diff --git a/tools/abandon_old_reviews.sh b/tools/abandon_old_reviews.sh
new file mode 100644
index 00000000..36a07c4e
--- /dev/null
+++ b/tools/abandon_old_reviews.sh
@@ -0,0 +1,169 @@
+#!/usr/bin/env bash
+#   Copyright 2019 Red Hat, Inc.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+# WARNING!
+# Please do not run this script without talking to the TripleO PTL. Auto
+# abandoning people's changes is a good thing, but must be done with care.
+#
+# before you run this modify your .ssh/config to create a
+# review.opendev.org entry:
+#
+#   Host review.opendev.org
+#   User <yourgerritusername>
+#   Port 29418
+#
+
+DRY_RUN=0
+CLEAN_PROJECT=""
+
+function print_help {
+    echo "Script to abandon patches without activity for more than 4 weeks."
+    echo "Usage:"
+    echo "      ./abandon_old_reviews.sh [--dry-run] [--project <project_name>] [--help]"
+    echo " --dry-run                    In dry-run mode it will only print what patches would be abandoned "
+    echo "                              but will not take any real actions in gerrit"
+    echo " --project <project_name>     Only check patches from <project_name> if passed."
+    echo "                              It must be one of the projects which are a part of the TripleO-group."
+    echo "                              If project is not provided, all projects from the TripleO-group will be checked"
+    echo " --help                       Print help message"
+}
+
+while [ $# -gt 0 ]; do
+    key="${1}"
+
+    case $key in
+        --dry-run)
+            echo "Enabling dry run mode"
+            DRY_RUN=1
+            shift # past argument
+        ;;
+        --project)
+            CLEAN_PROJECT="project:openstack/${2}"
+            shift # past argument
+            shift # past value
+        ;;
+        --help)
+            print_help
+            exit 2
+    esac
+done
+
+set -o errexit
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+function abandon_review {
+    local gitid=$1
+    shift
+    local msg=$@
+    unassign_and_new_bug $gitid
+    if [ $DRY_RUN -eq 1 ]; then
+        echo "Would abandon $gitid"
+    else
+        echo "Abandoning $gitid"
+        ssh review.opendev.org gerrit review $gitid --abandon --message \"$msg\"
+    fi
+}
+
+function unassign_and_new_bug {
+    # unassign current assignee and set bug to 'new' status
+    local gitid=$1
+    cm=$(ssh review.opendev.org "gerrit query $gitid --current-patch-set --format json" | jq .commitMessage)
+    for closes in $(echo -e $cm | awk '/[cC]loses-[bB]ug/ {match($0,/[0-9]+/); bug=substr($0,RSTART,RLENGTH); print bug}'); do
+        if [ $DRY_RUN -eq 1 ]; then
+            echo "Would unassign and tag 'timeout-abandon' $closes"
+        else
+            echo "Attempting to change status of bug $closes to New"
+            python "$DIR/unassign_bug.py" $closes
+        fi
+    done
+}
+
+PROJECTS="($(
+python - <<EOF
+import urllib2
+import yaml
+project = "$CLEAN_PROJECT"
+data = urllib2.urlopen("https://opendev.org/openstack/"
+                       "governance/raw/branch/master/reference/projects.yaml")
+governance = yaml.safe_load(data)
+stadium = governance["tripleo"]["deliverables"].keys()
+query = ["project:openstack/%s" % p for p in stadium]
+if project:
+    print project if project in query else ""
+else:
+    print ' OR '.join(query)
+EOF
+))"
+
+if [ "$PROJECTS" = "()" ]; then
+    echo "Project $CLEAN_PROJECT not found. It is probably not part of the TripleO deliverables."
+    exit 1
+fi
+
+# first purge all the reviews that are more than 90 days old and blocked by a core -2
+
+blocked_reviews=$(ssh review.opendev.org "gerrit query --current-patch-set --format json $PROJECTS status:open age:90d label:Code-Review<=-2" | jq .currentPatchSet.revision | grep -v null | sed 's/"//g')
+
+blocked_msg=$(cat <<EOF
+This review is > 90 days without comment and currently blocked by a
+core reviewer with a -2. We are abandoning this for now.
