Islands, Finland, France, French Guiana, French Polynesia, Germany, Gibraltar, Greece, Guadeloupe, Guam, Guernsey, Hong Kong, Hungary, India, Ireland, Isle of Man, Israel, Italy, Jersey, Martinique, Mayotte, Mexico, Montserrat, New Caledonia, New Zealand, Norfolk Island, Northern Mariana Islands, Norway, Poland, Portugal, Puerto Rico, Reunion, Russian Federation, Singapore, Slovakia, South Africa, South Georgia and the South Sandwich Islands, Spain, Saint Pierre and Miquelon, Svalbard and Jan Mayen, Sweden, Switzerland, Taiwan, Tokelau, Turkey, Turks and Caicos Islands, Great Britain, United States, United States Minor Outlying Islands, British Virgin Islands, U.S. Virgin Islands, Wallis and Futuna
You can see the change here
Thanks to all involved in the change. Good news for once. Hope we get more good news in the near future.
Also thanks to @Zodiac862 for bringing it to attention.