Mattermost Cloud Changelog¶

User Interface (UI)¶

• In the at-mention autocomplete, the user’s nickname is no longer shown when (you) is present.

• Updated the help text on the Add Users channel modal.

Administration¶

• The platform binary file has been removed from the distribution files. It should be replaced by the Mattermost binary file if it’s being used in scripts.

• Improved memory performance for large image uploads, particularly PNGs with transparency.

User Interface (UI)¶

• Removed status icon from the profile image in the center channel and the right-hand side view.

• Added a performance improvement to the emoji picker overlay to improve typing performance.

• Added performance improvements when receiving new posts.

Administration¶

• Team-restricted direct channel creation is now also applied to the backend. Previously, this was restricted to the frontend.

• Refactored the config storing logic to improve its robustness and performance.

• Added a visual grouping of related settings under AD/LDAP in the System Console.

User Interface (UI)¶

• Added Hungarian (Beta) language.

• A search tip is now shown when scrolling back in a channel.

• Improved the error text in the Edit Channel Header modal.

• Added the ability to clear a custom status when only an emoji and no text is set.

• Redesigned message notification emails.

Administration¶

• The default value of the Support Email (previously _feedback@mattermost.com_) has been removed. Admin Advisor will now prompt System Admins about missing configuration for the Support Email. This value is required, and it ensures Mattermost account requests are sent to the correct team for resolution.

• The Marketplace button in the Main Menu is now displayed if the user has the sysconsole_write_plugins permission.

• Added new feature discoveries in the System Console, including Data Retention Policy and OpenID Connect.

• Added basic intra-cluster communication support for plugins.

• Improved error messages for /header and /purpose commands.

User Interface (UI)¶

• If message autoresponder is set, only one message is now sent to a given user irrespective of how many Direct Message messages the user receives.

• Added status icons on Add members to channel and Add members to team lists.

• Added a keyboard shortcut to focus on the Search bar and search in the current channel.

Administration¶

• Gossip clustering mode is now in General Availability and is no longer available as an option. All cluster traffic will always use the gossip protocol. The config setting UseExperimentalGossip has no effect and has only been kept for compatibility purposes. The setting to use gossip has been removed from the System Console. Note: For High Availability upgrades, all nodes in the cluster must use a single protocol. If an existing system is not currently using gossip, one node in a cluster can’t be upgraded while other nodes in the cluster use an older version. Customers must either use gossip for their High Availability upgrade, or customers must shut down all nodes, perform the upgrade, and then bring all nodes back up.

• TCP_NO_DELAY is disabled for Websocket connections to allow for higher throughput.

• Compliance Monitoring CSV files are no longer limited to 30,000 rows.

Apps Framework (Developer Preview)¶

• The Mattermost Apps Framework introduces a new way to integrate with external tools to allow developers to create interactive Apps in Mattermost using any development language they’re comfortable with. These Apps work seamlessly across mobile and desktop clients. This is a developer preview that is not yet intended for production instances of Mattermost. The Apps Framework will be available for self-managed customers in Mattermost v5.35 once the Apps Framework Plugin is loaded on an instance. Until then, developers can use the cloud branch to get a local test environment running. The launch for the Developer Preview of the Apps Framework is scheduled for April 29th, 2021. Learn more: https://developers.mattermost.com/integrate/apps/.

Search Results Are Returned on File Search¶

• Searching in Mattermost now finds both relevant messages and files in your team’s conversation history. Search will return results for attachments that match the file name or contain matching text content within supported document types. Learn more. To be available for mobile apps in a later release.

Granular Access to System Console Pages¶

• Migrated the following System Console sections to their respective sub-section permissions: Experimental, About, Reporting, Environment, Site Configuration, Authentication, Integrations, and Compliance.

Shared Channels (Experimental)¶

• Experimental support was added for sharing channels between Mattermost clusters. This feature is disabled by default.

User Interface (UI)¶

• Added support to collapse in-line images over 100px in height.

• Implemented maximum length validation on the status modal for custom statuses.

• Synchronized collapsed channel sidebar categories on the server.

• Empty state is no longer off-centered in the Channel Switcher.

• Ephemeral message created from call response markdown field is now posted by bot.

• Added improvements and fixes for the custom status feature. For example, fixed an issue where recently selected statuses were missing from the Set a Status confirmation screen, and updated the Mobile Push Notifications text in Account Settings to refer to user availability instead of online status.

• Moved the user status in the channel switcher to overlap with user avatars, and added URL ‘Slug’ information to channel names in the channel switcher.

Administration¶

• Paused admin advisor notifications from triggering.

• Added a command line document extraction command that allows indexing documents by content.

User Interface (UI)¶

• Added a string field to configuration for restricted domains with the key RestrictLinkPreviews and added a UI field for restricted domains under System Console > Site Configuration > Posts. Also expanded the logic that determines whether a post has a preview or not.

• Added an unread badge to the Main Menu icon and the Plugin Marketplace menu that displays until a System Admin visits the Plugin Marketplace for the first time.

