Aegir just installed 1.11 new when it should have upgraded

apt output

:~$ apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages have been kept back:
  drush
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
2 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up aegir-hostmaster (1.11) ...
PHP Fatal error:  Call to a member function get_services() on a non-object in /usr/share/drush/commands/provision/provision.context.inc on line 395
installing the Aegir frontend (Drupal with the hostmaster profile), please wait...
Project information for drupal retrieved.                            [ok]
drupal downloaded from                                               [ok]
http://ftp.drupal.org/files/projects/drupal-6.29.tar.gz.
hostmaster cloned from http://git.drupal.org/project/hostmaster.git. [ok]
Checked out tag 6.x-1.11.                                            [ok]
Found makefile: hostmaster.make                                      [ok]
Project information for admin_menu retrieved.                        [ok]
Project information for openidadmin retrieved.                       [ok]
Project information for install_profile_api retrieved.               [ok]
Project information for jquery_ui retrieved.                         [ok]
Project information for modalframe retrieved.                        [ok]
admin_menu downloaded from                                           [ok]
http://ftp.drupal.org/files/projects/admin_menu-6.x-1.8.tar.gz.
openidadmin downloaded from                                          [ok]
http://ftp.drupal.org/files/projects/openidadmin-6.x-1.2.tar.gz.
install_profile_api downloaded from                                  [ok]
http://ftp.drupal.org/files/projects/install_profile_api-6.x-2.1.tar.gz.
jquery_ui downloaded from                                            [ok]
http://ftp.drupal.org/files/projects/jquery_ui-6.x-1.3.tar.gz.
modalframe downloaded from                                           [ok]
http://ftp.drupal.org/files/projects/modalframe-6.x-1.6.tar.gz.
jquery_ui downloaded from                                            [ok]
http://jquery-ui.googlecode.com/files/jquery.ui-1.6.zip.
Created [redacted] database                                    [success]
Creating master server node                                          [status]
Creating db server node                                              [status]
Configuring menu items                                               [status]
Configuring Eldir theme                                              [status]
Configuring default blocks                                           [status]
Configuring roles                                                    [status]
Content permissions have been rebuilt.                               [status]
Dispatch command was run successfully                                [success]
Your existing cron entry will be replaced.                           [warning]
Aegir 6.x-1.11 automated install script
==============================================================================
Some settings have not been provided and will now be prompted.
Don't worry: you will get to review those settings after the final install

This script will operate the following changes in your system:

1. Create server-level configuration directories
2. Download drush_make
3. Create the Hostmaster frontend platform
4. Install the frontend site
5. Setup the dispatcher (a user cron job)

We are making the following assumptions:
 * you have read and are following the install instructions at:
    http://community.aegirproject.org/installing
 * the FQDN of this machine is valid and resolves
 * you are executing this script as your "aegir" user

The following settings will be used:
 Aegir frontend URL: [redacted]
 Master server FQDN: [redacted]
 Aegir root: /var/aegir
 Aegir user: aegir
 Web group: www-data
 Web server: apache
 Aegir DB host: localhost
 Aegir DB user: root
 Aegir DB password: <previously set>
 Drush make version: 6.x-2.3
 Aegir version: 6.x-1.11
 Aegir platform path: /var/aegir/hostmaster-6.x-1.11
 Aegir makefile: /usr/share/drush/commands/provision/aegir.make
 Admin email: aegir@[redacted]

Do you really want to proceed with the install (y/n): y
Initializing the hosting system
This command will replace your crontab for this user. continue? (y/n): y
/usr/share/drush/drush.php '@hostmaster' hosting-dispatch 

==============================================================================


Congratulations, Aegir has now been installed.

You should now log in to the Aegir frontend by opening the following link in your web browser:

http://[redacted]/user/reset/1/[redacted]


==============================================================================

Aegir frontend bootstrap correctly, operation was a success!

Setting up aegir (1.11) ...