27 Oct 2019 Edited #1

Symposium beta 2

Symposium is a simple yet elegant conversation-based interface which replaces MyBB's email-based private messaging system.

Symposium is currently running on MyBBoost. Click on the mail icon in the header to access conversations and test it.

Minimum requirements

PHP 7.1
MyBB 1.8.0


Modern chat feeling

Messages are displayed in a modern fashion, inspired by WhatsApp's design. Own messages are displayed on the right side while others' messages are placed on the left in a different color. Folders are hidden and give way to a single page with all active conversations, all in one place.

Easy read status

Messages sent have a little double check icon which turns blue when the recipient reads the message. This allows for quick visualization of a message read status, and replaced de facto the old tracking page.

Smooth integration

Symposium is compatible with most of other plugins as long as they use the native MyBB pm class, which is often if not always the case. This is possible because Symposium does not run separately from the native PM system, but integrates within it and enhances it while keeping its structure and functions intact. Some examples? MyAlerts, PM on registration, Newpoints, Flyover 2.3, BankPipe beta 10... they are all working out of the box.

Converter with backwards compatibility

Symposium automatically sorts and converts existing private messages into conversations upon install. When you uninstall the plugin, your messages will still be there, except if you have deleted them when Symposium was installed.

WARNING SIGN If you did not have copies of sent messages in your "Sent" folder before Symposium was installed, conversations will just include the other user's messages and will look like a monologue. Messages sent from when Symposium has been installed onwards will have hard copies in the "Sent" folder by default.

Mass deleting

Deleting PMs has always been painful and limited, due to many PMs belonging to the same person. Symposium boosts messages deletion by allowing users to delete multiple, entire conversations at once.

WARNING SIGN Private messages belonging to each conversation will be moved to the Trash Bin folder, so they can be recovered if the plugin is uninstalled. Symposium does not read the Trash bin folder so it will not display deleted conversations at all.

Editor support

Symposium replicates the default editor settings by using the codebuttons template, exactly like in posts. Plugins which hook into or use this template are also supported. The editor is loaded both in the new conversation page and in quick replies.

Delete for me or for everyone CALENDAR

Messages sent are hard copied into the sender's "Sent" folder. This allows extreme flexibility when it comes to delete messages: you can set a timespan during which an user can delete messages for him and the recipient, after which he can only delete his own messages.

WARNING SIGN This feature will be included in future releases.

Multiple participants CALENDAR

Symposium has the potential to accomodate multiple participants in one single chat, much like all modern chats allow.

WARNING SIGN This feature will be included in future releases.


Upload the files maintaining the same folder structure as they come in the package and click the button Install & activate within your board's plugin list.

Convert existing private messages

Symposium can convert existing private messages to conversations. The process does not alter existing private messages but it adds columns and tables in the database, so you will be able to go back anytime by uninstalling Symposium.

WARNING SIGN Before starting the conversion, ensure your /cache folder has 777 chmod permissions.

In the plugins list under Symposium's row you will notice a text saying you have a certain number of PMs to convert. Start the conversion by clicking on the homonym button. The process will be performed incrementally and progress will be displayed in real time.

WARNING SIGN Do not close the page before the conversion is over.

Templates and stylesheets

Symposium adds a CSS file named symposium.css to every theme of your board, and several templates with the symposium_ prefix. You can customize the plugin's appearance by editing the stylesheet's CSS rules and templates.

Reporting issues

If you encounter an issue, feel free to open a new thread in this forum with detailed instructions on how to reproduce your issue. Suggestions and feature requests are appreciated as well.


An Advanced or Ultimate subscription is required to download Symposium (click here to subscribe). Alternatively, you can perform a single purchase by adding the item to your cart and checkout at a later date. You can purchase using PayPal or several cryptocurrencies. Every successful payment lasts forever and may be refunded within 30 days if you are not satisfied.

Before purchasing or subscribing, read the End-User License Agreement (EULA).
Filename Size Downloads
Symposium beta 2.zip
24.12 KB 69
Ant, metonator, aceman And 7 others like this post
Shade 28 Oct 2019


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Jonathan Smith and MRT97 like this post
Shade 31 Oct 2019

PUBLIC ADDRESS LOUDSPEAKER Symposium beta 2 is out

The second beta of Symposium is now available. This version fixes some reported bugs which may prevent the plugin from installing properly and adds support for header notifications about new conversations.

Notable changes and fixes

BUG fixed Plugin List Disappears. Reported by @RocketFoot
BUG fixed avatar for users without one set. Reported by @ProX in Current bugs - beta 1
BUG fixed conversation name with the proper username for email notifications. In beta 1, the notification would contain the user's own name instead of the actual recipient
SQUARED NEW added header notifications. Requested by @ProX in Current bugs - beta 1

WARNING SIGN beta 2 adds core edits. These are applied automatically upon install, and can be managed with an handy button under Symposium's row in your plugins list.

Upgrading to beta 2

Make a backup of your database before upgrading. The upgrade process is straightforward:
KEYCAP 1 upload the new version maintaining the same folder structure as in the release package
KEYCAP 2 apply the core edits by clicking on the button "Apply core edits" within Symposium's row in your plugins list
KEYCAP 3 create a template in your theme called symposium_pm_notice and populate it with inc/plugins/Symposium/templates/pm_notice.html file content.

If you have a small board (eg.: less than 10.000 PMs in total), it's probably more convenient to skip steps KEYCAP 2 and KEYCAP 3 and simply uninstall, reinstall the plugin and convert PMs again.
Tac, Pololoko 125, andrewjs18 And 1 others like this post