+Feel free to reactivate the review by pressing the restore button and
+contacting the reviewer with the -2 on this review to ensure you
+address their concerns. For more details check policy
+https://specs.openstack.org/openstack/tripleo-specs/specs/policy/patch-abandonment.html
+EOF
+)
+
+for review in $blocked_reviews; do
+    echo "Blocked review $review"
+    abandon_review $review $blocked_msg
+done
+
+# then purge all the reviews that are > 90d with no changes and Zuul has -1ed
+
+failing_reviews=$(ssh review.opendev.org "gerrit query  --current-patch-set --format json $PROJECTS status:open age:90d NOT label:Verified>=1,Zuul" | jq .currentPatchSet.revision | grep -v null | sed 's/"//g')
+
+failing_msg=$(cat <<EOF
+This review is > 90 days without comment, and failed Zuul the last
+time it was checked. We are abandoning this for now.
+Feel free to reactivate the review by pressing the restore button and
+leaving a 'recheck' comment to get fresh test results.
+For more details check policy
+https://specs.openstack.org/openstack/tripleo-specs/specs/policy/patch-abandonment.html
+EOF
+)
+
+for review in $failing_reviews; do
+    echo "Failing review $review"
+    abandon_review $review $failing_msg
+done
+
+# then purge all the reviews that are > 180 days with WIP -1
+
+very_old_reviews=$(ssh review.opendev.org "gerrit query --current-patch-set --format json $PROJECTS status:open age:180d Workflow<=-1" | jq .currentPatchSet.revision | grep -v null | sed 's/"//g')
+
+very_old_msg=$(cat <<EOF
+This review is > 180 days without comment and WIP -1. We are abandoning this for now.
+Feel free to reactivate the review by pressing the restore button and
+contacting the reviewers.
+For more details check policy
+https://specs.openstack.org/openstack/tripleo-specs/specs/policy/patch-abandonment.html
+EOF
+)
+
+for review in $very_old_reviews; do
+    echo "Workflow -1 review $review"
+    abandon_review $review $very_old_msg
+done
\ No newline at end of file
diff --git a/tools/unassign_bug.py b/tools/unassign_bug.py
new file mode 100644
index 00000000..da9043fa
--- /dev/null
+++ b/tools/unassign_bug.py
@@ -0,0 +1,56 @@
+#
+#   Copyright 2019 Red Hat, Inc.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+"""Unassigns assignee from tripleobug, adds message and tag.
+If you get the following exception, you need X11 and python-dbus installed:
+'RuntimeError: No recommended backend was available. Install
+the keyrings.alt package if you want to use the non-recommended
+backends. See README.rst for details.'
+or check solutions from:
+https://github.com/jaraco/keyring/issues/258
+"""
+
+import os
+import sys
+
+from launchpadlib.launchpad import Launchpad
+
+
+MSG_BODY = "\
+This bug has had a related patch abandoned and has been automatically \
+un-assigned due to inactivity. Please re-assign yourself if you are \
+continuing work or adjust the state as appropriate if it is no longer valid."
+
+
+def unassign(bug_num):
+    login = os.environ.get('LAUNCHPAD_LOGIN', 'tripleo')
+    password = os.environ.get('LAUNCHPAD_PASSWORD', 'production')
+    launchpad = Launchpad.login_with(login, password)
+    b = launchpad.bugs[bug_num]
+    for task in b.bug_tasks:
+        for tag in task.bug_target_name:
+            if 'tripleo' not in tag:
+                # try not to interfere with non-tripleo projects too much
+                continue
+        task.assignee = None
+        if task.status == "In Progress":
+            task.status = 'New'
+        task.lp_save()
+    b.tags = b.tags + ['timeout-abandon']
+    b.newMessage(content=MSG_BODY, subject='auto-abandon-script')
+    b.lp_save()
+
+
+if __name__ == '__main__':
+    unassign(int(sys.argv[1]))