I see this warning whenever I run a scan with ClamWin Portable:
WARNING: Local version: 0.98.4.1 Recommended version: 0.98.4
New: InnoUnpacker (Sep 17, 2025), Platform 30.1 (Sep 27, 2025)
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This is a known problem with Clamwin. This message shows up because the ClamWin is at version 0.98.4.1, but ClamAV, which ClamWin uses as its scanning engine, is only at 0.98.4
You won't be stopped from scanning, it's just an annoyance.