I just read in the Ubuntu Mailing List that the release freeze is immenient which is going to happen tomorrow. This post on the mailing list is from Yesterday.

With the release of Ubuntu 8.10 less than 2 1/2 weeks away, it will shortly
be time to freeze the archive to limit the number of last-minute changes
entering the release.  On Thursday, October 16, the archive will be frozen,
after which uploads to main will require approval from the release team and
should be done only for changes which are critical for the release.

Since the archive is going to be frozen tomorrow anything that has to be uploaded will have to be approved. Remember that only the critical bug fixes will most likely be allowed.

The list of release-critical bugs is tracked here:

https://bugs.launchpad.net/ubuntu/intrepid/+bugs?field.milestone=1326

Additional bugs that are considered “targets of opportunity” for the release
are found at:

https://bugs.launchpad.net/ubuntu/intrepid/+bugs

If there are other bugs that you believe are important to fix before the
release which are not yet listed on the above pages, please get in touch
with me or another member of the release team.

Any bugs that can be squashed will be helpful as I have been using Intrepid for a while now and have been having some problems. Half of the bug reports could not be verified as the firefox3-dbgsym will not run on any Firefox above 3.0-b5. The other half of my bug reports is Inkscape. It has been verified but as far as I can tell nothing has been done on it.

Although uploads to main must be approved by the release team before they
are accepted, this does not mean that you need to get approval from the
release team prior to upload.  If you have a reasonable belief that the
upload will be accepted (for example, because it includes minimal changes
necessary to fix a release-targetted bug), you are encouraged to upload
directly, so that the package can be reviewed in the “unapproved” queue
itself.

For uploads to universe and multiverse, the MOTU Release Team has published
their guidelines for freeze exceptions here:

https://lists.ubuntu.com/archives/ubuntu-devel/2008-April/025259.html

If you have any questions about this process, please follow up to the
ubuntu-devel mailing list.

Thanks,
—
Steve Langasek
On behalf of the Ubuntu release team

So as Steve said you can upload directly if your fixes include minimum changes to complete the bug fix… though the fix will be in the unapproved queue while waiting for confirmation.

Thanks for reading,
Ryan Orser.