No it is not a frickin patch (which happens every 2-4 months and downtime is somewhat justified), it's a NINJA patch. Blizzard could start ninja-patching every fricking day and we would have the bot always down.
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Last time I checked a "patch" and a "ninja patch" were the same thing. Only difference is one we are given the heads up on and guess what when we are given the heads up we are still down for the same amount of time as a ninja patch.