MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
SHOW {SLAVE | REPLICA} STATUS [FOR CHANNEL channel]
This statement provides status information on essential
parameters of the replica threads. From MySQL 8.0.22,
SHOW SLAVE STATUS is deprecated
and the alias SHOW REPLICA STATUS
should be used instead. The statement works in the same way as
before, only the terminology used for the statement and its
output has changed. Both versions of the statement update the
same status variables when used. Please see the documentation
for SHOW REPLICA STATUS for a
description of the statement.