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Differences between 2.4.9 and 2.4.11

I have an application that is using a GFTT detector and after I have done an OpenCV update form 2.4.9 to 2.4.11, the behaviour is changed. There are more features after matching. So I am wondering if there is a bug fixed or some improvement in feature detection or descriptor matching?

Differences between 2.4.9 and 2.4.11

I have an application that is using a GFTT detector and after I have done an OpenCV update form 2.4.9 to 2.4.11, the behaviour is changed. There are more features after matching. So I am wondering if there is a bug fixed or some improvement in feature detection or descriptor matching?matching, or maybe in Otsu threshold?