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Some time ago I updated my system to the development release of Ubuntu using these instructions:

"If you would like to install and test the latest development version of Ubuntu before it is released, press Alt+F2, type update-manager -c -d into the box and click Run. If a development release is available, an Update button will appear in the Update Manager. Click it to upgrade to the development version."

However, now my machine is always trying to update to the latest development packages causing randomness that I can't afford. Could someone please tell me how to have Ubuntu STOP updating to the development release?

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up vote 2 down vote accepted

Open your Update manager then click at Settings . This action will leads to you a new Window . in that at Updates TAB look at the last option , i mean At Notify me of a New Ubuntu Version and set it to Normal release . At Notify me of a New Ubuntu Version

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