MYSQL new version appears " Client does not support authentication protocol requested by server; Consider..

Client|mysql|request|server MySQL Help: a.2.3 Client does not support authentication protocol
MySQL 4.1 and up uses the authentication protocol based on a password hashing algorithm this is incompatible with that used by older clients. If You upgrade the "server to" 4.1, attempts to connect to it with a older client may fail with the following message:

Shell> Mysqlclient does not support authentication protocol server; Consider upgrading MySQL client

To solve this problem, for should use one of the following approaches:
Upgrade all client programs to use a 4.1.1 or newer client library. When connecting to the "server with a" pre-4.1 client program, use A is still has a pre-4.1-style password. Reset the password to pre-4.1 style for each user this needs to use a pre-4.1 client program. This can is done using the SET PASSWORD statement and the Old_password () function:
Mysql> SET PASSWORD for-> ' some_user ' @ ' some_host ' = Old_password (' newpwd ');
Alternatively, use UPDATE and FLUSH privileges:
mysql> UPDATE mysql.user SET Password = Old_password (' newpwd ')-> WHERE Host = ' some_host ' and user = ' Some_user '; my sql> FLUSH privileges;
Substitute the password you want to the "' Newpwd" in the preceding examples. MySQL cannot tell you what the original password is, so you'll need to pick a new one. The older password hashing Algorithm:start mysqld with the--old-passwords option. Assign an Old-format password to each account this has had its password updated to the longer 4.1 format. You can identify this accounts with the following query:
Mysql> SELECT Host, User, Password from Mysql.user-> WHERE LENGTH (Password) > 16;
For the displayed by the query, use the Host and User values and assign a password using the Old_password ( ) function and either SET PASSWORD or UPDATE as described earlier.
For additional background on password hashing and authentication, you'll be 5.5.9 password in MySQL 4.1.


Example:
SET PASSWORD for user name @localhost = old_password (' password ');