Maybe you can recover it.
Take a look to /var/log/apt/history.log to see what was removed and not replaced by a newer version.
That is what I would do first before installing new, there are other log files to check out too.
On the other hand, a fresh installation is kind of cleaning up, isn't it (-; ?
And one word, since Nov is a long time for a rolling distribution, especially debian sid/unstable.