Issue #17683 has been updated by xtkoba (Tee KOBAYASHI).


AFAIK, there was no such message as "Beginless range is experimental, and the behavior may change in future versions of Ruby!" in the first place. I am not responsible for this, but my feeling is that this feature is not quite unstable now.

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Misc #17683: Current status of beginless range (experimental or not)
https://bugs.ruby-lang.org/issues/17683#change-92348

* Author: jnchito (Junichi Ito)
* Status: Open
* Priority: Normal
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A beginless range was experimentally introduced in Ruby 2.7.0:
https://github.com/ruby/ruby/blob/v2_7_0/NEWS#label-Other+miscellaneous+changes

Is it still experimental feature or not?



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