This build introduced a new server farm in the US, which increased browsing speed for Western users by up to 30%.
The primary reason this specific version is still discussed is its technology. Instead of the phone rendering a webpage directly, Opera’s remote servers did the heavy lifting: The server requested the webpage. It stripped out heavy scripts and unnecessary CSS. It compressed images by shaving off pixels. opera-mini-4.2.21992-advanced-en.jar
The final result—often reduced by up to of its original size—was sent to the phone in a lightweight format called OBML (Opera Binary Markup Language). Opera Mini speeds up: Opera Mini 4.2 is released today This build introduced a new server farm in
It added "skins"—predefined color schemes—that allowed users to move away from the standard red-and-white interface. opera-mini-4.2.21992-advanced-en.jar