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weblate/docs/admin/upgrade.rst
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Upgrading Weblate
=================
Docker image upgrades
---------------------
The official Docker image (see :doc:`install/docker`) has all Weblate upgrade steps
integrated. There are typically no manual steps needed besides pulling latest version.
.. seealso::
:ref:`upgrading-docker`
.. _generic-upgrade-instructions:
Generic upgrade instructions
----------------------------
Before upgrading, please check the current :ref:`requirements` as they might have
changed. Once all requirements are installed or updated, please adjust your
:file:`settings.py` to match changes in the configuration (consult
:file:`settings_example.py` for correct values).
Always check :ref:`version-specific-instructions` before upgrade. In case you
are skipping some versions, please follow instructions for all versions you are
skipping in the upgrade. Sometimes it's better to upgrade to some intermediate
version to ensure a smooth migration. Upgrading across multiple releases should
work, but is not as well tested as single version upgrades.
.. note::
It is recommended to perform a full database backup prior to upgrade so that you
can roll back the database in case upgrade fails, see :doc:`backup`.
#. Stop wsgi and Celery processes. The upgrade can perform incompatible changes in the
database, so it is always safer to avoid old processes running while upgrading.
#. Upgrade Weblate code.
For pip installs it can be achieved by:
.. code-block:: sh
pip install -U "Weblate[all]==version"
Or, if you just want to get the latest released version:
.. code-block:: sh
pip install -U "Weblate[all]"
If you don't want to install all of the optional dependencies do:
.. code-block:: sh
pip install -U Weblate
With Git checkout you need to fetch new source code and update your installation:
.. code-block:: sh
cd weblate-src
git pull
# Update Weblate inside your virtualenv
. ~/weblate-env/bin/pip install -e '.[all]'
# Install dependencies directly when not using virtualenv
pip install --upgrade -r requirements.txt
# Install optional dependencies directly when not using virtualenv
pip install --upgrade -r requirements-optional.txt
#. New Weblate release might have new :ref:`optional-deps`, please check if they cover
features you want.
#. Upgrade configuration file, refer to :file:`settings_example.py` or
:ref:`version-specific-instructions` for needed steps.
#. Upgrade database structure:
.. code-block:: sh
weblate migrate --noinput
#. Collect updated static files (see :ref:`server` and :ref:`static-files`):
.. code-block:: sh
weblate collectstatic --noinput --clear
#. Compress JavaScript and CSS files (optional, see :ref:`production-compress`):
.. code-block:: sh
weblate compress
#. If you are running version from Git, you should also regenerate locale files
every time you are upgrading. You can do this by invoking:
.. code-block:: sh
weblate compilemessages
#. Verify that your setup is sane (see also :ref:`production`):
.. code-block:: sh
weblate check --deploy
#. Restart Celery worker (see :ref:`celery`).
.. _version-specific-instructions:
Version specific instructions
-----------------------------
Upgrade from 2.x
~~~~~~~~~~~~~~~~
If you are upgrading from 2.x release, always first upgrade to 3.0.1 and then
continue upgrading in the 3.x series. Upgrades skipping this step are not
supported and will break.
.. seealso::
`Upgrade from 2.20 to 3.0 in Weblate 3.0 documentation <https://docs.weblate.org/en/weblate-3.0.1/admin/upgrade.html#upgrade-3>`_
Upgrade from 3.x
~~~~~~~~~~~~~~~~
If you are upgrading from 3.x release, always first upgrade to 4.0.4 or 4.1.1
and then continue upgrading in the 4.x series. Upgrades skipping this step are
not supported and will break.
.. seealso::
`Upgrade from 3.11 to 4.0 in Weblate 4.0 documentation <https://docs.weblate.org/en/weblate-4.0.4/admin/upgrade.html#upgrade-from-3-11-to-4-0>`_
Upgrade from 4.0 to 4.1
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* There are several changes in :file:`settings_example.py`, most notable middleware changes, please adjust your settings accordingly.
* There are new file formats, you might want to include them in case you modified the :setting:`WEBLATE_FORMATS`.
* There are new quality checks, you might want to include them in case you modified the :setting:`CHECK_LIST`.
* There is change in ``DEFAULT_THROTTLE_CLASSES`` setting to allow reporting of rate limiting in the API.
* There are some new and updated requirements.
* There is a change in :setting:`django:INSTALLED_APPS`.
