Mattermost Changelog

Release v2.1.0

Expected release date: 2016-03-16

Highlights

New Android application now available.
New desktop applications for Windows, Mac and Linux now in beta.
Brazilian Portuguese translation added.

New Features

Android Application

New Mattermost Android App supporting push notifications available for devices running Android 4.4.2+. Requires Mattermost server 2.1 and higher. See list of tested devices.

Desktop Application

New Desktop Application for Windows, Mac, and Linux now available as a beta release.

Languages

Added Portuguese language translation (Beta) available from Account Settings > Display.

Active Directory/LDAP (Enterprise Edition)

Create new teams using Active Directory/LDAP. Team creation and Active Directory/LDAP must be enabled in the System Console from Team Settings > Enable Team Creation and LDAP Settings > Enable LDAP.
Added Active Directory/LDAP synchronization to check for deactivated users on the LDAP server.

Improvements

System Console

Removed unused “Disable File Storage” option from the System Console as it is no longer relevant.
Added a warning message if a system admin demotes themselves.
System Console statistics now use a client store instead of fetching data and storing it in state.

Messaging

Custom slash commands now support temporary messages that appear only to the user that issued the command.
Username autocomplete list no longer suggests inactive users.

Mobile

Significant responsiveness and speed improvements using fastclick.
Team name and username are now shown in the LHS header.
Added a button to go back to the team URL page from the login page.

Files and Images

Increased the maximum size of image uploads to 24 megapixels.

User Interface

Custom theme color selectors are now organized into categories.
Add Members and Manage Members dialogs can now be filtered using a search bar.
Deactivated members no longer appear in the channel members list.
Keyboard focus is set to the text input box in the RHS if a user clicks the reply icon.
Permalinks are now displayed in a Copy Permalink dialog instead of a popover.
Permalink option is now available from the [...] menu on messages and comments in the RHS.
Reply icon now only appears on-hover for messages that don’t have replies.
Scroll bar now appears in the center channel.

Enterprise Edition

Access History now contains audits for adding and removing Enterprise licenses.

Bug Fixes

System console user management tab now shows username and email on different lines.
Yellow text box error no longer appears when the system is connected.
Wildcard search on MySQL databases is now fixed.
Usernames in the center channel no longer appear as “...” on login.
Deleted messages now delete in the RHS and center channel without requiring a page refresh.
Contact us email address in the footer of notification emails now uses the SupportEmail config setting instead of FeedbackEmail.
Email addresses are now required to have at least one letter before and after the @ sign.
Firefox desktop notifications are now fixed for some users experiencing missed notifications.
“User is typing” message containing long usernames no longer causes text wrapping.
Usernames appearing as “...” in the RHS when performing a search is fixed.
Links that end in image extensions but do not actually link to raw images no longer generate a blank image preview.
Channel handle field in the Rename Channel dialog is now visible on themes with dark backgrounds.
Autolinked images no longer persist after the post containing the link is deleted.
Code theme selector on IE11 now only shows one dropdown arrow and clicking directly on the arrow opens the dropdown.
Save/Cancel buttons for language selection in Account Settings are now formatted the same as other settings.
Inconsistent field spacing in the Channel Info dialog is fixed.
Recent mentions icon no longer jumps to the left of the search bar when the RHS is opened.
Custom slash command hints now show up in the autocomplete list.
GIF links inside code blocks no longer auto-post the GIFs.
Changing usernames no longer adds the old username to “words that trigger mentions”.
Notification email footer is now translated based on the sender’s language setting.
Slash command /me now posts as the user instead of a webhook message.
Logout slash command now forces logout.
Public links to file attachments on deleted posts no longer work.
Error message is now shown in IE11 when uploading more than 5 files or a file over 50 MB.

Compatibility

Changes from v2.0 to v2.1:

Android
Mattermost Android Application is for use with Mattermost platform v2.1 and higher.

Known Issues

File name tooltip stays open after clicking to download.
Unable to paste images into the text box on Firefox, Safari, and IE11.
Archived channels are not removed from the "More" menu for the person that archived the channel until after refresh.
First load of an empty channel does not display the introduction message.
Search results don't highlight searches for @username, non-latin characters, or terms inside Markdown code blocks.
Searching for a username or hashtag containing a dot returns a search where the dot is replaced with the "or" operator.
Hashtags containing a dash incorrectly highlight in the search results.
Emoji smileys ending with a letter at the end of a message do not auto-complete as expected.
Incorrect formatting when a new line is added directly after a list.
Timestamps are displayed in 12-hour format when set to 24-hour format.
Syntax highlighting code block is missing the label for Latex documents.
Posts from webhooks do not fire notifications to the user who created the webhook.
Theme color vector is not updated after making custom changes to a default theme.
Search term highlighting doesn't update on IE11 when search terms change but return the same posts.
Team creation via SSO fails when email domain is restricted.

Contributors

Many thanks to all our external contributors. In no particular order:

rodrigocorsi2
enahum
khoa-le
alanmoo
daizenberg
GuillaumeAmat
kernicPanel
timlyo
ttyniwa

Release v2.0.0

Expected Release date: 2016-02-16

Highlights

Incremented Version Number: Mattermost "2.0"

Version number incremented from "1.x" to "2.x" indicating major product changes, including:

Localization

Addition of localization support to entire user interface plus error and log messages
Added Spanish language translation (Beta quality) available from Account Settings > Display

Enhanced Support for Mobile Devices

BREAKING CHANGE to APIs: New Android and updated iOS apps require platform 2.0 and higher
iOS added app support for GitLab single-sign-on
iOS added app support for LDAP/AD single-sign-on (Enterprise Edition only)

Upgrade and Deployment Improvements

Mattermost v2.0 now upgrades from up to two previous major builds (e.g. v1.4.x and v1.3.x)
Added option to allow use of insecure TLS outbound connections to allow use of self-signed certificates

New Features

Localization

Addition of localization support to entire user interface plus error and log messages
Added Spanish language translation (Beta quality) available from Account Settings > Display

Slash Commands

Added Slack-compatible slash commands to integrate with external systems

iOS

iOS app added support for GitLab single-sign-on
iOS app added support for LDAP/AD single-sign-on (Enterprise Edition only)

Android

New open source Android application compatible with Mattermost 2.0 and higher

System Console

Added Site Reports to view system statistics on posts, channels and users.

