-
reivilibre authored
Add the `update_user_directory_from_worker` configuration option (superseding `update_user_directory`) to allow a generic worker to be designated as the worker to update the user directory. (#12654) Co-authored-by:
Shay <hillerys@element.io>
reivilibre authoredAdd the `update_user_directory_from_worker` configuration option (superseding `update_user_directory`) to allow a generic worker to be designated as the worker to update the user directory. (#12654) Co-authored-by:
Shay <hillerys@element.io>
Upgrading Synapse
Before upgrading check if any special steps are required to upgrade from the version you currently have installed to the current version of Synapse. The extra instructions that may be required are listed later in this document.
-
Check that your versions of Python and PostgreSQL are still supported.
Synapse follows upstream lifecycles for Python and PostgreSQL, and removes support for versions which are no longer maintained.
The website https://endoflife.date also offers convenient summaries.
-
If Synapse was installed using prebuilt packages, you will need to follow the normal process for upgrading those packages.
-
If Synapse was installed using pip then upgrade to the latest version by running:
pip install --upgrade matrix-synapse
-
If Synapse was installed from source, then:
-
Obtain the latest version of the source code. Git users can run
git pull
to do this. -
If you're running Synapse in a virtualenv, make sure to activate it before upgrading. For example, if Synapse is installed in a virtualenv in
~/synapse/env
then run:source ~/synapse/env/bin/activate pip install --upgrade .
Include any relevant extras between square brackets, e.g.
pip install --upgrade ".[postgres,oidc]"
. -
If you're using
poetry
to manage a Synapse installation, run:poetry install
Include any relevant extras with
--extras
, e.g.poetry install --extras postgres --extras oidc
. It's probably easiest to runpoetry install --extras all
. -
Restart Synapse:
synctl restart
-
To check whether your update was successful, you can check the running server version with:
# you may need to replace 'localhost:8008' if synapse is not configured
# to listen on port 8008.
curl http://localhost:8008/_synapse/admin/v1/server_version
Rolling back to older versions
Rolling back to previous releases can be difficult, due to database schema changes between releases. Where we have been able to test the rollback process, this will be noted below.
In general, you will need to undo any changes made during the upgrade process, for example:
-
pip:
source env/bin/activate # replace `1.3.0` accordingly: pip install matrix-synapse==1.3.0
-
Debian:
# replace `1.3.0` and `stretch` accordingly: wget https://packages.matrix.org/debian/pool/main/m/matrix-synapse-py3/matrix-synapse-py3_1.3.0+stretch1_amd64.deb dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
Upgrading to v1.59.0
Device name lookup over federation has been disabled by default
The names of user devices are no longer visible to users on other homeservers by default. Device IDs are unaffected, as these are necessary to facilitate end-to-end encryption.
To re-enable this functionality, set the
allow_device_name_lookup_over_federation
homeserver config option to true
.
synapse.app.appservice
and synapse.app.user_dir
worker application types
Deprecation of the The synapse.app.appservice
worker application type allowed you to configure a
single worker to use to notify application services of new events, as long
as this functionality was disabled on the main process with notify_appservices: False
.
Further, the synapse.app.user_dir
worker application type allowed you to configure
a single worker to be responsible for updating the user directory, as long as this
was disabled on the main process with update_user_directory: False
.
To unify Synapse's worker types, the synapse.app.appservice
worker application
type and the notify_appservices
configuration option have been deprecated.
The synapse.app.user_dir
worker application type and update_user_directory
configuration option have also been deprecated.
To get the same functionality as was provided by the deprecated options, it's now recommended that the synapse.app.generic_worker
worker application type is used and that the notify_appservices_from_worker
and/or
update_user_directory_from_worker
options are set to the name of a worker.
For the time being, the old options can be used alongside the new options to make it easier to transition between the two configurations, however please note that:
- the options must not contradict each other (otherwise Synapse won't start); and
- the
notify_appservices
andupdate_user_directory
options will be removed in a future release of Synapse.
Please see the Notifying Application Services and Updating the User Directory sections of the worker documentation for more information.
Upgrading to v1.58.0
Groups/communities feature has been disabled by default
The non-standard groups/communities feature in Synapse has been disabled by default and will be removed in Synapse v1.61.0.
Upgrading to v1.57.0
Changes to database schema for application services
Synapse v1.57.0 includes a change to the way transaction IDs are managed for application services. If your deployment uses a dedicated worker for application service traffic, it must be stopped when the database is upgraded (which normally happens when the main process is upgraded), to ensure the change is made safely without any risk of reusing transaction IDs.
Deployments which do not use separate worker processes can be upgraded as normal. Similarly, deployments where no application services are in use can be upgraded as normal.
