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> Adding a new keyword once in a blue moon is not a great disaster, if
> it gives us such excellent convenience.[1]

Please note that adding a new keyword will often result in breakage of
many existing programs.

when I've got a function like:

funtion do_something(from, to)

I'll got an error if "from" is a keyword.

Is there any serious programming language (except SQL) using "from" as
a keyword? If not, then it is highly likely that this word will be
freely and widely used as variable name and argument names.