Quickly: newer bzr on Dapper
Dapper only has bzr 0.8, but Etienne Goyer has made newer bzr packages that run on Dapper. I installed 0.11 like:
sudo apt-get install bzr=0.11-0ubuntu1
I had to force the version because (a) my /etc/apt/preferences makes
it necessary, and (b) I didn’t want the newer 0.12 ones that looked
like pre-releases.
The entries in my /etc/apt/sources.list:
# bzr
deb http://bazaar-vcs.org/packages/debs/ /
deb-src http://bazaar-vcs.org/packages/debs/ /
You’ll also need to put PGP key ID EEA6AD6A in your APT keyring.