Recovering from an incorrect upgrade
If the database schema is upgraded without stopping the worker responsible for AS traffic, then the following error may be given when attempting to start a Synapse worker or master process:
**********************************************************************************
Error during initialisation:
Postgres sequence 'application_services_txn_id_seq' is inconsistent with associated
table 'application_services_txns'. This can happen if Synapse has been downgraded and
then upgraded again, or due to a bad migration.
To fix this error, shut down Synapse (including any and all workers)
and run the following SQL:
SELECT setval('application_services_txn_id_seq', (
SELECT GREATEST(MAX(txn_id), 0) FROM application_services_txns
));
See docs/postgres.md for more information.
There may be more information in the logs.
**********************************************************************************
This error may also be seen if Synapse is downgraded to an earlier version, and then upgraded again to v1.57.0 or later.
In either case:
- Ensure that the worker responsible for AS traffic is stopped.
- Run the SQL command given in the error message via
psql
.
Synapse should then start correctly.
Upgrading to v1.56.0
Open registration without verification is now disabled by default
Synapse will refuse to start if registration is enabled without email, captcha, or token-based verification unless the new config
flag enable_registration_without_verification
is set to "true".
Groups/communities feature has been deprecated
The non-standard groups/communities feature in Synapse has been deprecated and will be disabled by default in Synapse v1.58.0.
You can test disabling it by adding the following to your homeserver configuration:
experimental_features:
groups_enabled: false
Change in behaviour for PostgreSQL databases with unsafe locale
Synapse now refuses to start when using PostgreSQL with non-C
values for COLLATE
and
CTYPE
unless the config flag allow_unsafe_locale
, found in the database section of
the configuration file, is set to true
. See the PostgreSQL documentation
for more information and instructions on how to fix a database with incorrect values.
Upgrading to v1.55.0
synctl
script has been moved
The synctl
script
has been made an
entry point
and no longer exists at the root of Synapse's source tree. If you wish to use
synctl
to manage your homeserver, you should invoke synctl
directly, e.g.
synctl start
instead of ./synctl start
or /path/to/synctl start
.
You will need to ensure synctl
is on your PATH
.
- This is automatically the case when using Debian packages or docker images provided by Matrix.org.
- When installing from a wheel, sdist, or PyPI, a
synctl
executable is added to your Python installation'sbin
. This should be on yourPATH
automatically, though you might need to activate a virtual environment depending on how you installed Synapse.
Compatibility dropped for Mjolnir 1.3.1 and earlier
Synapse v1.55.0 drops support for Mjolnir 1.3.1 and earlier. If you use the Mjolnir module to moderate your homeserver, please upgrade Mjolnir to version 1.3.2 or later before upgrading Synapse.
Upgrading to v1.54.0
Legacy structured logging configuration removal
This release removes support for the structured: true
logging configuration
which was deprecated in Synapse v1.23.0. If your logging configuration contains
structured: true
then it should be modified based on the
structured logging documentation.
Upgrading to v1.53.0
webclient
listeners and non-HTTP(S) web_client_location
Dropping support for Per the deprecation notice in Synapse v1.51.0, listeners of type webclient
are no longer supported and configuring them is a now a configuration error.
Configuring a non-HTTP(S) web_client_location
configuration is is now a
configuration error. Since the webclient
listener is no longer supported, this
setting only applies to the root path /
of Synapse's web server and no longer
the /_matrix/client/
path.
Stablisation of MSC3231
The unstable validity-check endpoint for the Registration Tokens feature has been stabilised and moved from:
/_matrix/client/unstable/org.matrix.msc3231/register/org.matrix.msc3231.login.registration_token/validity
to:
/_matrix/client/v1/register/m.login.registration_token/validity
Please update any relevant reverse proxy or firewall configurations appropriately.
Time-based cache expiry is now enabled by default
Formerly, entries in the cache were not evicted regardless of whether they were accessed after storing.
This behavior has now changed. By default entries in the cache are now evicted after 30m of not being accessed.
To change the default behavior, go to the caches
section of the config and change the expire_caches
and
cache_entry_ttl
flags as necessary. Please note that these flags replace the expiry_time
flag in the config.
The expiry_time
flag will still continue to work, but it has been deprecated and will be removed in the future.
capability
org.matrix.msc3283.*
Deprecation of The capabilities
of MSC3283 from the REST API /_matrix/client/r0/capabilities
becomes stable.
The old capabilities
-
org.matrix.msc3283.set_displayname
, -
org.matrix.msc3283.set_avatar_url
and org.matrix.msc3283.3pid_changes
are deprecated and scheduled to be removed in Synapse v1.54.0.
The new capabilities
-
m.set_displayname
, -
m.set_avatar_url
and m.3pid_changes
are now active by default.
user_may_create_room_with_invites
Removal of As announced with the release of Synapse 1.47.0,
the deprecated user_may_create_room_with_invites
module callback has been removed.
Modules relying on it can instead implement user_may_invite
and use the get_room_state
module API to infer whether the invite is happening while creating a room (see this function
as an example). Alternately, modules can also implement on_create_room
.