Improvements

Upgrading

Mattermost v2.0 now upgrades from up to two previous major builds (e.g. v1.4.x and v1.3.x).

Files and Images

Public links to images and files created by users no longer expire
OGG attachments now play in preview window on Chrome and Firefox

Onboarding

“Get Team Invite Link” option is disabled from the main menu if user creation is disabled for the team
Tutorial colors improved to provide higher contrast with new default theme

Authentication

Added ability to sign in with username as an alternative to email address
Switching from email to SSO for sign in now updates email address to use the SSO email

System Console

Added option to allow use of insecure TLS outbound connections to allow use of self-signed certificates
Removed unused "Disable File Storage" option from System Console > File Storage
Added warning if a user demotes their account from System Administrator

Search

Hashtag search is no longer case sensitive
System messages no longer appear in search results
Date separator added to search results
Moved the recent mentions icon to the right of the search bar

Messaging

Changed the comment bubble to a reply arrow to make post replies and the RHS more discoverable
Time stamp next to sequential posts made by users now shows HH:MM instead of on-hover timestamp
Code blocks now support horizontal scrolling if content exceeds the max width

User Interface

Away status added to note users who have been idle for more than 5 minutes.
Long usernames are now truncated in the center channel and RHS
Added more favicon sizes for home screen icons on mobile devices

Bug Fixes

Incorrect “Mattermost unreachable” error on iOS no longer appears
Dialog to confirm deletion of a post now supports hitting “ENTER” to confirm deletion.
Keyboard focus on the New Channel modal on IE11 is now contained within the text box.
LHS indicator for “Unread Posts Above/Below” now displays on IE11
Unresponsive UI when viewing a permalink is fixed if a user clicks outside the text on the "Click here to jump to recent messages" bar.
Dismissed blue bar error messages no longer re-appear on page refresh.
Console error is no longer thrown on first page load in Firefox and Edge.
Console error and missing notification is fixed for the first direct message received from any user.
Comment bubble in Firefox no longer appears with a box around it on-hover.
Home screen icons on Android and iOS devices now appear with the Mattermost logo.
Switching channels now clears the “user is typing” message below the text input box.
iOS devices are no longer detected as “unknown” devices in the session history.

Compatibility

Changes from v1.4 to v2.0:

iOS
Mattermost iOS app v2.0 requires Mattermost platform v2.0 and higher.

config.json
Multiple setting options were added to config.json. Below is a list of the additions and their default values on install. The settings can be modified in config.json or the System Console.

Under ServiceSettings in config.json:
- "EnableCommands": false to set whether users can create slash commands from Account Settings > Integrations > Commands
- "EnableOnlyAdminIntegrations": true to restrict integrations to being created by admins only.
- "EnableInsecureOutgoingConnections": false sets whether outgoing HTTPS requests can accept unverified, self-signed certificates.
- Optional: "WebsocketSecurePort" : 443 sets the port on which the secured WebSocket will listen using the wss protocol. If this setting is not present in config.json, it defaults to 443.
- Optional: "WebsocketPort": 80 sets the port on which the unsecured WebSocket will listen using the ws protocol. If this setting is not present in config.json, it defaults to 80.
Under EmailSettings in config.json:
- "EnableSignInWithEmail": true allows users to sign in using their email.
- "EnableSignInWithUsername": false sets whether users can sign in with their username. Typically only used when email verification is disabled.

Localization
There are two new directories for i18n localization JSON files:

platform/i18n for server-side localization files
platform/web/static/i18n for client-side localization files

Database Changes from v1.4 to v2.0

The following is for informational purposes only, no action needed. Mattermost automatically upgrades database tables from the previous version's schema using only additions.

Users Table

Added Locale column

Licenses Table

Added Licenses Table

Commands Table

Added Commands Table

Known Issues

Navigating to a page with new messages containing inline images added via markdown causes the channel to scroll up and down while loading the inline images.
Microsoft Edge does not yet support drag and drop for file attachments.
No error message on IE11 when uploading more than 5 files or a file over 50 MB.
File name tooltip stays open after clicking to download.
Scroll bar does not appear in the center channel.
Unable to paste images into the text box on Firefox, Safari, and IE11.
Importing from Slack fails to load channels in certain cases.
System Console > Teams > Statistics > Newly Created Users shows all users as created "just now".
Username and email display on single line in System Console user management tab.
Searching for a phrase in quotations returns more than just the phrase on installations with a Postgres database.
Archived channels are not removed from the "More" menu for the person that archived the channel until after refresh.
First load of an empty channel does not display the introduction message.
Search results don't highlight searches for @username, non-latin characters, or terms inside Markdown code blocks.
Searching for a username or hashtag containing a dot returns a search where the dot is replaced with the "or" operator.
Search term highlighting doesn't update on IE11 when search terms change but return the same posts.
Hashtags less than three characters long are not searchable.
Hashtags containing a dash incorrectly highlight in the search results.
Users remain in the channel counter after being deactivated.
Permalinks for the second message or later consecutively sent in a group by the same author displaces the copy link popover or causes an error.
Emoji smileys ending with a letter at the end of a message do not auto-complete as expected.
Logout slash command does not force a logout.
Incorrect formatting when a new line is added directly after a list.
Timestamps are displayed in 12-hour format when set to 24-hour format.
GIF links inside code blocks auto-post the GIFs.
Syntax highlighting code block is missing the label for Latex documents.
Deleted messages don't delete in the RHS until a page refresh.

Contributors

Special thanks to enahum for creating the Spanish localization!