• Removed Beta tags from Swedish and Bulgarian languages.

• Added profile pictures to the Direct Messages channel list.

• Added channel icons for email notifications as part of email notification redesigns.

• Direct Messages More… modal is now sorted by recent conversations when the modal is opened.

• Removed legacy Open-Sans fonts and upgraded Open-Sans to v18.

Administration¶

• Removed the utility function model.GeneratePassword() for security reasons. An improved version is now being used internally to generate passwords for bulk-imported users.

• Only the System Admin is allowed to have the ability to assign system roles.

• Two new gauge metrics were added: mattermost_db_replica_lag_abs and mattermost_db_replica_lag_time, both containing a label of “node”, signifying which database host is the metric from.

  • These metrics signify the replica lag in absolute terms and in the time dimension capturing the whole picture of replica lag. To use these metrics, a separate config section ReplicaLagSettings was added under SqlSettings. This is an array of maps which contain three keys: DataSource, QueryAbsoluteLag, and QueryTimeLag. Each map entry is for a single replica instance. DataSource contains the database credentials to connect to the replica instance. QueryAbsoluteLag is a plain SQL query that must return a single row of which the first column must be the node value of the Prometheus metric, and the second column must be the value of the lag. QueryTimeLag is the same as above, but used to measure the time lag.

  • As an example, for AWS Aurora instances, the QueryAbsoluteLag can be: select server_id highest_lsn_rcvd-durable_lsn as bindiff from aurora_global_db_instance_status() where server_id=<> and QueryTimeLag can be: select server_id, visibility_lag_in_msec aurora_global_db_instance_status() where server_id=<>. For MySQL Group Replication, the absolute lag can be measured from the number of pending transactions in the applier queue: select member_id, count_transactions_remote_in_applier_queue FROM performance_schema.replication_group_member_stats where member_id=<>. Overall, what query to choose is left to the administrator, and depending on the database and need, an appropriate query can be chosen.

User Interface (UI)¶

• Added support for automatic right-to-left (RTL) detection in browsers.

• Updated the font size for the Add People channel modal.

• Online status is now shown in the channel switcher.

• Improved the design and layout of email notifications for password resets, member invites, member welcome, and verifications.

Administration¶

• Added mmctl commands to create, list, download, and delete export files.

• Profiling the Mattermost server with pprof is now available for Team Edition.

• Added attributes to split.io feature flags.

Custom Statuses¶

• Custom Statuses allow users to add a descriptive status message and emoji that’s visible to everyone. Users now gain the flexibility to express their current status in any way they prefer. Mobile support is coming in a future release.

User Interface (UI)¶

• System Admins are now prompted when joining a private channel via a permalink.

• Added support for adding in-product notices for external dependency deprecation details.

• Improved the timezone selector component.

• Introduced a new theme variable for the team sidebar.

Administration¶

• Added schema migrations phase 0 (Teams, TeamMembers).

• Removed any references to SqlLite3 from the code.

• Bleve updates are now logged in the config only when there is an actual change in the BleveSettings instead of on every config update.

Support Packet Generation¶

• Allows a System Admin to download a support packet which provides helpful information to our internal support team.

User Interface (UI)¶

• Removed the 5-page limit on previewing PDFs.

• Added “files” as a reserved team name.

• Searching for a channel by URL now returns the channel.

• Users are now provided with feedback when creating a custom category name that exceeds the character limit.

Administration¶

• Added support for compressed export files with attachments.

• Server crashes due to runtime panics are now captured as a log line.

• Optimized Direct Message creation by fetching all users involved in a single database call.

• During the user import process, a change in a user’s NotifyProps will not send an email notification. This is done to make it consistent with other parts of the import process where a change in user’s attributes would also not send any notifications.

• Implemented a job to delete unused export files.

• Improved the websocket implementation by using epoll to manually read from a websocket connection. As a result, the number of goroutines is expected to go down by half. This implementation is only available on Linux and FreeBSD-based distributions. If you are using NGINX as a proxy to Mattermost, please ensure to have proxy_http_version 1.1; in the block that handles the websocket path.

OpenID Connect (Cloud Professional & Enterprise)¶

• OpenID Connect enables authentication to Mattermost using any OAuth 2.0 provider that adheres to the OpenID Connect specification. This feature will be available for Mobile Apps in an upcoming v1.40 release.

User Interface (UI)¶

• Improved the Add Members modal user interface.

• Added formatting shortcut keys to the Shortcut modal.

• Added localization to the date picker used when searching for posts around a given date.

• The autocomplete popover is now positioned relative to the @, ~, or / trigger in the post draft.

Notifications¶

• Posts from OAuth 2.0 bots no longer trigger mentions for the user.

Administration¶

• Added an ImportDelete job to periodically delete unused import files after a configurable retention period has passed.

• Introduced new mattermost_system_server_start_time and mattermost_jobs_active metrics for improved debugging with Grafana dashboards.

• Deleting a reaction is now a soft delete in the Reactions table. A schema update is required and may take up to 15 seconds on first run with large data sets.