Upgrading to v1.52.0
Twisted security release
Note that Twisted 22.1.0
has recently been released, which fixes a security issue
within the Twisted library. We do not believe Synapse is affected by this vulnerability,
though we advise server administrators who installed Synapse via pip to upgrade Twisted
with pip install --upgrade Twisted treq
as a matter of good practice. The Docker image
matrixdotorg/synapse
and the Debian packages from packages.matrix.org
are using the
updated library.
Upgrading to v1.51.0
webclient
listeners and non-HTTP(S) web_client_location
Deprecation of Listeners of type webclient
are deprecated and scheduled to be removed in
Synapse v1.53.0.
Similarly, a non-HTTP(S) web_client_location
configuration is deprecated and
will become a configuration error in Synapse v1.53.0.
Upgrading to v1.50.0
Dropping support for old Python and Postgres versions
In line with our deprecation policy, we've dropped support for Python 3.6 and PostgreSQL 9.6, as they are no longer supported upstream.
This release of Synapse requires Python 3.7+ and PostgreSQL 10+.
Upgrading to v1.47.0
Removal of old Room Admin API
The following admin APIs were deprecated in Synapse 1.34 (released on 2021-05-17) and have now been removed:
POST /_synapse/admin/v1/<room_id>/delete
Any scripts still using the above APIs should be converted to use the Delete Room API.
user_may_create_room_with_invites
module callback
Deprecation of the The user_may_create_room_with_invites
is deprecated and will be removed in a future
version of Synapse. Modules implementing this callback can instead implement
user_may_invite
and use the get_room_state
module API method to infer whether the invite is happening in the context of creating a
room.
We plan to remove this callback in January 2022.
Upgrading to v1.45.0
Changes required to media storage provider modules when reading from the Synapse configuration object
Media storage provider modules that read from the Synapse configuration object (i.e. that
read the value of hs.config.[...]
) now need to specify the configuration section they're
reading from. This means that if a module reads the value of e.g. hs.config.media_store_path
,
it needs to replace it with hs.config.media.media_store_path
.
Upgrading to v1.44.0
The URL preview cache is no longer mirrored to storage providers
The url_cache/
and url_cache_thumbnails/
directories in the media store are
no longer mirrored to storage providers. These two directories can be safely
deleted from any configured storage providers to reclaim space.
Upgrading to v1.43.0
The spaces summary APIs can now be handled by workers
The available worker applications documentation
has been updated to reflect that calls to the /spaces
, /hierarchy
, and
/summary
endpoints can now be routed to workers for both client API and
federation requests.
Upgrading to v1.42.0
Removal of old Room Admin API
The following admin APIs were deprecated in Synapse 1.25 (released on 2021-01-13) and have now been removed:
POST /_synapse/admin/v1/purge_room
POST /_synapse/admin/v1/shutdown_room/<room_id>
Any scripts still using the above APIs should be converted to use the Delete Room API.
User-interactive authentication fallback templates can now display errors
This may affect you if you make use of custom HTML templates for the reCAPTCHA or terms fallback pages.
The template is now provided an error
variable if the authentication
process failed. See the default templates linked above for an example.
Removal of out-of-date email pushers
Users will stop receiving message updates via email for addresses that were once, but not still, linked to their account.
Upgrading to v1.41.0
Add support for routing outbound HTTP requests via a proxy for federation
Since Synapse 1.6.0 (2019-11-26) you can set a proxy for outbound HTTP requests via http_proxy/https_proxy environment variables. This proxy was set for:
- push
- url previews
- phone-home stats
- recaptcha validation
- CAS auth validation
- OpenID Connect
- Federation (checking public key revocation)
In this version we have added support for outbound requests for:
- Outbound federation
- Downloading remote media
- Fetching public keys of other servers
These requests use the same proxy configuration. If you have a proxy configuration we
recommend to verify the configuration. It may be necessary to adjust the no_proxy
environment variable.
See using a forward proxy with Synapse documentation for details.
template_dir
Deprecation of The template_dir
settings in the sso
, account_validity
and email
sections of the
configuration file are now deprecated. Server admins should use the new
templates.custom_template_directory
setting in the configuration file and use one single
custom template directory for all aforementioned features. Template file names remain
unchanged. See the related documentation
for more information and examples.
We plan to remove support for these settings in October 2021.
/_synapse/admin/v1/users/{userId}/media
must be handled by media workers
The media repository worker documentation
has been updated to reflect that calls to /_synapse/admin/v1/users/{userId}/media
must now be handled by media repository workers. This is due to the new DELETE
method
of this endpoint modifying the media store.
Upgrading to v1.39.0
Deprecation of the current third-party rules module interface
The current third-party rules module interface is deprecated in favour of the new generic modules system introduced in Synapse v1.37.0. Authors of third-party rules modules can refer to this documentation to update their modules. Synapse administrators can refer to this documentation to update their configuration once the modules they are using have been updated.