Many thanks to all our external contributors. In no particular order:

enahum
trashcan
khoa-le
alanmoo
fallenby
loafoe
gramakri
pawelad
cifvts
rosskusler
apskim

Release v1.4.0

Expected Release date: 2016-01-16

Release Highlights

Data Center Support

Deployment guides on Red Hat Enterprise Linux 6 and 7 now available
Legal disclosure and support links (terms of service, privacy policy, help, about, and support email) now configurable
Over a dozen new configuration options in System Console

Mobile Experience

iOS reference app now available from iTunes, compiled from open source repo
Date headers now show when scrolling on mobile, so you can quickly see when messages were sent
Added "rapid scroll" support for jumping quickily to bottom of channels on mobile

New Features

Mobile Experience

Date headers now show when scrolling on mobile, so you can quickly see when messages were sent
Added "rapid scroll" support for jumping quickily to bottom of channels on mobile

Authentication

Accounts can now switch between email and GitLab SSO sign-in options
New ability to customize session token length

System Console

Added Legal and Support Settings so System Administrators can change the default Terms of Service, Privacy Policy, and Help links
Under Service Settings added options to customize expiry of web, mobile and SSO session tokens, expiry of caches in memory, and an EnableDeveloper option to turn on Developer Mode which alerts users to any console errors that occur

Improvements

Performance and Testing

Added logging for email and push notifications events in DEBUG mode

Integrations

Added support to allow optional parameters in the Content-Type of incoming webhook requests

Files and Images

Animated GIFs autoplay in the image previewer

Notifications and Email

Changed email notifications to display the server's local timezone instead of UTC

User Interface

Updated the "About Mattermost" dialog formatting
Going to domain/teamname now goes to the last channel of your previous session, instead of Town Square
Various improvements to mobile UI, including a floating date indicator and the ability to quickly scroll to the bottom of the channel

Bug Fixes

Fixed issue where usernames containing a "." did not get mention notifications
Fixed issue where System Console did not save the "Send push notifications" setting
Fixed issue with Font Display cancel button not working in Account Settings menu
Fixed incorrect default for "Team Name Display" settings
Fixed issue where various media files appeared broken in the media player on some browsers
Fixed cross-contamination issue when multiple accounts log into the same team on the same browser
Fixed issue where color pickers did not update when a theme was pasted in
Increased the maximum number of channels

Compatibility

Config.json Changes from v1.3 to v1.4

Multiple settings were added to config.json. Below is a list of the changes and their new default values in a fresh install.

The following options can be modified in the System Console:

Under ServiceSettings in config.json:
- Added: "EnableDeveloper": false to set whether developer mode is enabled, which alerts users to any console errors that occur
- Added: "SessionLengthWebInDays" : 30 to set the number of days before web sessions expire and users will need to log in again
- Added: "SessionLengthMobileInDays" : 30 to set the number of days before native mobile sessions expire
- Added: "SessionLengthSSOInDays" : 30 to set the number of days before SSO sessions expire
- Added: "SessionCacheInMinutes" : 10 to set the number of minutes to cache a session in memory
Added SupportSettings section to config.json:
- Added: "TermsOfServiceLink": "/static/help/terms.html" to allow System Administrators to set the terms of service link
- Added: "PrivacyPolicyLink": "/static/help/privacy.html" to allow System Administrators to set the privacy policy link
- Added: "AboutLink": "/static/help/about.html" to allow System Administrators to set the about page link
- Added: "HelpLink": "/static/help/help.html" to allow System Administrators to set the help page link
- Added: "ReportAProblemLink": "/static/help/report_problem.html" to allow System Administrators to set the home page for the support website
- Added: "SupportEmail":"feedback@mattermost.com" to allow System Administrators to set an email address for feedback and support requests

The following options are not present in the System Console, and can be modified manually in the config.json file:

Under FileSettings in config.json:
- Added: "AmazonS3Endpoint": "" to set an endpoint URL for an Amazon S3 instance
- Added: "AmazonS3BucketEndpoint": "" to set an endpoint URL for Amazon S3 buckets
- Added: "AmazonS3LocationConstraint": false to set whether the S3 region is location constrained
- Added: "AmazonS3LowercaseBucket": false to set whether bucket names are fully lowercase or not

Known Issues

When navigating to a page with new messages as well as message containing inline images added via markdown, the channel may move up and down while loading the inline images
Microsoft Edge does not yet support drag and drop
No scroll bar in center channel
Pasting images into text box fails to upload on Firefox, Safari, and IE11
Public links for attachments attempt to download the file on IE, Edge, and Safari
Importing from Slack breaks @mentions and fails to load in certain cases with comments on files
System Console > TEAMS > Statistics > Newly Created Users shows all of the users are created "just now"
Favicon does not always become red when @mentions and direct messages are received on an inactive browser tab
Searching for a phrase in quotations returns more than just the phrase on Mattermost installations with a Postgres database
Deleted/Archived channels are not removed from the "More" menu of the person that deleted/archived the channel until after refresh
Search results don't highlight searches for @username, non-latin characters, or terms inside Markdown code blocks
Searching for a username or hashtag containing a dot returns a search where the dot is replaced with the "or" operator
Hashtags less than three characters long are not searchable
After deactivating a team member, the person remains in the channel counter
Certain symbols (<,>,-,+,=,%,^,#,*,|) directly before or after a hashtag cause the message to not show up in a hashtag search
Security tab > Active Sessions reports iOS devices as "unknown"
Getting a permalink for the second message or later consecutively sent in a group by the same author displaces the copy link popover or causes an error

Contributors

Many thanks to our external contributors. In no particular order:

npcode
hjf288
apskim
ejm2172
hvnsweeting
benburkert
erikthered

Release v1.3.0

Release date: 2015-12-16

Release Highlights

iOS App

New Mattermost iOS App now available for iPhone, iPad, and iPod Touch
New Mattermost Push Notification Service to relay notifications to custom iOS applications

