Quote:
Originally Posted by kovidgoyal
Yes calibre 4.10 upgraded the bundled Qt to 5.14.1 to fix some bugs in the webengine pointer events support. It's quite possible it has issues with older graphics cards/drivers. It's annoying that something as simple as rendering HTML accurately requires up-to-date graphics drivers but that is the world we live in with the crazy browser makers endlessly making HTML more and more complex.
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A big part of the reason I do my Sigil development on Arch Linux is because I can easily build against the latest (and not always greatest) versions of Qt/Python/Etc without having to constantly build them from scratch myself. It works like an early warning system.
It's crazy how fast things are moving. Python 3.5 marked the end of support for XP, and I believe I saw that 3.8.x will be the last that will support Windows 7. Meanwhile Python 3.4 has already reached end of life.