mod=example.com/basic/v2
base=example.com/basic@v1.1.0
version=v2.0.1
release=v2.0.1
proxyVersions=example.com/basic@v1.1.0
-- want --
# example.com/basic/a
## incompatible changes
A2: removed

# example.com/basic/b
## incompatible changes
package removed

# summary
v2.0.1 is a valid semantic version for this release.