How to reset the root password in MySQL 8.0.11?

as here says:

This function was removed in MySQL 8.0.11

1.if you in skip-grant-tables mode
in mysqld_safe:

UPDATE mysql.user SET authentication_string=null WHERE User='root';
FLUSH PRIVILEGES;
exit;

and then, in terminal:

mysql -u root

in mysql:

ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'yourpasswd';

2.not in skip-grant-tables mode
just in mysql:

ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'yourpasswd';

Jus login to mysql with sudo

Sudo mysql

Then

ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY 'yourpasswd';
exit;

Test it

mysql -u root -p

Try this:

ALTER USER 'root'@'localhost' IDENTIFIED BY 'newPasswd';