V12 gives the wrong integral

Integrate[q2^eps Log(q2+m2) (q2+m2)^-1,{q2,0,Infinity}]

gives

0, if -1<Re[eps]<0 && Re[m2]>0

which is wrong.

If ones adds

Assumptions -> {m2 > 0, -1 < eps < 0}

then it is correct.

Wrong_Integral.nb (7.23 KB)

Yes It’s a bug. I send to Wolfram Support.

Regards M.I.

Thanks Mariusz. I hope they may fix it quickly.