We plan to remove support for the current third-party rules interface in September 2021.
Upgrading to v1.38.0
events
table on Postgres databases
Re-indexing of This release includes a database schema update which requires re-indexing one of
the larger tables in the database, events
. This could result in increased
disk I/O for several hours or days after upgrading while the migration
completes. Furthermore, because we have to keep the old indexes until the new
indexes are ready, it could result in a significant, temporary, increase in
disk space.
To get a rough idea of the disk space required, check the current size of one
of the indexes. For example, from a psql
shell, run the following sql:
SELECT pg_size_pretty(pg_relation_size('events_order_room'));
We need to rebuild four indexes, so you will need to multiply this result by four to give an estimate of the disk space required. For example, on one particular server:
synapse=# select pg_size_pretty(pg_relation_size('events_order_room'));
pg_size_pretty
----------------
288 MB
(1 row)
On this server, it would be wise to ensure that at least 1152MB are free.
The additional disk space will be freed once the migration completes.
SQLite databases are unaffected by this change.
Upgrading to v1.37.0
Deprecation of the current spam checker interface
The current spam checker interface is deprecated in favour of a new generic modules system. Authors of spam checker modules can refer to [this documentation](modules/porting_legacy_module.md to update their modules. Synapse administrators can refer to this documentation to update their configuration once the modules they are using have been updated.
We plan to remove support for the current spam checker interface in August 2021.
More module interfaces will be ported over to this new generic system in future versions of Synapse.
Upgrading to v1.34.0
room_invite_state_types
configuration setting
The room_invite_state_types
configuration setting has been deprecated
and replaced with room_prejoin_state
. See the sample configuration
file.
If you have set room_invite_state_types
to the default value you
should simply remove it from your configuration file. The default value
used to be:
room_invite_state_types:
- "m.room.join_rules"
- "m.room.canonical_alias"
- "m.room.avatar"
- "m.room.encryption"
- "m.room.name"
If you have customised this value, you should remove
room_invite_state_types
and configure room_prejoin_state
instead.
Upgrading to v1.33.0
Account Validity HTML templates can now display a user's expiration date
This may affect you if you have enabled the account validity feature,
and have made use of a custom HTML template specified by the
account_validity.template_dir
or
account_validity.account_renewed_html_path
Synapse config options.
The template can now accept an expiration_ts
variable, which
represents the unix timestamp in milliseconds for the future date of
which their account has been renewed until. See the default
template
for an example of usage.
ALso note that a new HTML template, account_previously_renewed.html
,
has been added. This is is shown to users when they attempt to renew
their account with a valid renewal token that has already been used
before. The default template contents can been found
here,
and can also accept an expiration_ts
variable. This template replaces
the error message users would previously see upon attempting to use a
valid renewal token more than once.
Upgrading to v1.32.0
Regression causing connected Prometheus instances to become overwhelmed
This release introduces a regression that can overwhelm connected Prometheus instances. This issue is not present in Synapse v1.32.0rc1.
If you have been affected, please downgrade to 1.31.0. You then may need to remove excess writeahead logs in order for Prometheus to recover. Instructions for doing so are provided here.
Dropping support for old Python, Postgres and SQLite versions
In line with our deprecation policy, we've dropped support for Python 3.5 and PostgreSQL 9.5, as they are no longer supported upstream.
This release of Synapse requires Python 3.6+ and PostgresSQL 9.6+ or SQLite 3.22+.
Removal of old List Accounts Admin API
The deprecated v1 "list accounts" admin API
(GET /_synapse/admin/v1/users/<user_id>
) has been removed in this
version.
The v2 list accounts API
has been available since Synapse 1.7.0 (2019-12-13), and is accessible
under GET /_synapse/admin/v2/users
.
The deprecation of the old endpoint was announced with Synapse 1.28.0 (released on 2021-02-25).
m.login.application_service
when registering users
Application Services must use type In compliance with the Application Service
spec,
Application Services are now required to use the
m.login.application_service
type when registering users via the
/_matrix/client/r0/register
endpoint. This behaviour was deprecated in
Synapse v1.30.0.
Please ensure your Application Services are up to date.
Upgrading to v1.29.0
Requirement for X-Forwarded-Proto header
When using Synapse with a reverse proxy (in particular, when using the
x_forwarded
option on an HTTP listener), Synapse now
expects to receive an X-Forwarded-Proto
header on incoming
HTTP requests. If it is not set, Synapse will log a warning on each
received request.
To avoid the warning, administrators using a reverse proxy should ensure
that the reverse proxy sets X-Forwarded-Proto
header to
https
or http
to indicate the protocol used
by the client.
Synapse also requires the Host
header to be preserved.
See the reverse proxy documentation, where the example configurations have been updated to show how to set these headers.
(Users of Caddy are unaffected, since we
believe it sets X-Forwarded-Proto
by default.)
