Engine doesn't allow me to.

In case of incompatible changes between old and new table
versions, the mysqlcheck program prints error messages like
this:
  error: Table upgrade required. Please do
         "REPAIR TABLE `table_name`" to fix it!

However, InnoDB doesn't support REPAIR TABLE query, so the
message is confusing.


Error message text has been changed to:

  Table upgrade required. Please do "REPAIR TABLE `table_name`"
  or dump/reload to fix it!"