Merging packages is straightforward as well. The following two cases are examples of merging packages:
One package absorbs another package at the renamed version.
Suppose package A@2 must absorb package B@3. To do this, rename package B to package A@2. Remember to include an optional dependency in A@2 on B@3, unless both packages are incorporated so that they update together as described above. A user upgrading B to B@3 now gets A installed since A has absorbed B.
Two packages are renamed to the same new package name.
In this case, rename both packages to the name of the new merged package, including two optional dependencies on the old packages in the new one if they are not otherwise constrained.