Search Upgrades

Jump to search results in archives using new message permalinks
It's easier to find what you're looking for with improved auto-complete in search

Advanced Formatting

Express more in symbols, with new emoji auto-complete
Express more in numbers, with rendering of mathematical expressions using Latex (start code blocks with ```latex)
Personalize your look with new custom font settings under Account Settings > Display > Display Font

New Features

Authentication

Added unofficial SSO support for GitHub.com and GitHub Enterprise using GitLab UI

Improvements

Performance

Updated getProfiles service to return less data
Refactored several modals to use React-Boostrap
Refactored the center channel

Messaging & Comments

Added Markdown support for task lists
Added "Help" link for messaging
Added ability to preview a Markdown message before sending (enabled via Account Settings -> Advanced -> Preview pre-release features)

Onboarding

Minor upgrades to tutorial

User Interface

Visually combined sequential messages from the same user
Added ability to rename "Town Square"
Teammate name display option now applies to messages and comments
Menus and search improved on mobile UI
Switched to Emoji One style emojis

Bug Fixes

Removed the @all mention to keep users from accidentally spamming team sites
Fixed bug where the member list only showed "20" members for channels with more than 20 members
Fixed bug where the channel sidebar didn't order correctly on Postgres databases
Fixed bug where search results did not highlight when searching with quotation marks, wildcard, or in: and from: modifiers
Fixed bug with the cancel button not properly resetting the text in some account settings fields
Fixed bug where editing a post to be empty caused a 404 error
Fixed bug where logging out did not work properly on IE11
Fixed issue where refreshing the page with the right hand sidebar open caused "..." to show up in place of usernames
Fixed issue where invite to channel modal did not update properly when switching between channels

Compatibility

Config.json Changes from v1.2 to v1.3

Multiple settings were added to config.json. These options can be modified in the System Console, or manually updated in the existing config.json file. This is a list of changes and their new default values in a fresh install:

Under EmailSettings in config.json:
- Removed: "ApplePushServer": "" which is replaced with SendPushNotifications and PushNotificationServer
- Removed: "ApplePushCertPublic": "" which is replaced with SendPushNotifications and PushNotificationServer
- Removed: "ApplePushCertPrivate": "" which is replaced with SendPushNotifications and PushNotificationServer
- Added: "SendPushNotifications": false to control whether mobile push notifications are sent to the server specified in PushNotificationServer
- Added: "PushNotificationServer": "" to specify the address of the proxy server that re-sends push notifications to their respective services like APNS (Apple Push Notification Services)

Known Issues

System Console does not save Email Settings when "Save" is clicked
When navigating to a page with new messages as well as message containing inline images added via markdown, the channel may move up and down while loading the inline images
Microsoft Edge does not yet support drag and drop
Media files of type .avi .mkv .wmv .mov .flv .mp4a do not play properly
No scroll bar in center channel
Pasting images into text box fails to upload on Firefox, Safari, and IE11
Slack import @mentions break
Usernames containing a "." do not get mention notifications

Contributors

Many thanks to our external contributors. In no particular order:

florianorben
npcode
42wim
cifvts
rompic
jdhoek
Tsynapse
alexgaribay
vladikoff
jonathanwiesel
tamtamchik

Release v1.2.1

Released: 2015-11-16

Security Notice

Mattermost v1.2.1 is a bug fix release addressing a security issue in v1.2.0 affecting a newly introduced outgoing webhooks feature. Specifically, in v1.2.0 there was a check missing from outgoing webhooks, so a team member creating outgoing webhooks could in theory find a way to listen to messages in private channels containing popular words like "a", "the", "at", etc. For added security, Mattermost v1.2.1 now installs with incoming and outgoing webhooks disabled by default.

To limit the impact of this security issue, Mattermost v1.2.0 has been removed from the source repo. It is recommended that anyone who's installed v1.2.0 upgrade to v1.2.1 via the procedure described in the Mattermost Upgrade Guide.

Release Highlights

Outgoing webhooks

Mattermost users can now interact with external applications using outgoing webhooks
An application template demonstrating user queries sent to the Giphy search engine via Mattermost webhooks now available
A community application, Matterbridge, shows how to use webhooks to connect Mattermost with IRC

Search Scope Modifiers

Adding search term in:[channel_url_name] now limits searches within a specific channel
Adding search term from:[username] now limits searches to messages from a specific user

Syntax Highlighting

Syntax highlight for code blocks now available for Diff, Apache, Makefile, HTTP, JSON, Markdown, JavaScript, CSS, nginx, ObjectiveC, Python, XML, Perl, Bash, PHP, CoffeeScript, C, SQL, Go, Ruby, Java, and ini

Usability Improvements

Added tutorial to teach new users how to use Mattermost
Various performance improvements to support teams with hundreds of users
Direct Messages "More" menu now lets you search for users by username and real name

Improvements

Onboarding

New tutorial explaining how to use Mattermost for new users

Messaging and Notifications

Users can now search for teammates to add to Direct Message list via More menu
Users can now personalize Direct Messages list by removing users listed
Link previews - Adding URL with .gif file adds image below message
Added new browser tab alerts to indicate unread messages and mentions

Search

Adding search term in:[channel_url_name] now limits searches within a specific channel
Adding search term from:[username] now limits searches to messages from a specific user
Tip explaining search options when clicking into search box

Integrations

Outgoing webhooks now available
Made available application template showing outgoing webhooks working with Mattermost and external application

User Interface

Member list in Channel display now scrollable, and includes Message button to message channel members directly
Added ability to edit previous message by hitting UP arrow
Syntax highlighting added for code blocks
- Languages include Diff, Apache, Makefile, HTTP, JSON, Markdown, Java, CSS, nginx, ObjectiveC, Python, XML, Perl, Bash, PHP, CoffeeScript, C, SQL, Go, Ruby, Java, and ini.
- Use by adding the name of the language on the first link of the code block, for example: ```python
- Syntax color theme can be defined under Account Settings > Appearance Settings > Custom Theme
Updated Drag & Drop UI
Added 24 hour time display option

