Derivatives, MongoDB and freezes

[Daniel Pocock <daniel@pocock.com.au>]

I came across this on Planet Debian

http://rb.doesntexist.org/blog//posts/lack_of_cooperation_from_ubuntu/

I'm guessing that Ubuntu may not have pushed the changes to sid because
of the freeze, that may well be the answer to Rogério's questions.

Nonetheless, with derivatives and Debian itself having different release
cycles, and wearing my upstream developer hat, I can't help wondering:
how can upstreams ensure that the freshest versions of their package
propagate to the derivatives without duplicating effort?

For example, to respect the Debian release process, I've avoided
uploading the latest versions of my packages to sid, so it appears that
newer versions of those packages missed the boat when Ubuntu started
their freeze.  This means that both Debian and Ubuntu will release with
versions of the packages that are old and don't have the latest bug
fixes and/or any manual effort to work around that takes away time that
could be spent on more bug fixes or features.