When will VB6 application support end?

Uservoice: The VB6 runtime it is still a component of the Windows operating system and is a component shipped in Windows 8.1. It will be supported at least through 2024

It seems clear they mean VB6 will be supported through 2024, not just VB6 on Windows 8 (whose mainstream support ends 6 years earlier anyway).

The "2024" means as part of Windows 8. The link says the VB6 runtime is part of Windows and therefore will be supported in the same way as the rest of Windows. For example Windows 8 will be supported until 2024 because that's the support lifecycle for Windows 8.

EDIT: Microsoft have now said the VB6 runtime is officially part of Windows 10 too.

EDIT: the VB6 IDE (not runtime) is no longer officially supported on any version of Windows, but there are ways to get it to work on Windows 7 and 8.