Upgrading to v1.27.0
Changes to callback URI for OAuth2 / OpenID Connect and SAML2
This version changes the URI used for callbacks from OAuth2 and SAML2 identity providers:
-
If your server is configured for single sign-on via an OpenID Connect or OAuth2 identity provider, you will need to add
[synapse public baseurl]/_synapse/client/oidc/callback
to the list of permitted "redirect URIs" at the identity provider.See the OpenID docs for more information on setting up OpenID Connect.
-
If your server is configured for single sign-on via a SAML2 identity provider, you will need to add
[synapse public baseurl]/_synapse/client/saml2/authn_response
as a permitted "ACS location" (also known as "allowed callback URLs") at the identity provider.The "Issuer" in the "AuthnRequest" to the SAML2 identity provider is also updated to
[synapse public baseurl]/_synapse/client/saml2/metadata.xml
. If your SAML2 identity provider uses this property to validate or otherwise identify Synapse, its configuration will need to be updated to use the new URL. Alternatively you could create a new, separate "EntityDescriptor" in your SAML2 identity provider with the new URLs and leave the URLs in the existing "EntityDescriptor" as they were.
Changes to HTML templates
The HTML templates for SSO and email notifications now have Jinja2's
autoescape
enabled for files ending in .html
, .htm
, and .xml
. If you have
customised these templates and see issues when viewing them you might
need to update them. It is expected that most configurations will need
no changes.
If you have customised the templates names for these templates, it is
recommended to verify they end in .html
to ensure autoescape is
enabled.
The above applies to the following templates:
add_threepid.html
add_threepid_failure.html
add_threepid_success.html
notice_expiry.html
notice_expiry.html
-
notif_mail.html
(which, by default, includesroom.html
andnotif.html
) password_reset.html
password_reset_confirmation.html
password_reset_failure.html
password_reset_success.html
registration.html
registration_failure.html
registration_success.html
sso_account_deactivated.html
sso_auth_bad_user.html
sso_auth_confirm.html
sso_auth_success.html
sso_error.html
sso_login_idp_picker.html
sso_redirect_confirm.html
Upgrading to v1.26.0
Rolling back to v1.25.0 after a failed upgrade
v1.26.0 includes a lot of large changes. If something problematic occurs, you may want to roll-back to a previous version of Synapse. Because v1.26.0 also includes a new database schema version, reverting that version is also required alongside the generic rollback instructions mentioned above. In short, to roll back to v1.25.0 you need to:
-
Stop the server
-
Decrease the schema version in the database:
UPDATE schema_version SET version = 58;
-
Delete the ignored users & chain cover data:
DROP TABLE IF EXISTS ignored_users; UPDATE rooms SET has_auth_chain_index = false;
For PostgreSQL run:
TRUNCATE event_auth_chain_links; TRUNCATE event_auth_chains;
For SQLite run:
DELETE FROM event_auth_chain_links; DELETE FROM event_auth_chains;
-
Mark the deltas as not run (so they will re-run on upgrade).
DELETE FROM applied_schema_deltas WHERE version = 59 AND file = "59/01ignored_user.py"; DELETE FROM applied_schema_deltas WHERE version = 59 AND file = "59/06chain_cover_index.sql";
-
Downgrade Synapse by following the instructions for your installation method in the "Rolling back to older versions" section above.
Upgrading to v1.25.0
Last release supporting Python 3.5
This is the last release of Synapse which guarantees support with Python 3.5, which passed its upstream End of Life date several months ago.
We will attempt to maintain support through March 2021, but without guarantees.
In the future, Synapse will follow upstream schedules for ending support of older versions of Python and PostgreSQL. Please upgrade to at least Python 3.6 and PostgreSQL 9.6 as soon as possible.
Blacklisting IP ranges
Synapse v1.25.0 includes new settings, ip_range_blacklist
and
ip_range_whitelist
, for controlling outgoing requests from Synapse for
federation, identity servers, push, and for checking key validity for
third-party invite events. The previous setting,
federation_ip_range_blacklist
, is deprecated. The new
ip_range_blacklist
defaults to private IP ranges if it is not defined.
If you have never customised federation_ip_range_blacklist
it is
recommended that you remove that setting.
If you have customised federation_ip_range_blacklist
you should update
the setting name to ip_range_blacklist
.
If you have a custom push server that is reached via private IP space
you may need to customise ip_range_blacklist
or ip_range_whitelist
.
Upgrading to v1.24.0
Custom OpenID Connect mapping provider breaking change
This release allows the OpenID Connect mapping provider to perform normalisation of the localpart of the Matrix ID. This allows for the mapping provider to specify different algorithms, instead of the default way.
