The changes file does not list anything obvious to me.

The git repo listed in the module info unfortunately seems not to be accessible.

I'm not sure if it helps shed any light due to the refactoring, but the full set of differences between the two versions can be obtained through metacpan.

https://metacpan.org/diff/file?source=VPIT/autovivification-0.16&target=VPIT/autovivification-0.18

In reply to Re^3: 5.24 -> 5.28 -- what has changed in autovivification? by swl
in thread 5.24 -> 5.28 -- what has changed in autovivification? by leszekdubiel

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