The 1.22 trial release includes some small backwards incompatible changes in how DateTime->from_epoch handles floating point epoch values. Basically, these values are now rounded to the nearest microsecond (millionth of a second). This release also fixes a straight up bug with the handling of negative floating point epochs where such values were incremented by a full second.
I’ve tested many downstream DateTime dependencies in the DateTime::* namespace. The only thing that broke was DateTime::Format::Strptime, for which I will release a backwards compatible fix shortly.
If no one tells me that DateTime 1.22 breaks their code I will release a non-trial version on or after Sunday the 28th.