[erlang-questions] On OTP rand module difference between OTP 19 and OTP 20

[zxq9]

On 2017年08月31日 木曜日 17:32:44 you wrote:
> The moral of the story: people are programming against
> behavior/implementation, not documentation. In these cases fixing the
> implementation instead of the documentation has very real possibility
> of breaking existing programs. Of course, one can tell its users that
> "it's your fault you haven't followed the documentation!" but it
> doesn't necessarily make those users happy...

There was once a boy who always rode his bike on the right side of the streets in his neighborhood. Sure, the signs all said "keep left" but, well, everyone just ignores the signs where he lives.

One day a new sign was in its place that said "keep right".

Now what should he do?

-Craig