Team Settings

Added Team Settings option to include account creation URL on team login page
Added Team Settings option to include link to given team on root page
Ability to rotate invite code for invite URL

Extras

Added /shrug KEYWORD command to output: ¯\_(ツ)_/¯ KEYWORD
Added /me KEYWORD command to output: KEYWORD
Added setting option to send a message on control-enter instead of enter

System Console

New statistics page
Configurable option to create an account directly from team page

Bug Fixes

Various fixes to theme colors
Fixed issue with the centre channel scroll position jumping when right hand side was opened and closed
Added support for simultaneous login to different teams in different browser tabs
Incoming webhooks no longer disrupted when channel is deleted
You can now paste a Mattermost incoming webhook URL into the same field designed for a Slack URL and integrations will work

Compatibility

IE 11 new minimum version for IE, since IE 10 share fell below 5% on desktop
Safari 9 new minimum version for Safari, since Safari 7 and 8 fell below 1% each on desktop

Config.json Changes from v1.1 to v1.2

Multiple settings were added to config.json. These options can be modified in the System Console, or manually updated in the existing config.json file. This is a list of changes and their new default values in a fresh install:

Under TeamSettings in config.json:
- Added: "RestrictTeamNames": true to control whether team names can contain reserved words like www, admin, support, test, etc.
- Added: "EnableTeamListing": false to control whether teams can be listed on the root page of the site
Under ServiceSettings in config.json
- Added: "EnableOutgoingWebhooks": false to control whether outgoing webhooks are enabled
- Changed: "EnableIncomingWebhooks": true to "EnableIncomingWebhooks": false to turn incoming webhooks off by default, to increase security of default install. Documentation updated to enable webhooks before use.

Database Changes from v1.1 to v1.2

The following is for informational purposes only, no action needed. Mattermost automatically upgrades database tables from the previous version's schema using only additions. Sessions table is dropped and rebuilt, no team data is affected by this.

Channels Table

Renamed Description to Header
Added Purpose column with type varchar(1024)

Preferences Table

Added Preferences Table

Teams Table

Added InviteId column with type varchar(32)
Added AllowOpenInvite column with type tinyint(1)
Added AllowTeamListing column with type tinyint(1)
Added idx_teams_invite_id index

Known Issues

When navigating to a page with new messages as well as message containing inline images added via markdown, the channel may move up and down while loading the inline images
Microsoft Edge does not yet support drag and drop
After upgrading to v1.2 existing users will see the newly added tutorial tips upon login (this is a special case for v1.2 and will not happen in future upgrades)
Channel list becomes reordered when there are lowercase channel names in a Postgres database
Member list only shows "20" members for channels with more than 20 members
Searches containing punctuation are not highlighted in the results (including in: or from: search modifiers and searches with quotations)
Media files of type .avi .mkv .wmv .mov .flv .mp4a do not play properly
Editing a post so that it's text is blank (which should delete it) throws a 404
No scroll bar in centre channel
Theme color import from Slack fails to import the “Active Channel” selection color
Pasting images into text box fails to upload on Firefox and Safari
Users cannot claim accounts imported from Slack via password reset
Slack import @mentions break

Contributors

Many thanks to our external contributors. In no particular order:

florianorben
trashcan
girishso
apaatsio
jlebleu
stasvovk
mcmillhj
sharms
jvasallo
layzerar
optimistiks
Tsynapse
vinnymac
yuvipanda
toyorg

Release v1.2.0 (Redacted Release)

Final release: 2015-11-16 (Note: This release was removed from public availability and replaced by v1.2.1 owing to a security issue with the new outgoing webhooks feature. See v1.2.1 Release Notes for details).

Release v1.1.1 (Bug Fix Release)

Released 2015-10-20

About Bug Fix Releases

This is a bug fix release (v1.1.1) and recommended only for users needing a fix to the specific issue listed below. All other users should use the most recent major stable build release (v1.1.0).

View more information on Mattermost release numbering.

Release Purpose

Provide option for upgrading database from Mattermost v0.7 to v1.1

Upgrading Mattermost v0.7 to Mattermost v1.1 originally required installing Mattermost v1.0 to upgrade from the Mattermost v0.7 database, followed by an install of Mattermost v1.1.

This was problematic for installing Mattermost with GitLab omnibus since GitLab 8.0 contained Mattermost v0.7 and GitLab 8.1 was to include Mattermost v1.1

Therefore Mattermost v1.1.1 was created that can upgrade the database in Mattermost v0.7 to Mattermost v1.1 directly.

Users who configured Mattermost v0.7 within GitLab via the config.json file should consult documentation on upgrading configurations from Mattermost v0.7 to Mattermost v1.1.

Removes 32-char limit on salts

Mattermost v1.1 introduced a 32-char limit on salts that broke the salt generating in GitLab and this restriction was removed for 1.1.1.

Release v1.1.0

Released: 2015-10-16

Release Highlights

Incoming Webhooks

Mattermost now supports incoming webhooks for channels and private groups. This developer feature is available from the Account Settings -> Integrations menu. Documentation on how developers can use the webhook functionality to build custom integrations, along with samples, is available at http://mattermost.org/webhooks.

