Comment 2 for bug 1268167

unity --version shows :

unity 5.20.0

and in /var/log/apt/history.log I can see unity has been updated the 10 January :

Start-Date: 2014-01-10 09:54:33
Commandline: aptdaemon role='role-commit-packages' sender=':1.59'
Upgrade: unity:amd64 (5.20.0-0ubuntu2, 5.20.0-0ubuntu3), libxfixes3:amd64 (5.0-4ubuntu4.1, 5.0-4ubuntu4.2), libxfixes3:i386 (5.0-4ubuntu4.1, 5.0-4ubuntu4.2), libqt4-declarative:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-declarative:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), unity-2d:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), iproute:amd64 (20111117-1ubuntu2, 20111117-1ubuntu2.1), unity-2d-common:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), qdbus:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libunity-2d-private0:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), libdrm-radeon1:amd64 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libdrm-radeon1:i386 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libqt4-test:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-script:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-script:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-designer:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-network:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-network:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-dbus:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-dbus:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), unity-common:amd64 (5.20.0-0ubuntu2, 5.20.0-0ubuntu3), libqt4-opengl:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), unity-2d-spread:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), libqt4-xmlpatterns:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-xmlpatterns:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-sql-sqlite:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), duplicity:amd64 (0.6.18-0ubuntu3.3, 0.6.18-0ubuntu3.4), unity-2d-panel:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), gir1.2-appindicator3-0.1:amd64 (0.4.92-0ubuntu1, 0.4.92-0ubuntu1.1), libappindicator3-1:amd64 (0.4.92-0ubuntu1, 0.4.92-0ubuntu1.1), libqt4-help:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), x11proto-input-dev:amd64 (2.1.99.6-1, 2.3-1~precise1), libdrm2:amd64 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libdrm2:i386 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libqtcore4:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqtcore4:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libssl-dev:amd64 (1.0.1-4ubuntu5.10, 1.0.1-4ubuntu5.11), libunity-core-5.0-5:amd64 (5.20.0-0ubuntu2, 5.20.0-0ubuntu3), libssl-doc:amd64 (1.0.1-4ubuntu5.10, 1.0.1-4ubuntu5.11), libdrm-nouveau1a:amd64 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libdrm-nouveau1a:i386 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libdrm-intel1:amd64 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libdrm-intel1:i386 (2.4.43-0ubuntu0.0.3, 2.4.46-1ubuntu0.0.0.1), libqt4-sql:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-sql:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-svg:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), unity-2d-shell:amd64 (5.14.0-0ubuntu1, 5.14.0-0ubuntu2), python-appindicator:amd64 (0.4.92-0ubuntu1, 0.4.92-0ubuntu1.1), unity-services:amd64 (5.20.0-0ubuntu2, 5.20.0-0ubuntu3), libqt4-xml:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-xml:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libappindicator1:amd64 (0.4.92-0ubuntu1, 0.4.92-0ubuntu1.1), libqtgui4:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqtgui4:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), openssl:amd64 (1.0.1-4ubuntu5.10, 1.0.1-4ubuntu5.11), libqt4-sql-mysql:i386 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libqt4-scripttools:amd64 (4.8.1-0ubuntu4.5, 4.8.1-0ubuntu4.6), libxi6:amd64 (1.6.0-0ubuntu2.1, 1.7.1.901-1ubuntu1~precise1), libxi6:i386 (1.6.0-0ubuntu2.1, 1.7.1.901-1ubuntu1~precise1), libssl1.0.0:amd64 (1.0.1-4ubuntu5.10, 1.0.1-4ubuntu5.11), libssl1.0.0:i386 (1.0.1-4ubuntu5.10, 1.0.1-4ubuntu5.11)
End-Date: 2014-01-10 09:56:30

This is also visible via the Software Centre -> History -> Updates ...