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Following the decision by the board to change focus at Opera Software towards quarterly profits, co-founder Jon von Tetzchner left the company. Opera then announced that it would switch from the Presto layout engine that it had developed to the WebKit rendering engine, also used by Google Chromium project. It later followed Chrome again when it changed to the Blink rendering engine. Around the same time, the Opera community website My Opera was closed down. The new Opera left many of its users disgruntled.