OpenSlide 4.0.1 has been released. OpenSlide 3.4.1 is now over eleven years old.
Notable changes since 4.0.0 that are relevant to packaging: - Added library dependency on Zstandard - Increased minimum libdicom version to 1.3 - Dropped dependency on GDK-PixBuf - Fixed arbitrary memory write with crafted Ventana BIF file (CVE-2026-48977) - Fixed return of uninitialized pixels with libtiff 4.7.1 (GHSA-f734-jv98-5677, CVE requested) Both vulnerabilities also affect OpenSlide 3.4.1.
