diff --git a/archive-configs/production.yaml b/archive-configs/production.yaml
--- a/archive-configs/production.yaml
+++ b/archive-configs/production.yaml
@@ -9,6 +9,7 @@
   archiveDirectory: "/srv/production/"
 
 cacheLocation:
+  XenialQt4: "/srv/archives/production/XenialQt4/"
   WindowsQt5.7: "C:\\Archives\\Production\\"
   XenialQt5.7: "/srv/archives/production/XenialQt5.7/"
   SUSEQt5.9: "/srv/archives/production/SUSEQt5.9/"
diff --git a/archive-configs/sandbox.yaml b/archive-configs/sandbox.yaml
--- a/archive-configs/sandbox.yaml
+++ b/archive-configs/sandbox.yaml
@@ -9,6 +9,7 @@
   archiveDirectory: "/srv/sandbox/"
 
 cacheLocation:
+  XenialQt4: "/srv/archives/sandbox/XenialQt4/"
   WindowsQt5.7: "C:\\Archives\\Sandbox\\"
   XenialQt5.7: "/srv/archives/sandbox/XenialQt5.7/"
   SUSEQt5.9: "/srv/archives/sandbox/SUSEQt5.9/"
diff --git a/local-metadata/product-definitions.yaml b/local-metadata/product-definitions.yaml
--- a/local-metadata/product-definitions.yaml
+++ b/local-metadata/product-definitions.yaml
@@ -109,3 +109,45 @@
   "platforms":
     - "XenialQt5.7"
     - "WindowsQt5.7"
+
+"LegacyQt4":
+  includes:
+    - repositories:
+      - "kdesupport/phonon/*"
+      - "kdesupport/qca"
+      - "kdesupport/soprano"
+      - "kde/kdelibs"
+      - "kde/kdelibs/*"
+      - "frameworks/kactivities"
+      - "kde/kdepimlibs"
+      - "kde/kde-runtime"
+      - "kde/kdeaccessibility/jovie"
+      - "kde/kdeaccessibility/kaccessible"
+      - "kde/kdeaccessibility/kmousetool"
+      - "kde/kdeaccessibility/kmouth"
+      - "kde/kdegames/kgoldrunner"
+      - "kde/kdegames/kolf"
+      - "kde/kdegames/kreversi"
+      - "kde/kdegames/ksirk"
+      - "kde/kdegames/kubrick"
+      - "kde/kdegames/palapeli"
+      - "kde/kdegraphics/ksaneplugin"
+      - "kde/kdemultimedia/juk"
+      - "kde/kdemultimedia/kmix"
+      - "kde/kdemultimedia/kscd"
+      - "kde/kdenetwork/kget"
+      - "kde/kdenetwork/kopete"
+      - "kde/kdenetwork/kppp"
+      - "kde/kdenetwork/zeroconf-ioslave"
+      - "kde/kdesdk/kde-dev-scripts"
+      - "kde/kdesdk/umbrello"
+      - "kde/kdeutils/kremotecontrol"
+      - "kde/kdeutils/sweeper"
+      - "kde/kdewebdev/kfilereplace"
+      - "kde/kdewebdev/kimagemapeditor"
+      - "kde/kdewebdev/klinkstatus"
+      platforms:
+      - "XenialQt4"
+  branchGroups:
+    - "latest-qt4"
+    - "stable-qt4"
diff --git a/system-images/ubuntu-lts-qt4/Dockerfile b/system-images/ubuntu-lts-qt4/Dockerfile
new file mode 100644
--- /dev/null
+++ b/system-images/ubuntu-lts-qt4/Dockerfile
@@ -0,0 +1,48 @@
+FROM ubuntu:xenial
+MAINTAINER Luigi Toscano <luigi.toscano@tiscali.it>
+
+RUN echo "deb http://us.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse" >> /etc/apt/sources.list
+# Base requirements for CI
+RUN apt-get update && apt-get -y dist-upgrade && DEBIAN_FRONTEND=noninteractive apt-get -y install \
+    wget python3-paramiko python3-lxml python3-yaml language-pack-en openssh-server ssh openjdk-8-jdk git
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get -y build-dep kde4libs
+# KDELibs dependencies which will be compiled from source
+RUN DEBIAN_FRONTEND=noninteractive apt-get --yes --purge remove \
+    phonon-backend-* libphonon4 libqca2
+# Various dependencies
+RUN DEBIAN_FRONTEND=noninteractive apt-get -y install \
+    # soprano
+    doxygen libclucene-dev libraptor2-dev librasqal3-dev librdf0-dev libiodbc2-dev virtuoso-opensource-6.1-common \
+    # phonon
+    libpulse-dev \
+    # phonon-vlc, phonon-gstreamer
+    libvlc-dev libvlccore-dev libgstreamer-plugins-base1.0-dev \
+    # kdelibs
+    xsltproc shared-desktop-ontologies libhupnp-dev libfam-dev \
+    # akonadi and kdepimlibs (required by kde-runtime)
+    libboost-program-options-dev libsqlite3-dev libgpgme11-dev libsasl2-dev libical-dev libqjson-dev libboost-graph-dev libldap2-dev libprison-dev \
+    # kde-runtime
+    libgcrypt20-dev libslp-dev network-manager-dev libntrack-qt4-dev libsmbclient-dev libssh-dev libexiv2-dev libasound2-dev libcanberra-dev \
+    # libkdegames
+    libopenal-dev libsndfile1-dev \
+    # kopete
+    libqimageblitz-dev libexpat1-dev libidn11-dev libjsoncpp-dev libsrtp0-dev libgadu-dev libortp-dev libotr5-dev libv4l-dev libmediastreamer-dev \
+    # kremotecontrol
+    libxtst-dev
+
+# User for Jenkins access
+RUN useradd -m -u 1000 --user-group -d /home/jenkins jenkins
+RUN echo 'jenkins:1234' | chpasswd #changeme
+
+RUN mkdir /tmp/xdg-runtime-dir
+RUN chown jenkins.jenkins /tmp/xdg-runtime-dir
+
+# SSH
+RUN mkdir -p /var/run/sshd
+USER root
+RUN sed s,exit\ 101,exit\ 0, /usr/sbin/policy-rc.d -i
+RUN DEBIAN_FRONTEND=noninteractive dpkg-reconfigure openssh-server
+EXPOSE 22
+
+CMD ["/usr/sbin/sshd", "-D"]