If your Synapse configuration uses a custom mapping provider
(oidc_config.user_mapping_provider.module
is specified and
not equal to
synapse.handlers.oidc_handler.JinjaOidcMappingProvider
)
then you must ensure that map_user_attributes
of the
mapping provider performs some normalisation of the
localpart
returned. To match previous behaviour you can
use the map_username_to_mxid_localpart
function provided
by Synapse. An example is shown below:
from synapse.types import map_username_to_mxid_localpart
class MyMappingProvider:
def map_user_attributes(self, userinfo, token):
# ... your custom logic ...
sso_user_id = ...
localpart = map_username_to_mxid_localpart(sso_user_id)
return {"localpart": localpart}
Removal historical Synapse Admin API
Historically, the Synapse Admin API has been accessible under:
/_matrix/client/api/v1/admin
/_matrix/client/unstable/admin
/_matrix/client/r0/admin
/_synapse/admin/v1
The endpoints with /_matrix/client/*
prefixes have been removed as of
v1.24.0. The Admin API is now only accessible under:
/_synapse/admin/v1
The only exception is the /admin/whois
endpoint, which is
also available via the client-server
API.
The deprecation of the old endpoints was announced with Synapse 1.20.0 (released on 2020-09-22) and makes it easier for homeserver admins to lock down external access to the Admin API endpoints.
Upgrading to v1.23.0
Structured logging configuration breaking changes
This release deprecates use of the structured: true
logging
configuration for structured logging. If your logging configuration
contains structured: true
then it should be modified based on the
structured logging documentation.
The structured
and drains
logging options are now deprecated and
should be replaced by standard logging configuration of handlers
and
formatters
.
A future will release of Synapse will make using structured: true
an
error.
Upgrading to v1.22.0
ThirdPartyEventRules breaking changes
This release introduces a backwards-incompatible change to modules
making use of ThirdPartyEventRules
in Synapse. If you make use of a
module defined under the third_party_event_rules
config option, please
make sure it is updated to handle the below change:
The http_client
argument is no longer passed to modules as they are
initialised. Instead, modules are expected to make use of the
http_client
property on the ModuleApi
class. Modules are now passed
a module_api
argument during initialisation, which is an instance of
ModuleApi
. ModuleApi
instances have a http_client
property which
acts the same as the http_client
argument previously passed to
ThirdPartyEventRules
modules.
Upgrading to v1.21.0
/_synapse/client
through your reverse proxy
Forwarding The reverse proxy documentation
has been updated to include reverse proxy directives for
/_synapse/client/*
endpoints. As the user password reset flow now uses
endpoints under this prefix, you must update your reverse proxy
configurations for user password reset to work.
- Additionally, note that the Synapse worker documentation has been updated to
-
state that the
/_synapse/client/password_reset/email/submit_token
endpoint can be handled
by all workers. If you make use of Synapse's worker feature, please update your reverse proxy configuration to reflect this change.
New HTML templates
A new HTML template,
password_reset_confirmation.html,
has been added to the synapse/res/templates
directory. If you are
using a custom template directory, you may want to copy the template
over and modify it.
Note that as of v1.20.0, templates do not need to be included in custom template directories for Synapse to start. The default templates will be used if a custom template cannot be found.
This page will appear to the user after clicking a password reset link that has been emailed to them.
To complete password reset, the page must include a way to make a
POST
request to
/_synapse/client/password_reset/{medium}/submit_token
with the query
parameters from the original link, presented as a URL-encoded form. See
the file itself for more details.
Updated Single Sign-on HTML Templates
The saml_error.html
template was removed from Synapse and replaced
with the sso_error.html
template. If your Synapse is configured to use
SAML and a custom sso_redirect_confirm_template_dir
configuration then
any customisations of the saml_error.html
template will need to be
merged into the sso_error.html
template. These templates are similar,
but the parameters are slightly different:
- The
msg
parameter should be renamed toerror_description
. - There is no longer a
code
parameter for the response code. - A string
error
parameter is available that includes a short hint of why a user is seeing the error page.
Upgrading to v1.18.0
-py3
suffix will be removed in future versions
Docker From 10th August 2020, we will no longer publish Docker images with the
-py3
tag suffix. The images tagged with the
-py3
suffix have been identical to the non-suffixed tags
since release 0.99.0, and the suffix is obsolete.
On 10th August, we will remove the latest-py3
tag.
Existing per-release tags (such as v1.18.0-py3
will not
be removed, but no new -py3
tags will be added.
Scripts relying on the -py3
suffix will need to be
updated.
Redis replication is now recommended in lieu of TCP replication
When setting up worker processes, we now recommend the use of a Redis server for replication. The old direct TCP connection method is deprecated and will be removed in a future release. See workers for more details.
Upgrading to v1.14.0
This version includes a database update which is run as part of the upgrade, and which may take a couple of minutes in the case of a large server. Synapse will not respond to HTTP requests while this update is taking place.
Upgrading to v1.13.0
Incorrect database migration in old synapse versions
A bug was introduced in Synapse 1.4.0 which could cause the room directory to be incomplete or empty if Synapse was upgraded directly from v1.2.1 or earlier, to versions between v1.4.0 and v1.12.x.
