Error Message is: The procedure entry point GetFileInformationByHandleEx could not be located in the dynamic link library KERNEL32.dll. The last working (and tested) version on XP here is v3.16.0-3. Versions 3.17.1-1, 3.17.3-1 and 3.17.4-1 produce the above error on Win XP. And yes, I know it's old, but Claws Mail was the last resort so far in getting e-mails from my provider who switched to more advanced cyphers lately. And the Win Box cannot be updated anymore...
Well I use 3.16.0 on openSUSE Leap 15.0 and don't have problems, so I'm not sure what your complaint is? But if you're still using Windows XP, I think you have bigger security problems than worrying about what version of Claws you run? Over five years out of support? https://www.microsoft.com/en-us/microsoft-365/windows/end-of-windows-xp-support Why should the developers spend any of their limited time on an obsolete operating system?
Is there a reason for bashing? Who does complain? Somebody reported an issue with a version > 3.16.0, not running on Suse. If the developers decide to stop supporting Claws for Windows XP, it's understandable and ok, but there's no reason for your kind of hostile comment. A reason that some developers and companies still support outdated operating systems might be avoiding e-waste, http://lmgtfy.com/?q=agbogbloshie+images . There are other reasons, too. Developers of Apple apps often provide app updates for unsupported devices, too. Microsoft and Apple software is often written for averaged users, that are bound to the default operating system of a device. Depending on the kind of usage, even for emails, security and privacy not always is a concern. Btw. the latest security update for XP was provided this year. "Despite the end of support for Windows XP, Microsoft has released three emergency security updates for the operating system to patch major security vulnerabilities: A patch released in May 2014 to address recently discovered vulnerabilities in Internet Explorer 6 through 11 on all versions of Windows. A patch released in May 2017 to address a vulnerability that was being leveraged by the WannaCry ransomware attack. A patch released in May 2019 to address a critical code execution vulnerability in Remote Desktop Services which can be exploited in a similar way as the WannaCry vulnerability." - https://en.wikipedia.org/wiki/Windows_XP#End_of_support
Thanks for the "helpful" answer in Comment 1: I do not understand, what security problems and lifetime and support of XP have to do with my report? The page on https://www.claws-mail.org/win32/ claims to have a download available of "Claws-Mail for Windows (32-bit)". To my best knowledge without any restrictions so far... My OS is a 32-bit XP and a Windows (not openSUSE and Linux). Perhaps I'm just missing a hint on the above page (perhaps due to this report) that since version v3.17.0 (assumed and untested) Claws Mail does not run on this stone-age OS Win XP anymore. In addition, there might be no useless downloads and wastes of bandwith for an ancient (but still in use) OS. Which might also be in the interest of the devs, no?