V1.09  2020/8/6
1. Improve stability

V1.08  2020/4/3
Fix the err problem when using F1.6 aperture in TV mode

V1.06  2018/12/27
1.Repair the problem that 7D II camera can't focus automatically
2.Other improvements

V1.05   2018/12/11
1.Repair the problem that EOS M6 camera can't focus automatically
2.Other improvements

V1.04   2018/10/13
1.Optimizing the stability of video recording

V1.03   2018/6/27

1. Optimize AF Performance

2. Fix the inaccurate exposure, when the lens is used on the 80D/6D II camera
3.Other improvements

V1.01   2018/6/22
1. Improve the compatibility of SLR camera;

2. Improve the compatibility of eos-m camera;

3. Fix some camera focus less problem;

4. Other improvements.