Versions of libraries and dev files do not match

[ud4fd@ua4.ru]

Please update the bullseye distribution packages - versions of libraries 
and dev files do not match

apt-cache show libqt6serialport6-dev
Package: libqt6serialport6-dev
Source: qt6-serialport
Version: 6.3.1-2~bpo11+1
Architecture: amd64
Depends: libqt6serialport6 (= 6.3.1-2~bpo11+1), qt6-base-dev
Description-en: Qt 6 serial port development files
Description-md5: 907980f4bc30a8347bc0c7fb2958e0cb
Multi-Arch: same
Homepage: https://www.qt.io/developers/
Section: libdevel
Priority: optional
Filename: 
pool/main/q/qt6-serialport/libqt6serialport6-dev_6.3.1-2~bpo11+1_amd64.deb
Size: 15120
SHA256: 9872e537d5caad3b57e34c95e56fea8f6598c351a8ca4cc88ff422db48a1c01a



apt-cache show libqt6serialport6
Package: libqt6serialport6
Source: qt6-serialport
Version: 6.4.2-2~bpo11+1
Architecture: amd64
Depends: libc6 (>= 2.14), libqt6core6 (>= 6.4.2+dfsg~), libstdc++6 (>= 
5), libudev1 (>= 183), qt6-base-abi (= 6.4.2)
Description-en: Qt 6 serial port support library
 This package contains the library for Qt 6 Serial ports.
Description-md5: ddc17c7527f4cef20d6d618886833627
Multi-Arch: same
Homepage: https://www.qt.io/developers/
Section: libs
Priority: optional
Filename: 
pool/main/q/qt6-serialport/libqt6serialport6_6.4.2-2~bpo11+1_amd64.deb
Size: 38932
SHA256: eac7ea4eea2799d21e8bc25c3d238cf9b7eac80c9b940deb659c7df41d9cbf9d