The showframe package is contained in both .../tex/latex/showframe and .../tex/latex/eso-pic. The former is version 0.1f from 2002, the latter version 0.1j from 2020. The CTAN entry makes it seem like it should be bundled with eso-pic and the standalone package removed.
The showframe package is contained in both
.../tex/latex/showframe
and.../tex/latex/eso-pic
. The former is version 0.1f from 2002, the latter version 0.1j from 2020. The CTAN entry makes it seem like it should be bundled witheso-pic
and the standalone package removed.