The latest version of calibre is 6.16.

The version in the repositories is 6.11.0-1.0 and unfortunately will no longer start.

[keith@Arch32 ~]$ calibre
Failed to import PyQt module: PyQt6.QtNetwork with error: /usr/lib/python3.10/site-packages/PyQt6/QtNetwork.abi3.so: undefined symbol: _ZN16QNetworkDatagram7destroyEP23QNetworkDatagramPrivate, version Qt_6
Traceback (most recent call last):
  File "/usr/bin/calibre", line 21, in <module>
    sys.exit(calibre())
  File "/usr/lib/calibre/calibre/gui_launch.py", line 72, in calibre
    from calibre.gui2.main import main
  File "/usr/lib/calibre/calibre/gui2/__init__.py", line 13, in <module>
    from qt.core import (
ImportError: cannot import name 'QNetworkProxyFactory' from 'qt.core' (/usr/lib/calibre/qt/core.py)
[keith@Arch32 ~]$ pacman -Qi calibre
Name            : calibre
Version         : 6.11.0-1.0
Description     : Ebook management application
Architecture    : pentium4
URL             : https://calibre-ebook.com
Licenses        : GPL3
Groups          : None
Provides        : None
Depends On      : hunspell  hyphen  icu  jxrlib  libmtp  libstemmer  libusb  libwmf  mathjax  mtdev  optipng  podofo
                  python-apsw  python-beautifulsoup4  python-cchardet  python-css-parser  python-cssselect  python-dateutil
                  python-dnspython  python-feedparser  python-html2text  python-html5-parser  python-jeepney  python-lxml
                  python-markdown  python-mechanize  python-msgpack  python-netifaces  python-pdftotext  python-pillow
                  python-psutil  python-py7zr  python-pychm  python-pycryptodome  python-pygments  python-pyqt6
                  python-pyqt6-webengine  python-regex  python-unrardll  python-zeroconf  qt6-imageformats  qt6-svg
                  qt6-webengine  ttf-liberation  uchardet  udisks2
Optional Deps   : poppler: required for converting pdf to html [installed]
                  speech-dispatcher: TTS support in the viewer
Required By     : None
Optional For    : None
Conflicts With  : calibre-common  calibre-python3
Replaces        : calibre-common  calibre-python3
Installed Size  : 91.69 MiB
Packager        : Andreas Baumann <mail@andreasbaumann.cc>
Build Date      : Thu 12 Jan 2023 05:31:50 GMT
Install Date    : Tue 24 Jan 2023 10:15:48 GMT
Install Reason  : Explicitly installed
Install Script  : No
Validated By    : Signature

[keith@Arch32 ~]$