Redmine

Alternatively, what configuration or plugin can I use to enable full Markdown emoji support in Redmine?

Currently, the following four icons have been verified to be supported correctly.

Redmine does not artificially restrict the the use of emojis in itself.

However, depending on your database and its configuration, it may restrict the characters which can be stored there. In general, emojis are just regular unicode characters. However they tend to be stored using 4 bytes. Some older versions of MySQL / MariaDB however defaulted to a character mode which only allowed unicode characters up to three bytes. MySQL calls this collation utf8mb3 or by its deprecated alias utf8. To be able to use 4-byte characters including most emojis, you have to update your database to use a utf8mb4 collation.

See the following ressources for more details and possible ways to fix this:

• #31921
• HowTo_convert_a_database_from_utf8_to_utf8mb4
• https://web.archive.org/web/http://blog.andriylesyuk.com/4-byte-utf-8-problem-in-redmine-and-how-to-fix-it/

Thank you very much for your support.

The issue with the transparent solution for Redmine 4.1.0 has been clearly identified.

I have a question: Why hasn't this website implemented the feature for utf8mb4 support yet?