I have received two suggestions:
1.In current version, we got
project.manifest and didn't have chance to modify it.so developers hopes that they could pass some parameters when sending requests.
2.For version comparing, there are two options:
1) Set version format,such as aa.bb.cc, aa ->major version number, bb->sub version number, cc->sub sub version number.By this format, we could compare version conveniently
2) Offer a callback function,let developers can customize the comparative method by themselves.If developers don't implement this callback, comparing the version by default method as 1) descripted.