Hi – I downloaded the archive (deb) file for linux 64-bit and tried to install the new build (3080) over the old (3065):

smcc@Pantera:/data/Dropbox/static_data/tarballs/sublime_text$ sudo dpkg --install sublime-text_build-3080_amd64.deb
[sudo] password for smcc:
dpkg: regarding sublime-text_build-3080_amd64.deb containing sublime-text:
sublime-text-installer conflicts with sublime-text
sublime-text (version 3080) is to be installed.

dpkg: error processing archive sublime-text_build-3080_amd64.deb (–install):
conflicting packages - not installing sublime-text
Errors were encountered while processing:
sublime-text_build-3080_amd64.deb

I suspect that I need to uninstall the current build of sublime text first, but will I lose my current settings and or/ packages?

Thanks
Sam

Others have already solved this:

Move /opt/sublime_text to /opt/sublime_text_old
Remove the old installer:
sudo apt-get remove --purge sublime-text-installer
then use dpkg to install the new archive:
sudo dpkg --install archive.deb

Works great, with no loss of setups, projects etc.