Albert 0.10
Hovering over the input box the mouse wheel can now be used to browse the history, exactly the way you are used to it with Ctrl+.
Further there is a new group of themes, the Spotlight themes, which come in three flavors: Bright, Dark and Space (Gray with Blue accent).
Albert v0.10 ships with two new extensions, MPRIS and a rudimentary Secure Shell extension. Check their documentation for more details.
The terminal extension now provides the shell aliases too.
Further the files extension provides now a way to browse through paths that are not indexed. Queries that begin with either / or ~/ are interpreted as a beginning of a path and the extension lists the files in this directory. In combination with the tab completions this is a nice way to browse the file system.
The application extension allows now to ignore the OnlyShowIn and NotShowIn keys in the desktop entries.
Install Albert Quick Launcher
You can install the Albert quick launcher in Ubuntu (16.10, 16.04, 15.10, 15.04, 14.10 or 14.04) or Linux Mint (17.1 or 17) and derivatives, using the WebUpd8 PPA. Open Terminal and run the following commands:
sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install albert