Undetectable 2.49.0 was released on August 4, 2026. Its changelog has one entry: the browser engine was updated to Chromium 151.
Version 2.49.1 followed the same day with two fixes: proxy issues in the old proxy system and slow proxy checks.
Undetectable updates its browser engine roughly once a month. Since April, the releases have been: Chromium 147 in 2.45.0 (April 14), 148 in 2.46.0 (May 13), 149 in 2.47.0 (June 9), 150 in 2.48.0 (July 7), and 151 in 2.49.0. The developers say they update the engine frequently because antifraud systems at Facebook, Google, and crypto exchanges notice when a browser version lags behind what most people use.
There is no dedicated blog article for this release, just a changelog entry and a post on the Telegram channel. Users only need to update the app. Anyone experiencing proxy issues in the old proxy system or slow proxy checks needs 2.49.1 specifically.
