Hi,
Firstly, I want to thank Kovid Goyal and others for creating this excellent and brilliant software. I use it every day and I love it.
I upgraded to version 8 from day one. Occasionally, I experienced several crashes, but they were tolerable. However, since I installed Calibre 8.10.0 on my Mac mini, the software has been crashing frequently. It crashed every time I made a change (e.g., pressing a button, connecting my e-reader).
I conducted research but found no similar reports, leading me to believe this error might be unique to my scenario. Therefore, I reinstalled previous versions: 8.9.0, 8.8.0, 8.7.0, and 8.6.0, but to no avail. Although those versions had been stable before, they were not now.
In a final attempt to find a stable version, I decided to revert to the previous major release—version 7.26.0. To my surprise, it is working now. There have been no crashes since then.
Here is the log by running '/Applications/calibre.app/Contents/MacOS/calibre-debug -g' in v7.26.0:
Code:
calibre 7.26 embedded-python: True
macOS-15.6.1-arm64-arm-64bit Darwin ('64bit', '')
('Darwin', '24.6.0', 'Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:30 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6020')
Python 3.11.5
OSX: ('15.6.1', ('', '', ''), 'arm64')
Interface language: None
EXE path: /Applications/calibre.app/Contents/MacOS/calibre-debug
Successfully initialized third party plugins: Apple Books covers (1, 1, 0) && Barnes & Noble (1, 5, 7) && Count Pages (1, 13, 7) && Favourites Menu (1, 3, 1) && FictionDB (1, 4, 2) && KOReader Sync (0, 7, 2) && Kindle hi-res covers (0, 5, 1) && Kobo Metadata (1, 12, 0) && Kobo Utilities (2, 24, 2) && Open With (1, 8, 4) && Quality Check (1, 14, 2) && Search The Internet (1, 11, 3) && SmartEject (2, 6, 0) && View Manager (1, 10, 3)
QPA platform: cocoa
devicePixelRatio: 2.0
logicalDpi: 72.0 x 72.0
physicalDpi: 93.0000013967199 x 91.50000137419215
Using calibre Qt style: False
And in v8.10.0:
Code:
calibre 8.10 embedded-python: True
macOS-15.6.1-arm64-arm-64bit Darwin ('64bit', '')
('Darwin', '24.6.0', 'Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:30 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6020')
Python 3.11.12
OSX: ('15.6.1', ('', '', ''), 'arm64')
Interface language: None
EXE path: /Applications/calibre.app/Contents/MacOS/calibre-debug
Successfully initialized third party plugins: Apple Books covers (1, 1, 0) && Barnes & Noble (1, 5, 7) && Count Pages (1, 13, 7) && Favourites Menu (1, 3, 1) && FictionDB (1, 4, 2) && KOReader Sync (0, 7, 2) && Kindle hi-res covers (0, 5, 1) && Kobo Metadata (1, 12, 0) && Kobo Utilities (2, 24, 2) && Open With (1, 8, 4) && Quality Check (1, 14, 2) && Search The Internet (1, 11, 3) && SmartEject (2, 6, 0) && View Manager (1, 10, 3)
QPA platform: cocoa
devicePixelRatio: 2.0
logicalDpi: 72.0 x 72.0
physicalDpi: 93.0000013967199 x 91.50000137419215
Using calibre Qt style: False
If you need anything else, please let me know.
