MySQL 8.2 Release Notes
utf8 has been used by MySQL in the past as an
alias for the utf8mb3 character set, but this
usage is now deprecated; in MySQL 8.2,
SHOW statements and columns of Information
Schema tables display utf8mb3 instead. For
more information, see Section 10.9.2, “The utf8mb3 Character Set (3-Byte UTF-8 Unicode Encoding)”.
Note
The utf8mb3 character set is deprecated and
you should expect it to be removed in a future MySQL release.
Please use utf8mb4 instead.
utf8 is currently an alias for
utf8mb3, but it is now deprecated as such,
and utf8 is expected subsequently to become
a reference to utf8mb4. In MySQL
8.2, utf8mb3 is also displayed
in place of utf8 in columns of Information
Schema tables, and in the output of SQL
SHOW statements.
To avoid ambiguity about the meaning of
utf8, consider specifying
utf8mb4 explicitly for character set
references.