utf8 is an alias for the
utf8mb3 character set. For more information,
see Section 10.9.2, “The utf8mb3 Character Set (3-Byte UTF-8 Unicode Encoding)”.
utf8mb3 character set is deprecated and
you should expect it to be removed in a future MySQL release.
utf8mb4 instead. Although
utf8 is currently an alias for
utf8mb3, at some point
utf8 is expected to become a reference to
utf8mb4. To avoid ambiguity about the
utf8, consider specifying
utf8mb4 explicitly for character set
references instead of