Lintian tag information: possible-new-upstream-release-without-new-version (type: warning)

Description (from lintian-explain-tags)

The most recent changelog entry contains an entry that appears to say this
is a new upstream release (a comment similar to "new upstream release,"
possibly with a word between "upstream" and "release"), but the upstream
portion of the package version number didn't change. This may indicate
that the package version was not updated properly in debian/changelog.

Visibility: warning
Show-Always: no
Check: debian/changelog

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