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: Chromium (May 1, 2026), Platform 30.4 (Apr 28, 2026)
1,400+ portable packages, 1.2 billion downloads
PortableApps.com is operating at a loss. Please donate if you can!
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.