- This will not be a problem for Synapse installations which were:
-
- created at v1.4.0 or later,
- upgraded via v1.3.x, or
- upgraded straight from v1.2.1 or earlier to v1.13.0 or later.
If completeness of the room directory is a concern, installations which are affected can be repaired as follows:
-
Run the following sql from a
psql
orsqlite3
console:INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES ('populate_stats_process_rooms', '{}', 'current_state_events_membership'); INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES ('populate_stats_process_users', '{}', 'populate_stats_process_rooms');
-
Restart synapse.
New Single Sign-on HTML Templates
New templates (sso_auth_confirm.html
, sso_auth_success.html
, and
sso_account_deactivated.html
) were added to Synapse. If your Synapse
is configured to use SSO and a custom
sso_redirect_confirm_template_dir
configuration then these templates
will need to be copied from
synapse/res/templates into that directory.
Synapse SSO Plugins Method Deprecation
Plugins using the complete_sso_login
method of
synapse.module_api.ModuleApi
should update to using the async/await
version complete_sso_login_async
which includes additional checks. The
non-async version is considered deprecated.
Rolling back to v1.12.4 after a failed upgrade
v1.13.0 includes a lot of large changes. If something problematic occurs, you may want to roll-back to a previous version of Synapse. Because v1.13.0 also includes a new database schema version, reverting that version is also required alongside the generic rollback instructions mentioned above. In short, to roll back to v1.12.4 you need to:
-
Stop the server
-
Decrease the schema version in the database:
UPDATE schema_version SET version = 57;
-
Downgrade Synapse by following the instructions for your installation method in the "Rolling back to older versions" section above.
Upgrading to v1.12.0
This version includes a database update which is run as part of the upgrade, and which may take some time (several hours in the case of a large server). Synapse will not respond to HTTP requests while this update is taking place.
This is only likely to be a problem in the case of a server which is participating in many rooms.
-
As with all upgrades, it is recommended that you have a recent backup of your database which can be used for recovery in the event of any problems.
-
As an initial check to see if you will be affected, you can try running the following query from the
psql
orsqlite3
console. It is safe to run it while Synapse is still running.SELECT MAX(q.v) FROM ( SELECT ( SELECT ej.json AS v FROM state_events se INNER JOIN event_json ej USING (event_id) WHERE se.room_id=rooms.room_id AND se.type='m.room.create' AND se.state_key='' LIMIT 1 ) FROM rooms WHERE rooms.room_version IS NULL ) q;
This query will take about the same amount of time as the upgrade process: ie, if it takes 5 minutes, then it is likely that Synapse will be unresponsive for 5 minutes during the upgrade.
If you consider an outage of this duration to be acceptable, no further action is necessary and you can simply start Synapse 1.12.0.
If you would prefer to reduce the downtime, continue with the steps below.
-
The easiest workaround for this issue is to manually create a new index before upgrading. On PostgreSQL, his can be done as follows:
CREATE INDEX CONCURRENTLY tmp_upgrade_1_12_0_index ON state_events(room_id) WHERE type = 'm.room.create';
The above query may take some time, but is also safe to run while Synapse is running.
We assume that no SQLite users have databases large enough to be affected. If you are affected, you can run a similar query, omitting the
CONCURRENTLY
keyword. Note however that this operation may in itself cause Synapse to stop running for some time. Synapse admins are reminded that SQLite is not recommended for use outside a test environment. -
Once the index has been created, the
SELECT
query in step 1 above should complete quickly. It is therefore safe to upgrade to Synapse 1.12.0. -
Once Synapse 1.12.0 has successfully started and is responding to HTTP requests, the temporary index can be removed:
DROP INDEX tmp_upgrade_1_12_0_index;
Upgrading to v1.10.0
Synapse will now log a warning on start up if used with a PostgreSQL database that has a non-recommended locale set.
See Postgres for details.
Upgrading to v1.8.0
Specifying a log_file
config option will now cause Synapse to refuse
to start, and should be replaced by with the log_config
option.
Support for the log_file
option was removed in v1.3.0 and has since
had no effect.
Upgrading to v1.7.0
In an attempt to configure Synapse in a privacy preserving way, the
default behaviours of allow_public_rooms_without_auth
and
allow_public_rooms_over_federation
have been inverted. This means that
by default, only authenticated users querying the Client/Server API will
be able to query the room directory, and relatedly that the server will
not share room directory information with other servers over federation.
If your installation does not explicitly set these settings one way or
the other and you want either setting to be true
then it will
necessary to update your homeserver configuration file accordingly.
For more details on the surrounding context see our explainer.
Upgrading to v1.5.0
This release includes a database migration which may take several
minutes to complete if there are a large number (more than a million or
so) of entries in the devices
table. This is only likely to a be a
problem on very large installations.
