This blog is updated daily.
A general description is here.
‘format.POSIXlt()’ now also recycles the ‘zone’ and ‘gmtoff’ list components to full length when needed, and its internal C code detects ‘have_zone’ in more cases. In some cases, this changes its output to become compatible with ‘format.POSIXct()’.
In the ‘numeric’ method for ‘all.equal()’, a numeric ‘scale’ argument is now checked to be positive and allowed to be of length > 1. (The latter worked originally and with a warning in recent years).