Are there any ways to retrieve the Matrix version number not using PHP? Such as a get, post or using soap?
nop, Matrix doesn't reveal version number to public.
Unless you get an error message, and the error is set to show on frontend, you can see the version number in the message.
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nop, Matrix doesn't reveal version number to public.
Unless you get an error message, and the error is set to show on frontend, you can see the version number in the message.
[/quote]
Bummer. 
I ended up writing a nice method that essentially screen scrapes the value out of the /_admin interface title tag. Works well for my purposes!
I didn't need a public way of doing it. It was needed after user login.