The SHA-1 of mainData between two builds of same project are different

Unity 5.2.0f3, same project without any change, the SHA-1 of mainData (even the file size) between two builds are different. Could anybody tell me how to make it fixed? Thanks very much!

If the timestamp of the build is put into the file, then the SHA will allways be different every time you do a build

Thanks for your reply ^^! There are about 35k different bytes between two builds, and sometimes even the file sizes are not same. I think it isn’t just only the timestamp’s matter.

Check the Unity Roadmap - Unity 5.4 due March 2016 has ‘Deploy: Binary Reproducibility’ listed as a feature.

I got it! Thank you very much!