• Changed default MaxFileSize from 50MB to 100MB.

• Updated Go dependencies to their latest minor version.

Channel Sidebar Improvements¶

• New channel sidebar improvements include a configurable Unreads category as well as the ability to sort categories by recent activity or alphabetically in addition to manually.

User Interface (UI)¶

• Added new languages, Bulgarian and Swedish.

• Moved the header icons to the left of the header beside the channel description.

• The Database search using PostgreSQL now supports searching for terms that contain underscores.

Plugins¶

• Enabled experimental support for ARM64 plugins by allowing any matching GOOS-GOOARCH combination in the plugin manifest.

Administration¶

• The UseExperimentalGossip field under ClusterSettings is now true by default. This means that new installations will use the Gossip protocol for cluster communication. There will be no changes to existing installations. The Gossip protocol is now considered to be in General Availability and is the recommended clustering mode.

• AnalyticsPostCount now avoids unnecessary table scans during various background jobs.

• Added a CollapsedThreads feature flag.

• The Help text for the Rate Limiting setting was updated to explain the purpose of rate limiting.

• Removed the word “experimental” from the Gossip setting in the System Console.

• Deprecated the ExperimentalChannelSidebarOrganization setting and added a new EnableLegacySidebar setting. The new channel sidebar will be enabled system-wide by default.

Bug Fixes¶

• Fixed an issue where the Admin Filter option was not disabled in the AD/LDAP page for Admin roles with a sysconsole_write_authentication permission.

• Fixed an issue where channels would sometimes be removed from custom categories when a user left a team.

• Fixed an issue where the error text was missing when the team name was left blank on the Team Create page.

• Fixed an issue where the System Manager was able to download the Compliance Export files.

• Fixed an issue where themed button colours in interactive message attachments in Mattermost’s default dark theme were mismatched.

• Fixed an issue where bold and italics shortcuts triggered with CTRL+B on Mac.

• Fixed an issue where a “Your license does not support cloud requests” log error appeared on self-hosted servers.

Known Issues¶

• Setting changes do not get saved on System Console > Site Configuration > Public Links.

• Alignment of team icons are off on System Console > User Management >Teams Page.

• Alignment of channel header text “This channel has guests” is off.

• Sometimes an “Unable to get role” error appears when changing a channel member role on User Management > Channel.

• Cloud > “Tips & Next Steps” should not show an “Explore channels” section for guest users.

• System Roles shows License and Environment as possible permissions, but they are always hidden in Cloud.

User Interface (UI)¶

• Changed the number of file attachments allowed per post, from 5 to 10.

• Added support to move multi-selected groups of channels to another category via the More options menu.

Administration¶

• Updated the Go version to v1.15.5.

• Added support for automatic installation and enablement of plugins using feature flags.

• Added webhook create endpoints to local mode and the ability to create webhooks for other users.

• Added a Mattermost CLI command to initialize the database.

• Enabled ExperimentalDataPrefetch for all servers and removed the corresponding setting.

• Added support for processing import files through the API.

• Added support for protocol-relative URLs while using the Image Proxy.

• Added shared channels and remote_cluster_service under a license check.

• A Striped LRU cache is now used by default.

User Interface (UI)¶

• Added the ability to mute categories with the experimental sidebar feature.

• Added support for multi-selection of channels when dragging and dropping between channels in the experimental sidebar feature.

• Group messages are now returned in the channel switcher when only first names are typed.

• Issuing /dnd consecutively no longer unexpectedly toggles the user status between “Do Not Disturb” and “Online” and will only set the user’s status to “Do Not Disturb”.

Administration¶

• Added a new manage_remote_clusters permission.

• Enabled goSAML2 library as the only supported SAML library.

Modify new Admin roles permissions in the System Console (Beta)¶

• Added a user interface for the existing new system roles functionality including new permissions to read and write system roles.

Pre-package and enable incident management v1.1.1¶

User Interface¶

• @-autocomplete results are now prioritized based on recency and thread activity.

• File attachments below the size of 10 (KB, MB, GB, TB, etc.) now allow showing fractions.

• The formatting of the channel header change message was improved.

• Team invite workflow now shows BOT tags when the search returns Bot users.

• Added the ability to zoom in and out of PDF files.

• Added support for 16x16 base64 encoded mini images to use with progressive rendering.

Notifications¶

• Channel-wide mentions are now automatically disabled when a user mutes a channel.

Integrations¶

• Updated icon_emoji field in incoming webhooks to allow emojis to be specified with surrounding colons.

• Dynamic auto-completion is now supported for built-in slash commands.

• Added plugin hooks for ReationHasBeenAdded and ReactionHasBeenRemoved.

Administration¶

• Added the ability to load a set of custom configuration defaults from a MM_CUSTOM_DEFAULTS_PATH environment variable.

• Added AWS metering service support.

• Added the ability to retrieve compliance files from the System Console.

API Changes¶

• Added new local API endpoints for getting, updating, and deleting incoming and outgoing webhooks.

• Added new API endpoints to work with experimental collapsed threads.