utf8mb4

MySQL charset supporting four-byte characters

2 episodes mention this

Episodes

#5488: How Emoji Went From 176 Characters to 3,600

From a 176-character set built for Japanese pagers to a 3,600-character Unicode standard — and why your emoji breaks in production.

Sep 23
#5487: Why Your Spreadsheet Mangles José's Name

A deep dive into character sets, from ASCII to UTF-8, and why José becomes "JosÃ©" in your spreadsheet.

Sep 23