Upgrading Phabricator
Phabricator User Documentation (Introduction)

This document contains instructions for keeping Phabricator up to date.

Overview

Phabricator is under active development, and new features are released continuously. Staying up to date will keep your install secure.

We recommend installs upgrade regularly (every 1-2 weeks). Upgrades usually go smoothly and complete in a few minutes. If you put off upgrades for a long time, it may take a lot more work to bring things up to date if you want access to a useful new feature or an important security change.

Staying On Top of Changes

We release a weekly Changelog, which describes changes in the previous week. You can look at the changelogs for an idea of what new features are available, upcoming changes, security information, and warnings about compatibility issues or migrations.

Stable Branch

You can either run the master or stable branch of Phabricator. The stable branch is run in the Phacility Cluster, and lags about a week behind master.

The stable branch is a little more stable than master, and may be helpful if you administrate a larger install.

We promote master to stable about once a week, then publish the changelog and deploy the cluster. During the week, major bugfixes are cherry-picked to the stable branch. The changelog lists the stable hashes for that week, as well as any fixes which were cherry-picked.

To switch to stable, check the branch out in each working copy:

phabricator/ $ git checkout stable
arcanist/ $ git checkout stable
libphutil/ $ git checkout stable

You can now follow the upgrade process normally.

Upgrade Process

IMPORTANT: You MUST restart Phabricator after upgrading. For help, see Restarting Phabricator.
IMPORTANT: You MUST upgrade libphutil, arcanist and phabricator at the same time.

Phabricator runs on many different systems, with many different webservers. Given this diversity, we don't currently maintain a comprehensive upgrade script which can work on any system. However, the general steps are the same on every system:

  • Stop the webserver (including php-fpm, if you use it).
  • Stop the daemons, with phabricator/bin/phd stop.
  • Run git pull in libphutil/, arcanist/ and phabricator/.
  • Run phabricator/bin/storage upgrade.
  • Start the daemons, with phabricator/bin/phd start.
  • Restart the webserver (and php-fpm, if you stopped it earlier).

For some more discussion details, see Configuration Guide.

This template script roughly outlines the steps required to upgrade Phabricator. You'll need to adjust paths and commands a bit for your particular system:

#!/bin/sh

set -e
set -x

# This is an example script for updating Phabricator, similar to the one used to
# update <https://secure.phabricator.com/>. It might not work perfectly on your
# system, but hopefully it should be easy to adapt. This script is not intended
# to work without modifications.

# NOTE: This script assumes you are running it from a directory which contains
# arcanist/, libphutil/, and phabricator/.

ROOT=`pwd` # You can hard-code the path here instead.

### UPDATE WORKING COPIES ######################################################

cd $ROOT/libphutil
git pull

cd $ROOT/arcanist
git pull

cd $ROOT/phabricator
git pull


### CYCLE WEB SERVER AND DAEMONS ###############################################

# Stop daemons.
$ROOT/phabricator/bin/phd stop

# If running the notification server, stop it.
# $ROOT/phabricator/bin/aphlict stop

# Stop the webserver (apache, nginx, lighttpd, etc). This command will differ
# depending on which system and webserver you are running: replace it with an
# appropriate command for your system.
# NOTE: If you're running php-fpm, you should stop it here too.

sudo /etc/init.d/httpd stop


# Upgrade the database schema. You may want to add the "--force" flag to allow
# this script to run noninteractively.
$ROOT/phabricator/bin/storage upgrade

# Restart the webserver. As above, this depends on your system and webserver.
# NOTE: If you're running php-fpm, restart it here too.
sudo /etc/init.d/httpd start

# Restart daemons.
$ROOT/phabricator/bin/phd start

# If running the notification server, start it.
# $ROOT/phabricator/bin/aphlict start