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KevinH · 02-09-2026, 02:11 PM

Hi All,

To get the very latest critical security and bug fixes, we have made major updates to Sigil to use the just released Qt6.10.2 and Python 3.14.2 and to use the very latest toolchains to make our builds. Sigil 2.7.5 includes all the accepted new features and improvements asked for here on Mobilreread as well as many, many bug fixes.

Since automated functional and regression testing a project as big and varied as Sigil and its plugins is hard to do, we would very much like your help in testing a beta of our upcoming release Sigil-2.7.5.

Since major changes to Python have been made, please also test all of your plugins that use our embedded python interpreter to verify they continue to work with Python 3.14.2.

Please post any issues you may find in this thread or in our github Issues.

Please note, the new minimum Mac OS version for running and using Sigil is now MacOS 10.13 (High Sierra) as it is the oldest MacOS version still receiving security fixes from Apple and is the oldest supported by Qt 6.10.

I have posted CI builds of the beta to my personal repo here:

https://github.com/kevinhendricks/Bu...nMac/releases/

Look for these Beta builds ...

Sigil-2.7.5-beta-x86_64.AppImage
Sigil-2.7.5-Windows-x64-Setup.exe
Sigil.app-2.7.5-beta-Mac-arm64.tar.xz
Sigil.app-2.7.5-beta-Mac-x86_64.tar.xz

Note: these MacOS builds are fully signed but NOT notarized by Apple as we only use notarization in our final official release process. So if you run into difficulties try removing the Apple quarantine extended attribute before unpacking and running the beta. You should only do this for truly trusted software.

To remove the quarantine extended attribute, use the following:

Place the downloaded file on your Desktop (move it out of Downloads) and run Terminal.app and enter the following commands:

Code:

    cd ~/Desktop 
    xattr -d com.apple.quarantine ./Sigil.app-2.7.5-beta-Mac-x86_64.tar.xz

or 

    cd ~/Desktop
    xattr -d com.apple.quarantine ./Sigil.app-2.7.5-beta-Mac-arm64.tar.xz

Then try unpacking it and running the beta.

Windows users: though I haven't run into it yet, it IS conceivable that you might need to update your Microsoft Visual C++ Redistributable runtimes. Sigil is now being built with Visual Studio 2026. Those using Windows 11 should be able to keep these up to date with the normal Windows Update service anyway.

Linux AppImage Users: don't forget to mark the .AppImage file as executable after downloading.

02-09-2026, 02:11 PM	#1
KevinH Sigil Developer Posts: 9,346 Karma: 6686152 Join Date: Nov 2009 Device: many	Please Help Test Sigil 2.7.5 Beta Hi All, To get the very latest critical security and bug fixes, we have made major updates to Sigil to use the just released Qt6.10.2 and Python 3.14.2 and to use the very latest toolchains to make our builds. Sigil 2.7.5 includes all the accepted new features and improvements asked for here on Mobilreread as well as many, many bug fixes. Since automated functional and regression testing a project as big and varied as Sigil and its plugins is hard to do, we would very much like your help in testing a beta of our upcoming release Sigil-2.7.5. Since major changes to Python have been made, please also test all of your plugins that use our embedded python interpreter to verify they continue to work with Python 3.14.2. Please post any issues you may find in this thread or in our github Issues. Please note, the new minimum Mac OS version for running and using Sigil is now MacOS 10.13 (High Sierra) as it is the oldest MacOS version still receiving security fixes from Apple and is the oldest supported by Qt 6.10. I have posted CI builds of the beta to my personal repo here: https://github.com/kevinhendricks/Bu...nMac/releases/ Look for these Beta builds ... Sigil-2.7.5-beta-x86_64.AppImage Sigil-2.7.5-Windows-x64-Setup.exe Sigil.app-2.7.5-beta-Mac-arm64.tar.xz Sigil.app-2.7.5-beta-Mac-x86_64.tar.xz Note: these MacOS builds are fully signed but NOT notarized by Apple as we only use notarization in our final official release process. So if you run into difficulties try removing the Apple quarantine extended attribute before unpacking and running the beta. You should only do this for truly trusted software. To remove the quarantine extended attribute, use the following: Place the downloaded file on your Desktop (move it out of Downloads) and run Terminal.app and enter the following commands: Code: cd ~/Desktop xattr -d com.apple.quarantine ./Sigil.app-2.7.5-beta-Mac-x86_64.tar.xz or cd ~/Desktop xattr -d com.apple.quarantine ./Sigil.app-2.7.5-beta-Mac-arm64.tar.xz Then try unpacking it and running the beta. Windows users: though I haven't run into it yet, it IS conceivable that you might need to update your Microsoft Visual C++ Redistributable runtimes. Sigil is now being built with Visual Studio 2026. Those using Windows 11 should be able to keep these up to date with the normal Windows Update service anyway. Linux AppImage Users: don't forget to mark the .AppImage file as executable after downloading. Last edited by DiapDealer; 02-09-2026 at 04:33 PM.