diff --git a/doc/source/index.rst b/doc/source/index.rst
index 2622436820..4a1d93d817 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -20,7 +20,7 @@ Quick Start
 
 #. Select a Linux Distribution
 
-   Only Ubuntu 14.04 (Trusty), Fedora 21 (or Fedora 22) and CentOS/RHEL
+   Only Ubuntu 14.04 (Trusty), Fedora 22 (or Fedora 23) and CentOS/RHEL
    7 are documented here. OpenStack also runs and is packaged on other
    flavors of Linux such as OpenSUSE and Debian.
 
diff --git a/files/rpms/general b/files/rpms/general
index 280468283b..5bc87b6172 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -8,9 +8,9 @@ gcc-c++
 gettext  # used for compiling message catalogs
 git-core
 graphviz # needed only for docs
-iptables-services  # NOPRIME f21,f22,f23
+iptables-services  # NOPRIME f22,f23
 java-1.7.0-openjdk-headless  # NOPRIME rhel7
-java-1.8.0-openjdk-headless  # NOPRIME f21,f22,f23
+java-1.8.0-openjdk-headless  # NOPRIME f22,f23
 libffi-devel
 libjpeg-turbo-devel # Pillow 3.0.0
 libxml2-devel # lxml
@@ -26,7 +26,7 @@ postgresql-devel  # psycopg2
 psmisc
 pyOpenSSL # version in pip uses too much memory
 python-devel
-redhat-rpm-config # MySQL-python rhbz-1195207 f21
+redhat-rpm-config # MySQL-python rhbz-1195207
 screen
 tar
 tcpdump
diff --git a/files/rpms/nova b/files/rpms/nova
index 4db9a06d95..0312e856dd 100644
--- a/files/rpms/nova
+++ b/files/rpms/nova
@@ -7,7 +7,7 @@ gawk
 genisoimage # required for config_drive
 iptables
 iputils
-kernel-modules # dist:f21,f22,f23
+kernel-modules # dist:f22,f23
 kpartx
 kvm # NOPRIME
 libvirt-bin # NOPRIME
diff --git a/lib/ceph b/lib/ceph
index 4ac498ab97..3e0839aaa2 100644
--- a/lib/ceph
+++ b/lib/ceph
@@ -116,7 +116,7 @@ function undefine_virsh_secret {
 
 # check_os_support_ceph() - Check if the operating system provides a decent version of Ceph
 function check_os_support_ceph {
-    if [[ ! ${DISTRO} =~ (trusty|f21|f22|f23) ]]; then
+    if [[ ! ${DISTRO} =~ (trusty|f22|f23) ]]; then
         echo "WARNING: your distro $DISTRO does not provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 20 (and higher)"
         if [[ "$FORCE_CEPH_INSTALL" != "yes" ]]; then
             die $LINENO "If you wish to install Ceph on this distribution anyway run with FORCE_CEPH_INSTALL=yes"
diff --git a/pkg/elasticsearch.sh b/pkg/elasticsearch.sh
index 14d13cf733..7488306845 100755
--- a/pkg/elasticsearch.sh
+++ b/pkg/elasticsearch.sh
@@ -88,7 +88,6 @@ function install_elasticsearch {
         sudo dpkg -i ${FILES}/elasticsearch-${ELASTICSEARCH_VERSION}.deb
         sudo update-rc.d elasticsearch defaults 95 10
     elif is_fedora; then
-        if [[ "$os_RELEASE" -ge "21" ]]; then
             is_package_installed java-1.8.0-openjdk-headless || install_package java-1.8.0-openjdk-headless
         else
             is_package_installed java-1.7.0-openjdk-headless || install_package java-1.7.0-openjdk-headless
diff --git a/stack.sh b/stack.sh
index bc67ce069c..b5dc51c6ec 100755
--- a/stack.sh
+++ b/stack.sh
@@ -195,7 +195,7 @@ source $TOP_DIR/stackrc
 
 # Warn users who aren't on an explicitly supported distro, but allow them to
 # override check and attempt installation with ``FORCE=yes ./stack``
-if [[ ! ${DISTRO} =~ (trusty|vivid|wily|7.0|wheezy|sid|testing|jessie|f21|f22|f23|rhel7) ]]; then
+if [[ ! ${DISTRO} =~ (trusty|vivid|wily|7.0|wheezy|sid|testing|jessie|f22|f23|rhel7) ]]; then
     echo "WARNING: this script has not been tested on $DISTRO"
     if [[ "$FORCE" != "yes" ]]; then
         die $LINENO "If you wish to run this script anyway run with FORCE=yes"
diff --git a/tools/fixup_stuff.sh b/tools/fixup_stuff.sh
index 9ae2ae7d90..193a1f7aba 100755
--- a/tools/fixup_stuff.sh
+++ b/tools/fixup_stuff.sh
@@ -135,7 +135,7 @@ if is_fedora; then
         fi
     fi
 
-    if  [[ "$os_VENDOR" == "Fedora" ]] && [[ "$os_RELEASE" -ge "21" ]]; then
+    if  [[ "$os_VENDOR" == "Fedora" ]] && [[ "$os_RELEASE" -ge "22" ]]; then
         # requests ships vendored version of chardet/urllib3, but on
         # fedora these are symlinked back to the primary versions to
         # avoid duplication of code on disk.  This is fine when