* The ``MT_DEEPL_API_VERSION`` setting has been removed in Version 4.7. The :ref:`mt-deepl` machine translation now uses the new ``MT_DEEPL_API_URL`` instead. You might need to adjust ``MT_DEEPL_API_URL`` to match your subscription.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.1 to 4.2
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* Upgrade from 3.x releases is not longer supported, please upgrade to 4.0 or 4.1 first.
* There are some new and updated requirements.
* There are several changes in :file:`settings_example.py`, most notable new middleware and changed application ordering.
* The keys for JSON based formats no longer include leading dot. The strings are adjusted during the database migration, but external components might need adjustment in case you rely on keys in exports or API.
* The Celery configuration was changed to no longer use ``memory`` queue. Please adjust your startup scripts and ``CELERY_TASK_ROUTES`` setting.
* The Weblate domain is now configured in the settings, see :setting:`SITE_DOMAIN` (or :envvar:`WEBLATE_SITE_DOMAIN`). You will have to configure it before running Weblate.
* The username and email fields on user database now should be case insensitive unique. It was mistakenly not enforced with PostgreSQL.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.2 to 4.3
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* There are some changes in quality checks, you might want to include them in case you modified the :setting:`CHECK_LIST`.
* The source language attribute was moved from project to a component what is exposed in the API. You will need to update :ref:`wlc` in case you are using it.
* The database migration to 4.3 might take long depending on number of strings you are translating (expect around one hour of migration time per 100,000 source strings).
* There is a change in :setting:`django:INSTALLED_APPS`.
* There is a new setting :setting:`SESSION_COOKIE_AGE_AUTHENTICATED` which complements :setting:`django:SESSION_COOKIE_AGE`.
* In case you were using :command:`hub` or :command:`lab` to integrate with GitHub or GitLab, you will need to reconfigure this, see :setting:`GITHUB_CREDENTIALS` and :setting:`GITLAB_CREDENTIALS`.
.. versionchanged:: 4.3.1
* The Celery configuration was changed to add ``memory`` queue. Please adjust your startup scripts and ``CELERY_TASK_ROUTES`` setting.
.. versionchanged:: 4.3.2
* The ``post_update`` method of add-ons now takes extra ``skip_push`` parameter.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.3 to 4.4
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* There is a change in :setting:`django:INSTALLED_APPS`, ``weblate.configuration`` has to be added there.
* Django 3.1 is now required.
* In case you are using MySQL or MariaDB, the minimal required versions have increased, see :ref:`mysql`.
.. versionchanged:: 4.4.1
* :ref:`mono_gettext` now uses both ``msgid`` and ``msgctxt`` when present. This will change identification of translation strings in such files breaking links to Weblate extended data such as screenshots or review states. Please make sure you commit pending changes in such files prior upgrading and it is recommended to force loading of affected component using :wladmin:`loadpo`.
* Increased minimal required version of translate-toolkit to address several file format issues.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.4 to 4.5
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* The migration might take considerable time if you had big glossaries.
* Glossaries are now stored as regular components.
* The glossary API is removed, use regular translation API to access glossaries.
* There is a change in :setting:`django:INSTALLED_APPS` - ``weblate.metrics`` should be added.
.. versionchanged:: 4.5.1
* There is a new dependency on the `pyahocorasick` module.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.5 to 4.6
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* There are new file formats, you might want to include them in case you modified the :setting:`WEBLATE_FORMATS`.
* API for creating components now automatically uses :ref:`internal-urls`, see :http:post:`/api/projects/(string:project)/components/`.
* There is a change in dependencies and :setting:`django:PASSWORD_HASHERS` to prefer Argon2 for passwords hashing.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.6 to 4.7
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
Notable configuration or dependencies changes:
* There are several changes in :file:`settings_example.py`, most notable middleware changes (:setting:`django:MIDDLEWARE`), please adjust your settings accordingly.
* The :ref:`mt-deepl` machine translation now has a generic ``MT_DEEPL_API_URL`` setting to adapt to different subscription models more flexibly.
The ``MT_DEEPL_API_VERSION`` setting is no longer used.
* Django 3.2 is now required.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.7 to 4.8
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
There are no additional upgrade steps needed in this release.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.8 to 4.9
~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* There is a change in storing metrics, the upgrade can take long time on larger sites.
.. seealso:: :ref:`generic-upgrade-instructions`
.. _upgrade-4.10:
Upgrade from 4.9 to 4.10
~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* There is a change in per-project groups, the upgrade can take long time on sites with thousands of projects.