Improvements

Integrations

Improved support for incoming webhooks, including the ability to override a username and post as a bot instead

Documentation

Added documentation on config.json and System Console settings
Docker Toolbox replaces deprecated Boot2Docker instructions in container install documentation

Theme Colors

Improved appearance of dark themes

System Console

Client side errors now written to server logs
Added "EnableSecurityFixAlert" option to receive alerts on relevant security fix alerts
Various improvements to System Console UI and help text

Messaging and Notifications

Replaced "Quiet Mode" in the Channel Notification Settings with an option to only show unread indicator when mentioned

Bug Fixes

Fixed regression causing "Get Public Link" on images not to work
Fixed bug where certain characters caused search errors
Fixed bug where System Administrator did not have Team Administrator permissions
Fixed bug causing scrolling to jump when the right hand sidebar opened and closed

Known Issues

Slack import is unstable due to change in Slack export format
Uploading a .flac file breaks the file previewer on iOS

Compatibility

Config.json Changes from v1.0 to v1.1

Service Settings

Multiple settings were added to config.json and System Console UI. Prior to upgrading the Mattermost binaries from the previous versions, these options would need to be manually updated in existing config.json file. This is a list of changes and their new default values in a fresh install:

Under ServiceSettings in config.json:
- Added: "EnablePostIconOverride": false to control whether webhooks can override profile pictures
- Added: "EnablePostUsernameOverride": false to control whether webhooks can override profile pictures
- Added: "EnableSecurityFixAlert": true to control whether the system is alerted to security updates

Database Changes from v1.0 to v1.1

The following is for informational purposes only, no action needed. Mattermost automatically upgrades database tables from the previous version's schema using only additions. Sessions table is dropped and rebuilt, no team data is affected by this.

ChannelMembers Table

Removed NotifyLevel column
Added NotifyProps column with type varchar(2000) and default value {}

Contributors

Many thanks to our external contributors. In no particular order:

chengweiv5
pstonier
teviot
tmuwandi
driou
justyns
drbaker
thomas9987
chuck5
sjmog
chengkun
sexybern
tomitm
stephenfin

Release v1.0.0

Released 2015-10-02

Release Highlights

Markdown

Markdown support is now available across messages, comments and channel descriptions for:

Headings - in five different sizes to help organize your thoughts
Lists - both numbered and bullets
Font formatting - including bold, italics, ~~strikethrough~~, code, links, and block quotes)
In-line images - useful for creating buttons and status messages
Tables - for keeping things organized
Emoticons - translation of emoji codes to images like 🐑 💥 👍

See documentation for full details.

Themes

Themes as been significantly upgraded in this release with:

4 pre-set themes, two light and two dark, to customize your experience
18 detailed color setting options to precisely match the colors of your other tools or preferences
Ability to import themes from Slack

System console and command line tools

Added new web-based System Console for managing instance level configuration. This lets IT admins conveniently:

access core settings, like server, database, email, rate limiting, file store, SSO, and log settings,
monitor operations, by quickly accessing log files and user roles, and
manage teams, with essential functions such as team role assignment and password reset

In addition new command line tools are available for managing Mattermost system roles, creating users, resetting passwords, getting version info and other basic tasks.

Run ./platform -h for documentation using the new command line tool.

New Features

Messaging, Comments and Notifications

Full markdown support in messages, comments, and channel description
Support for emoji codes rendering to image files

Files and Images

Added ability to play video and audio files

System Console

UI to change config.json settings
Ability to view log files from console
Ability to reset user passwords
Ability for IT admin to manage members across multiple teams from single interface

User Interface

Ability to set custom theme colors
Replaced single color themes with pre-set themes
Added ability to import themes from Slack

Integrations

(Preview) Initial support for incoming webhooks

Improvements

Documentation

Added production installation instructions
Updated software and hardware requirements documentation
Re-organized install instructions out of README and into separate files
Added Code Contribution Guidelines
Added new hardware sizing recommendations
Consolidated licensing information into LICENSE.txt and NOTICE.txt
Added markdown documentation

Performance

Enabled Javascript optimizations
Numerous improvements in center channel and mobile web

Code Quality

Reformatted Javascript per Mattermost Style Guide

User Interface

Added version, build number, build date and build hash under Account Settings -> Security

Licensing

Compiled version of Mattermost v1.0.0 now available under MIT license

Bug Fixes

Fixed issue so that SSO option automatically set EmailVerified=true (it was false previously)

Compatibility

A large number of settings were changed in config.json and a System Console UI was added. This is a very large change due to Mattermost releasing as v1.0 and it's unlikely a change of this size would happen again.

Prior to upgrading the Mattermost binaries from the previous versions, the below options would need to be manually updated in your existing config.json file to migrate successfully. This is a list of changes and their new default values in a fresh install:

Config.json Changes from v0.7 to v1.0

Service Settings

Under ServiceSettings in config.json:
- Moved: "SiteName": "Mattermost" which was added to TeamSettings
- Removed: "Mode" : "dev" which deprecates a high level dev mode, now replaced by granular controls
- Renamed: "AllowTesting" : false to "EnableTesting": false which allows the use of /loadtest slash commands during development
- Removed: "UseSSL": false boolean replaced by "ConnectionSecurity": "" under Security with new options: None (""), TLS ("TLS") and StartTLS ('"StartTLS"`)
- Renamed: "Port": "8065" to "ListenAddress": ":8065" to define address on which to listen. Must be prepended with a colon.
- Removed: "Version": "developer" removed and version information now stored in model/version.go
- Removed: "Shards": {} which was not used
- Moved: "InviteSalt": "gxHVDcKUyP2y1eiyW8S8na1UYQAfq6J6" to EmailSettings
- Moved: "PublicLinkSalt": "TO3pTyXIZzwHiwyZgGql7lM7DG3zeId4" to FileSettings
- Renamed and Moved "ResetSalt": "IPxFzSfnDFsNsRafZxz8NaYqFKhf9y2t" to "PasswordResetSalt": "vZ4DcKyVVRlKHHJpexcuXzojkE5PZ5eL" and moved to EmailSettings
- Removed: "AnalyticsUrl": "" which was not used
- Removed: "UseLocalStorage": true which is replaced by "DriverName": "local" in FileSettings
- Renamed and Moved: "StorageDirectory": "./data/" to Directory and moved to FileSettings
- Renamed: "AllowedLoginAttempts": 10 to "MaximumLoginAttempts": 10
- Renamed, Reversed and Moved: "DisableEmailSignUp": false renamed "EnableSignUpWithEmail": true, reversed meaning of true, and moved to EmailSettings
- Added: "EnableOAuthServiceProvider": false to enable OAuth2 service provider functionality
- Added: "EnableIncomingWebhooks": false to enable incoming webhooks feature

