README.md: mruby is not Ruby 3.x compatible (for syntax at least)

With pattern matching as an exception.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2023-01-13 23:55:26 +09:00
parent a96a9f2c2b
commit 3f6fd994f0
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## What is mruby
mruby is the lightweight implementation of the Ruby language complying to (part
of) the [ISO standard][ISO-standard]. Its syntax is Ruby 2.x compatible.
of) the [ISO standard][ISO-standard] with more recent features provided by Ruby 3.x.
Also, its syntax is Ruby 3.x compatible except for pattern matching.
mruby can be linked and embedded within your application. We provide the
interpreter program "mruby", and the interactive mruby shell "mirb" as examples.