> Compare that with LaTeX which shifts with each tex-live release, and which means that markup written some years ago may not format without hand editing on a modern LaTeX release.
What? Certainly details of individual packages may change, including addition or removal of functionality, over time, but I don't even know what it means to say that "LaTeX shifts". The underlying markup language for LaTeX, which is the same as that for TeX, is very flexible, but has had the same flexibility since at least 1982, if not 1978.
I understand the idea that built-in extensibility leaves a platform, to some extent, to blame for its plug-ins; but many people in this discussion have proposed building some sort of plug-in architecture for Markdown, too.
What? Certainly details of individual packages may change, including addition or removal of functionality, over time, but I don't even know what it means to say that "LaTeX shifts". The underlying markup language for LaTeX, which is the same as that for TeX, is very flexible, but has had the same flexibility since at least 1982, if not 1978.
I understand the idea that built-in extensibility leaves a platform, to some extent, to blame for its plug-ins; but many people in this discussion have proposed building some sort of plug-in architecture for Markdown, too.