Description
The main.go version fallback was the literal 1.5.1, which outlived the release it named and misreported the version of any build not made by the official pipeline.
Final Summary
Fixed in 9790544: fallback changed to dev; official builds inject the real version via ldflags. main_test.go was added in the same commit. Release numbers must not reappear in Go source — release-please owns versioning.