I have trunk and a release branch. If I fixed a bug in release branch, I definitely should integrate the fix back to trunk. However, I didn't find a command dedicated to integrate such a single change list; did I miss something? To integrate changelist 100, for example, you'd use: p4 merge //releasebranch/...@=100 //trunk/... p4 resolve p4 submit (If you have an older Perforce server you'll have to use 'integ' instead of 'merge'.) Note that '@=100' means the same thing as '@100,100' in this context. 来源: https://stackoverflow.com/questions/12106321/perforce-how-to-integrate-a-change-to-another