In 2020, Simplified Chinese logo of zhwiki was changed to a new version (see T256839). But the file in Wikimedia Commons was not updated.
In this change, zhwiki-hans.png was recompressed and overrided by the old file on Commons.
I think the file in Commons should be updated to the new version and recompress new PNG logos for zhwiki.
- Upload File:Wikipedia-logo-v2-zh-hans-expected.svg to File:Wikipedia-logo-v2-zh-hans.svg as a new version.
- Redirect File:Wikipedia-logo-v2-zh-hans-expected.svg to File:Wikipedia-logo-v2-zh-hans.svg
- Update these static file:
What's more, due to the Desktop improvement, there will be new logos in Vector 2022 skin. However, File:Wikipedia-wordmark-zh-hans.svg and File:Wikipedia-tagline-zh-hans.svg are derived from old logos, so these are also expected: