Ubdate innodb plugin break data (4 replies)

I update my sql server from MySQL 5.1.48 to MySQL 5.1.49,
in Announcement "InnoDB Plugin has been upgraded to version 1.0.10."

And now I lost all my data!
Return back to MySQL 5.1.48, dont help.

show tables; showa list of tables.
But
mysql> select * from objectcache;
ERROR 1146 (42S02): Table 'mediawiki.objectcache' doesn't exist

run with --innodb_force_recovery=4,6 dont help
check or repare table commands tns with
ERROR 1146 (42S02): Table 'mediawiki.objectcache' doesn't exist

All hardware is OK/