Team Settings

Under TeamSettings in config.json:
- Renamed: "AllowPublicLink": true renamed to "EnablePublicLink": true and moved to FileSettings
- Removed: AllowValetDefault which was a guest account feature that is deprecated
- Removed: "TermsLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "PrivacyLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "AboutLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "HelpLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "ReportProblemLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "TourLink": "/static/help/configure_links.html" removed since option didn't need configuration
- Removed: "DefaultThemeColor": "#2389D7" removed since theme colors changed from 1 to 18, default theme color option may be added back later after theme color design stablizes
- Renamed: "DisableTeamCreation": false to "EnableUserCreation": true and reversed
- Added: "EnableUserCreation": true added to disable ability to create new user accounts in the system

SSO Settings

Under SSOSettings in config.json:
- Renamed Category: SSOSettings to GitLabSettings
- Renamed: "Allow": false to "Enable": false to enable GitLab SSO

AWS Settings

Under AWSSettings in config.json:
- This section was removed and settings moved to FileSettings
- Renamed and Moved: "S3AccessKeyId": "" renamed "AmazonS3AccessKeyId": "", and moved to FileSettings
- Renamed and Moved: "S3SecretAccessKey": "" renamed "AmazonS3SecretAccessKey": "", and moved to FileSettings
- Renamed and Moved: "S3Bucket": "" renamed "AmazonS3Bucket": "", and moved to FileSettings
- Renamed and Moved: "S3Region": "" renamed "AmazonS3Region": "", and moved to FileSettings

Image Settings

Under ImageSettings in config.json:
- Renamed: "ImageSettings" section to "FileSettings"
- Added: "DriverName" : "local" to specify the file storage method, amazons3 can also be used to setup S3

EmailSettings

Under EmailSettings in config.json:
- Removed: "ByPassEmail": "true" which is replaced with SendEmailNotifications and RequireEmailVerification
- Added: "SendEmailNotifications" : "false" to control whether email notifications are sent
- Added: "RequireEmailVerification" : "false" to control if users need to verify their emails
- Replaced: "UseTLS": "false" with "ConnectionSecurity": "" with options: None (""), TLS ("TLS") and StartTLS ("StartTLS")
- Replaced: "UseStartTLS": "false" with "ConnectionSecurity": "" with options: None (""), TLS ("TLS") and StartTLS ("StartTLS")

Privacy Settings

Under PrivacySettings in config.json:
- Removed: "ShowPhoneNumber": "true" which was not used
- Removed: "ShowSkypeId" : "true" which was not used

Database Changes from v0.7 to v1.0

The following is for informational purposes only, no action needed. Mattermost automatically upgrades database tables from the previous version's schema using only additions. Sessions table is dropped and rebuilt, no team data is affected by this.

Users Table

Added ThemeProps column with type varchar(2000) and default value {}

Teams Table

Removed AllowValet column

Sessions Table

Renamed Id column Token
Renamed AltId column Id
Added IsOAuth column with type tinyint(1) and default value 0

OAuthAccessData Table

Added new table OAuthAccessData
Added AuthCode column with type varchar(128)
Added Token column with type varchar(26) as the primary key
Added RefreshToken column with type varchar(26)
Added RedirectUri column with type varchar(256)
Added index on AuthCode column

OAuthApps Table

Added new table OAuthApps
Added Id column with type varchar(26) as primary key
Added CreatorId column with type varchar(26)
Added CreateAt column with type bigint(20)
Added UpdateAt column with type bigint(20)
Added ClientSecret column with type varchar(128)
Added Name column with type varchar(64)
Added Description column with type varchar(512)
Added CallbackUrls column with type varchar(1024)
Added Homepage column with type varchar(256)
Added index on CreatorId column

OAuthAuthData Table

Added new table OAuthAuthData
Added ClientId column with type varchar(26)
Added UserId column with type varchar(26)
Added Code column with type varchar(128) as primary key
Added ExpiresIn column with type int(11)
Added CreateAt column with type bigint(20)
Added State column with type varchar(128)
Added Scope column with type varchar(128)

IncomingWebhooks Table

Added new table IncomingWebhooks
Added Id column with type varchar(26) as primary key
Added CreateAt column with type bigint(20)
Added UpdateAt column with type bigint(20)
Added DeleteAt column with type bigint(20)
Added UserId column with type varchar(26)
Added ChannelId column with type varchar(26)
Added TeamId column with type varchar(26)
Added index on UserId column
Added index on TeamId column

Systems Table

Added new table Systems
Added Name column with type varchar(64) as primary key
Added Value column with type varchar(1024)`

Contributors

Many thanks to our external contributors. In no particular order:

jdeng
Trozz
LAndres
JessBot
apaatsio
chengweiv5

Release v0.7.0 (Beta1)

Released 2015-09-05

Release Highlights

Improved GitLab Mattermost support

Following the release of Mattermost v0.6.0 Alpha, GitLab 7.14 offered an automated install of Mattermost with GitLab Single-Sign-On (co-branded as "GitLab Mattermost") in its omnibus installer.

New features, improvements, and bug fixes recommended by the GitLab community were incorporated into Mattermost v0.7.0 Beta1--in particular, extending support of GitLab SSO to team creation, and restricting team creation to users with verified emails from a configurable list of domains.

Slack Import (Preview)

Preview of Slack import functionality supports the processing of an "Export" file from Slack containing account information and public channel archives from a Slack team.

In the feature preview, emails and usernames from Slack are used to create new Mattermost accounts, which users can activate by going to the Password Reset screen in Mattermost to set new credentials.
Once logged in, users will have access to previous Slack messages shared in public channels, now imported to Mattermost.

