Just saw this pop up on the phone …
Enhancements include the addition of the ever-ubiquitous hashtags and unspecified “bug fixes.”
Will have to try it out later and report back on what “bug fixes” we’re taken care of this time.

EDIT: A long-running complaint of mine hasn’t been addressed with this update: The Flickr app used to use the ‘keywords’ IPTC field and turn it into Flickr tags. It hasn’t done so since the prettier Version 2 of the Flickr app was introduced in December. Very annoying.