Version in base suite: 2.2.1+dfsg1-1
Version in overlay suite: 2.2.1+dfsg1-1+deb13u1

Base version: lwip_2.2.1+dfsg1-1
Target version: lwip_2.2.1+dfsg1-1+deb13u1
Base files: liblwip-doc_2.2.1+dfsg1-1_all.deb
Target files: liblwip-doc_2.2.1+dfsg1-1+deb13u1_all.deb

File lists identical on package level (after any substitutions)

Control files: lines which differ (wdiff format)
------------------------------------------------
Installed-Size: [-11111-] {+11112+}
Version: [-2.2.1+dfsg1-1-] {+2.2.1+dfsg1-1+deb13u1+}