Limitations:

Slack does not export files or images your team has stored in Slack's database. Mattermost will provide links to the location of your assets in Slack's web UI.
Slack does not export any content from private groups or direct messages that your team has stored in Slack's database.
The Preview release of Slack Import does not offer pre-checks or roll-back and will not import Slack accounts with username or email address collisions with existing Mattermost accounts. Also, Slack channel names with underscores will not import. Also, mentions do not yet resolve as Mattermost usernames (still show Slack ID). These issues are being addressed in Mattermost v0.8.0 Migration Support.

New Features

GitLab Mattermost

Ability to create teams using GitLab SSO (previously GitLab SSO only supported account creation and sign-in)
Ability to restrict team creation to GitLab SSO and/or users with email verified from a specific list of domains.

File and Image Sharing

New drag-and-drop file sharing to messages and comments
Ability to paste images from clipboard to messages and comments

Messaging, Comments and Notifications

Send messages faster with from optimistic posting and retry on failure

Documentation

New style guidelines for Go, React and Javascript

Improvements

Messaging, Comments and Notifications

Performance improvements to channel rendering
Added "Unread posts" in left hand sidebar when notification indicator is off-screen

Documentation

Install documentation improved based on early adopter feedback

Bug Fixes

Fixed multiple issues with GitLab SSO, installation and on-boarding
Fixed multiple IE 10 issues
Fixed broken link in verify email function
Fixed public links not working on mobile

Contributors

Many thanks to our external contributors. In no particular order:

asubset
felixbuenemann
CtrlZvi
BastienDurel
manusajith
doosp
zackify
willstacey

Special thanks to the GitLab Mattermost early adopter community who influenced this release, and who play a pivotal role in bringing Mattermost to over 100,000 organizations using GitLab today. In no particular order:

cifvts
Chryb
cookacounty
bweston92
mablae
picharmer
cmtonkinson
cmthomps
m.gamperl
StanMarsh
alx1
jeanmarc-leroux
dnoe
dblessing
mechanicjay
larsemil
vga
stanhu
kohenkatz
RavenB1
booksprint
scottcorscadden
sskmani
gosure
jigarshah

Extra special thanks to GitLab community leaders for successful release of GitLab Mattermost Alpha:

marin
sytse

Release v0.6.0 (Alpha)

Released 2015-08-07

Release Highlights

Simplified on-prem install
Support for GitLab Mattermost (GitLab SSO, Postgres support, IE 10+ support)

Compatibility

Note: While use of Mattermost Preview (v0.5.0) and Mattermost Alpha (v0.6.0) in production is not recommended, we document compatibility considerations for a small number of organizations running Mattermost in production, supported directly by Mattermost product team.

Switched Team URLs from team.domain.com to domain.com/team

New Features

GitLab Mattermost

OAuth2 support for GitLab Single-Sign-On
PostgreSQL support for GitLab Mattermost users
Support for Internet Explorer 10+ for GitLab Mattermost users

File and Image Sharing

New thumbnails and formatting for files and images

Messaging, Comments and Notifications

Users now see posts they sent highlighted in a different color
Mentions can now also trigger on user-defined words

Security and Administration

Enable users to view and log out of active sessions
Team Admin can now delete posts from any user

On-boarding

“Off-Topic” now available as default channel, in addition to “Town Square”

Improvements

Installation

New "ByPassEmail" setting enables Mattermost to operate without having to set up email
New option to use local storage instead of S3
Removed use of Redis to simplify on-premise installation

On-boarding

Team setup wizard updated with usability improvements

Documentation

Install documentation improved based on early adopter feedback

Contributors

Many thanks to our external contributors. In no particular order:

ralder
jedisct1
faebser
firstrow
haikoschol
adamenger

Release v0.5.0 (Preview)

Released 2015-06-24

Release Highlights

First release of Mattermost as a team communication service for sharing messagse and files across PCs and phones, with archiving and instant search.

New Features

Messaging and File Sharing

Send messages, comments, files and images across public, private and 1-1 channels
Personalize notifications for unreads and mentions by channel
Use #hashtags to tag and find messages, discussions and files

Archiving and Search

Search public and private channels for historical messages and comments
View recent mentions of your name, username, nickname, and custom search terms

Anywhere Access

Use Mattermost from web-enabled PCs and phones
Define team-specific branding and color themes across your devices

Files

CHANGELOG.md

Latest commit

History

CHANGELOG.md

File metadata and controls

Mattermost Changelog

Release v2.1.0

Highlights

New Features

Improvements

Bug Fixes

Compatibility

Known Issues

Contributors

Release v2.0.0

Highlights

Incremented Version Number: Mattermost "2.0"

Localization

Enhanced Support for Mobile Devices

Upgrade and Deployment Improvements

New Features

Improvements

Bug Fixes

Compatibility

Database Changes from v1.4 to v2.0

Users Table

Licenses Table

Commands Table

Known Issues

Contributors

Release v1.4.0

Release Highlights

Data Center Support

Mobile Experience

New Features

Improvements

Bug Fixes

Compatibility

Config.json Changes from v1.3 to v1.4

Known Issues

Contributors

Release v1.3.0

Release Highlights

iOS App

Search Upgrades

Advanced Formatting

New Features

Improvements

Bug Fixes

Compatibility

Config.json Changes from v1.2 to v1.3

Known Issues

Contributors

Release v1.2.1

Security Notice

Release Highlights

Outgoing webhooks

Search Scope Modifiers

Syntax Highlighting

Usability Improvements

Improvements

Bug Fixes

Compatibility

Config.json Changes from v1.1 to v1.2

Database Changes from v1.1 to v1.2

Channels Table

Preferences Table

Teams Table

Known Issues

Contributors

Release v1.2.0 (Redacted Release)

Release v1.1.1 (Bug Fix Release)

About Bug Fix Releases

Release Purpose

Provide option for upgrading database from Mattermost v0.7 to v1.1

Removes 32-char limit on salts

Release v1.1.0

Release Highlights

Incoming Webhooks