* Django 4.0 has made some incompatible changes, see
:ref:`django:backwards-incompatible-4.0`. Weblate still supports Django 3.2
for now, in case any of these are problematic. Most notable changes which
might affect Weblate:
* Dropped support for PostgreSQL 9.6, Django 4.0 supports PostgreSQL 10 and higher.
* Format of :setting:`django:CSRF_TRUSTED_ORIGINS` was changed.
* The Docker container now uses Django 4.0, see above for changes.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.10 to 4.11
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* Weblate now requires Python 3.7 or newer.
* The implementation of :ref:`manage-acl` has changed, removing the project
prefix from the group names. This affects API users.
* Weblate now uses ``charset-normalizer`` instead of ``chardet`` module for character set detection.
* **Changed in 4.11.1:** There is a change in ``REST_FRAMEWORK`` setting (removal of one of the backends in ``DEFAULT_AUTHENTICATION_CLASSES``).
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.11 to 4.12
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* There are no special steps required.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.12 to 4.13
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* The :ref:`languages` are now automatically updated on upgrade, use :setting:`UPDATE_LANGUAGES` to disable that.
* Handling of context and location has been changed for :ref:`winrc`,
:ref:`html`, :ref:`idml`, and :ref:`txt` file formats. In most cases the
context is now shown as location.
* The machine translation services are now configured using the user interface,
settings from the configuration file will be imported during the database
migration.
.. seealso:: :ref:`generic-upgrade-instructions`
.. _up-4-14:
Upgrade from 4.13 to 4.14
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* The Java formatting checks now match GNU gettext flags. The flags set in
Weblate will be automatically migrated, but third-party scripts will need to
use ``java-printf-format`` instead of ``java-format`` and ``java-format``
instead of ``java-messageformat``.
* The `jellyfish` dependency has been replaced by `rapidfuzz`.
* **Changed in 4.14.2:** Deprecated insecure configuration of VCS service API
keys via _TOKEN/_USERNAME configuration instead of _CREDENTIALS list. In
Docker, please add matching _HOST directive. For example see
:envvar:`WEBLATE_GITHUB_HOST` and :setting:`GITHUB_CREDENTIALS`.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.14 to 4.15
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* Weblate now requires ``btree_gin`` extension in PostgreSQL. The migration process
will install it if it has sufficient privileges. See :ref:`dbsetup-postgres` for manual setup.
* The Docker image no longer enables debug mode by default. In case you want
it, enable it in the environment using :envvar:`WEBLATE_DEBUG`.
* The database migration make take hours on larger instances due to recreating some
of the indexes.
* **Changed in 4.15.1:** The default value for ``DEFAULT_PAGINATION_CLASS`` in
rest framework settings was changed.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.15 to 4.16
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* Celery beat is now storing the tasks schedule in the database,
``CELERY_BEAT_SCHEDULER`` and :setting:`django:INSTALLED_APPS` need to be
changed for that.
* The deprecated VCS setting for credentials is no longer supported, see :ref:`up-4-14`.
* Upgrade of `django-crispy-forms` requires changes in :setting:`django:INSTALLED_APPS`.
* Integration of `django-cors-headers` requires changes in :setting:`django:INSTALLED_APPS` and :setting:`django:MIDDLEWARE`.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.16 to 4.17
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* Migration to rewritten metrics storage might take considerable time on larger
Weblate instance (expect around 15 minutes per GB of ``metrics_metric``
table). To reduce downtime, you can copy
:file:`weblate/metrics/migrations/*.py` from Weblate 4.17 to 4.16 and start
the migration in the background. Once it is completed, perform full upgrade
as ususal.
* Docker container now requires PostgreSQL 12 or newer, please see
:ref:`docker-postgres-upgrade` for upgrade instructions. Weblate itself
supports older versions as well, when appropriate Django version is installed.
.. warning::
Migration on MySQL will try to load all metrics into memory due to
limitation of the Python database driver. You might need to prune metrics
prior to migration if you want to continue using MySQL. Please consider
switching to PostgreSQL, see :ref:`database-migration`.
.. seealso:: :ref:`generic-upgrade-instructions`
Upgrade from 4.17 to 4.18
~~~~~~~~~~~~~~~~~~~~~~~~~
Please follow :ref:`generic-upgrade-instructions` in order to perform update.
* Dropped support for PostgreSQL 10, 11, MySQL 5.7 and MariaDB 10.2, 10.3.
* Dropped support for Python 3.7.
* The :ref:`fluent` format changed identification of some strings, you might
need to force reloading of the translation files to see the changes.
* There are several changes in :file:`settings_example.py`, most notable is change in ``COMPRESS_OFFLINE_CONTEXT``, please adjust your settings accordingly.