Upgrading to v1.4.0
New custom templates
If you have configured a custom template directory with the
email.template_dir
option, be aware that there are new templates
regarding registration and threepid management (see below) that must be
included.
-
registration.html
andregistration.txt
-
registration_success.html
andregistration_failure.html
-
add_threepid.html
andadd_threepid.txt
-
add_threepid_failure.html
andadd_threepid_success.html
Synapse will expect these files to exist inside the configured template directory, and will fail to start if they are absent. To view the default templates, see synapse/res/templates.
3pid verification changes
Note: As of this release, users will be unable to add phone numbers or email addresses to their accounts, without changes to the Synapse configuration. This includes adding an email address during registration.
It is possible for a user to associate an email address or phone number with their account, for a number of reasons:
- for use when logging in, as an alternative to the user id.
- in the case of email, as an alternative contact to help with account recovery.
- in the case of email, to receive notifications of missed messages.
Before an email address or phone number can be added to a user's account, or before such an address is used to carry out a password-reset, Synapse must confirm the operation with the owner of the email address or phone number. It does this by sending an email or text giving the user a link or token to confirm receipt. This process is known as '3pid verification'. ('3pid', or 'threepid', stands for third-party identifier, and we use it to refer to external identifiers such as email addresses and phone numbers.)
Previous versions of Synapse delegated the task of 3pid verification to
an identity server by default. In most cases this server is vector.im
or matrix.org
.
In Synapse 1.4.0, for security and privacy reasons, the homeserver will no longer delegate this task to an identity server by default. Instead, the server administrator will need to explicitly decide how they would like the verification messages to be sent.
In the medium term, the vector.im
and matrix.org
identity servers
will disable support for delegated 3pid verification entirely. However,
in order to ease the transition, they will retain the capability for a
limited period. Delegated email verification will be disabled on Monday
2nd December 2019 (giving roughly 2 months notice). Disabling delegated
SMS verification will follow some time after that once SMS verification
support lands in Synapse.
Once delegated 3pid verification support has been disabled in the
vector.im
and matrix.org
identity servers, all Synapse versions that
depend on those instances will be unable to verify email and phone
numbers through them. There are no imminent plans to remove delegated
3pid verification from Sydent generally. (Sydent is the identity server
project that backs the vector.im
and matrix.org
instances).
Following upgrade, to continue verifying email (e.g. as part of the registration process), admins can either:-
- Configure Synapse to use an email server.
- Run or choose an identity server which allows delegated email verification and delegate to it.
Configure SMTP in Synapse
To configure an SMTP server for Synapse, modify the configuration
section headed email
, and be sure to have at least the
smtp_host, smtp_port
and notif_from
fields filled out.
You may also need to set smtp_user
, smtp_pass
, and
require_transport_security
.
See the sample configuration file for more details on these settings.
Delegate email to an identity server
Some admins will wish to continue using email verification as part of the registration process, but will not immediately have an appropriate SMTP server at hand.
To this end, we will continue to support email verification delegation
via the vector.im
and matrix.org
identity servers for two months.
Support for delegated email verification will be disabled on Monday 2nd
December.
The account_threepid_delegates
dictionary defines whether the
homeserver should delegate an external server (typically an identity
server) to handle
sending confirmation messages via email and SMS.
So to delegate email verification, in homeserver.yaml
, set
account_threepid_delegates.email
to the base URL of an identity
server. For example:
account_threepid_delegates:
email: https://example.com # Delegate email sending to example.com
Note that account_threepid_delegates.email
replaces the deprecated
email.trust_identity_server_for_password_resets
: if
email.trust_identity_server_for_password_resets
is set to true
, and
account_threepid_delegates.email
is not set, then the first entry in
trusted_third_party_id_servers
will be used as the
account_threepid_delegate
for email. This is to ensure compatibility
with existing Synapse installs that set up external server handling for
these tasks before v1.4.0. If
email.trust_identity_server_for_password_resets
is true
and no
trusted identity server domains are configured, Synapse will report an
error and refuse to start.
If email.trust_identity_server_for_password_resets
is false
or
absent and no email
delegate is configured in
account_threepid_delegates
, then Synapse will send email verification
messages itself, using the configured SMTP server (see above). that
type.
Phone numbers
Synapse does not support phone-number verification itself, so the only
way to maintain the ability for users to add phone numbers to their
accounts will be by continuing to delegate phone number verification to
the matrix.org
and vector.im
identity servers (or another identity
server that supports SMS sending).
The account_threepid_delegates
dictionary defines whether the
homeserver should delegate an external server (typically an identity
server) to handle
sending confirmation messages via email and SMS.
So to delegate phone number verification, in homeserver.yaml
, set
account_threepid_delegates.msisdn
to the base URL of an identity
server. For example:
account_threepid_delegates:
msisdn: https://example.com # Delegate sms sending to example.com