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: BriskPlayer (Jun 08, 2026), Platform 30.4.1 (May 30, 2026)
1,400+ portable packages, 1.2 billion downloads
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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.