@opencv-alalek could you tune ABI checker configuration.

It would be great to add this parameter to dis_flow.cpp

    float getVariationalRefinementEpsilon() const CV_OVERRIDE { return variational_refinement_epsilon; }
    void setVariationalRefinementEpsilon(float val) CV_OVERRIDE { variational_refinement_epsilon = val; }

and

variational_refinement_processors[i]->setEpsilon(variational_refinement_epsilon);

and in tracking.hpp

    /** @brief Charbonier Robust metric term
    @see setVariationalRefinementEpsilon */
    CV_WRAP virtual float getVariationalRefinementEpsilon() const = 0;
    /** @copybrief getVariationalRefinementEpsilon @see getVariationalRefinementEpsilon  */
    CV_WRAP virtual void setVariationalRefinementEpsilon(float val) = 0;

Or may be it is better to create an other issue ?

It would be great to add this parameter to dis_flow.cpp

    float getVariationalRefinementEpsilon() const CV_OVERRIDE { return variational_refinement_epsilon; }
    void setVariationalRefinementEpsilon(float val) CV_OVERRIDE { variational_refinement_epsilon = val; }

and

variational_refinement_processors[i]->setEpsilon(variational_refinement_epsilon);

and in tracking.hpp

    /** @brief Charbonier Robust metric term
    @see setVariationalRefinementEpsilon */
    CV_WRAP virtual float getVariationalRefinementEpsilon() const = 0;
    /** @copybrief getVariationalRefinementEpsilon @see getVariationalRefinementEpsilon  */
    CV_WRAP virtual void setVariationalRefinementEpsilon(float val) = 0;

Or may be it is better to create an other issue ?

Perhaps there's no need to open a new issue; I have already attempted to make the necessary modifications.

I apologize as this is my first attempt to submit a pr to opencv, and I lack some experience. Why this workflow is stuck? How should I proceed to resolve it?