In 1985, a new version of the 2600 was released (although it had been planned for release two years earlier). The new redesigned version of the 2600, unofficially referred to as the 2600 Jr., featured a smaller cost-reduced form factor with a modernized Atari 7800-like appearance. The redesigned 2600 was advertised as a budget gaming system (under $50) that had the ability to run a large collection of classic games. With its introduction came a resurgence in software development both from Atari Corp. and from a few third parties (including Activision, Absolute Entertainment, Froggo, Epyx, and Exus). The Atari 2600 continued to sell in the USA and Europe until 1991, and in Asia until the early 1990s. Its final Atari-licensed release was KLAX in 1990. Over its lifetime, an estimated 30 million units were shipped, and its video game library reportedly numbers more than 900 titles with commercial games being released until 1991. In Brazil, the console became extremely popular in the mid-1980s. The Atari 2600 was officially retired by Atari Corp. on January 1, 1992, making it the longest-lived home video game console (14 years, 2 months) in video game history.
Source: Wikipedia, "Atari 2600", available under the CC-BY-SA License.