.. seealso:: :ref:`generic-upgrade-instructions`
.. _py3:
Upgrading from Python 2 to Python 3
-----------------------------------
Weblate no longer supports Python older than 3.6. In case you are still running
on older version, please perform migration to Python 3 first on existing
version and upgrade later. See `Upgrading from Python 2 to Python 3 in the Weblate
3.11.1 documentation
<https://docs.weblate.org/en/weblate-3.11.1/admin/upgrade.html#upgrading-from-python-2-to-python-3>`_.
.. _database-migration:
Migrating from other databases to PostgreSQL
--------------------------------------------
If you are running Weblate on other dabatase than PostgreSQL, you should
consider migrating to PostgreSQL as Weblate performs best with it. The following
steps will guide you in migrating your data between the databases. Please
remember to stop both web and Celery servers prior to the migration, otherwise
you might end up with inconsistent data.
Creating a database in PostgreSQL
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It is usually a good idea to run Weblate in a separate database, and separate user account:
.. code-block:: sh
# If PostgreSQL was not installed before, set the main password
sudo -u postgres psql postgres -c "\password postgres"
# Create a database user called "weblate"
sudo -u postgres createuser -D -P weblate
# Create the database "weblate" owned by "weblate"
sudo -u postgres createdb -E UTF8 -O weblate weblate
Migrating using Django JSON dumps
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The simplest approach for migration is to utilize Django JSON dumps. This works well for smaller installations. On bigger sites you might want to use pgloader instead, see :ref:`pgloader-migration`.
1. Add PostgreSQL as additional database connection to the :file:`settings.py`:
.. code-block:: python
DATABASES = {
"default": {
# Database engine
"ENGINE": "django.db.backends.mysql",
# Database name
"NAME": "weblate",
# Database user
"USER": "weblate",
# Database password
"PASSWORD": "password",
# Set to empty string for localhost
"HOST": "database.example.com",
# Set to empty string for default
"PORT": "",
# Additional database options
"OPTIONS": {
# In case of using an older MySQL server, which has MyISAM as a default storage
# 'init_command': 'SET storage_engine=INNODB',
# Uncomment for MySQL older than 5.7:
# 'init_command': "SET sql_mode='STRICT_TRANS_TABLES'",
# If your server supports it, see the Unicode issues above
"charset": "utf8mb4",
# Change connection timeout in case you get MySQL gone away error:
"connect_timeout": 28800,
},
},
"postgresql": {
# Database engine
"ENGINE": "django.db.backends.postgresql",
# Database name
"NAME": "weblate",
# Database user
"USER": "weblate",
# Database password
"PASSWORD": "password",
# Set to empty string for localhost
"HOST": "database.example.com",
# Set to empty string for default
"PORT": "",
},
}
2. Run migrations and drop any data inserted into the tables:
.. code-block:: sh
weblate migrate --database=postgresql
weblate sqlflush --database=postgresql | weblate dbshell --database=postgresql
3. Dump legacy database and import to PostgreSQL
.. code-block:: sh
weblate dumpdata --all --output weblate.json
weblate loaddata weblate.json --database=postgresql
4. Adjust :setting:`django:DATABASES` to use just PostgreSQL database as default,
remove legacy connection.
Weblate should be now ready to run from the PostgreSQL database.
.. _pgloader-migration:
Migrating to PostgreSQL using pgloader
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The `pgloader`_ is a generic migration tool to migrate data to PostgreSQL. You can use it to migrate Weblate database.
1. Adjust your :file:`settings.py` to use PostgreSQL as a database.
2. Migrate the schema in the PostgreSQL database:
.. code-block:: sh
weblate migrate
weblate sqlflush | weblate dbshell
3. Run the pgloader to transfer the data. The following script can be used to migrate the database, but you might want to learn more about `pgloader`_ to understand what it does and tweak it to match your setup:
.. code-block:: postgresql
LOAD DATABASE
FROM mysql://weblate:password@localhost/weblate
INTO postgresql://weblate:password@localhost/weblate
WITH include no drop, truncate, create no tables, create no indexes, no foreign keys, disable triggers, reset sequences, data only
ALTER SCHEMA 'weblate' RENAME TO 'public'
;
.. _pgloader: https://pgloader.io/
.. _pootle-migration:
Migrating from Pootle
---------------------
As Weblate was originally written as replacement from Pootle, it is supported
to migrate user accounts from Pootle. You can dump the users from Pootle and
import them using :wladmin:`importusers`.
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