Comment by Retr0id

There's also the Python approach, where dict() iteration became insertion-ordered as of Python 3.7+ (it was also ordered in 3.6, but only as an implementation detail, not as a language feature).

At the time I thought this was a questionable decision that'd cause nightmare debugging scenarios, where someone writes code accidentally depending on insertion-ordered iteration, only to deploy it on a python runtime without it (<=3.5). I'm sure this has happened to someone, but at least it hasn't happened to me.

Reference: https://stackoverflow.com/a/60775590