The following links provide documentation on the patches included in the Percona XtraDB.

^ Name ^ Description ^ Introduced in ^ 
| [[percona-xtradb:patch:innodb_buffer_pool_pages]] | Add information_schema tables to print contents of buffer pool | 1.0.2-1 | 
| [[percona-xtradb:patch:innodb_buffer_pool_shm]] | Use shared memory segment for the buffer pool and reuse if exist and clean | |
| [[percona-xtradb:patch:innodb_admin_command_base]] | Add command interface to XtraDB through information_schema for the future implementation | |
| [[percona-xtradb:patch:innodb_dict_size_limit]] | Limits the size of InnoDB's data dictionary cache | |
| [[percona-xtradb:patch:innodb_expand_import]] | Can import arbitrary .ibd file exported by XtraBackup | |
| [[percona-xtradb:patch:innodb_expand_undo_slots]] | Support to expand undo slots over 1024 | 1.0.2-2 |  
| [[percona-xtradb:patch:innodb_extend_slow]] | Using with slow_extended.patch for MySQL-5.1 (XtraDB part of the microslow_innodb.patch) | |
| [[percona-xtradb:patch:innodb_extra_rseg]] |Support multiple rollback segments  | 1.0.2-3 |
| [[percona-xtradb:patch:innodb_io]] | Support some enhancements about IO | 1.0.2-1 |
| [[percona-xtradb:patch:innodb_lru_dump_restore]] | Dump and restore command for content of buffer pool | Not yet |
| [[percona-xtradb:patch:innodb_opt_lru_count]] | Change counting blocks from LRU list optimistic without mutex | 1.0.2-1 | 
| [[percona-xtradb:patch:innodb_overwrite_relay_log_info]] | Support aligning relay-log.info at recovery slave server | 1.0.3-4 | 
| [[percona-xtradb:patch:innodb_purge_thread]] | add purge devoted threads | |
| [[percona-xtradb:patch:innodb_recovery_patches]] | Bugfixes and adjustments about recovery process | |
| [[percona-xtradb:patch:innodb_relax_table_creation]] | Make the size criteria for create table relaxed same as builtin InnoDB | |
| [[percona-xtradb:patch:innodb_show_enhancements]] | information_schema table to print these patches | 1.0.2-1 |  
| [[percona-xtradb:patch:innodb_show_lock_name]] | Show mutex/lock name instead of crated file/line | |
| [[percona-xtradb:patch:innodb_show_status]] | Some additional features for SHOW INNODB STATUS command | 1.0.2-1 | 
| [[percona-xtradb:patch:innodb_split_buf_pool_mutex]] | Split one mutex buf_pool_mutex into several mutexes and rw_locks | 1.0.2-1 | 
| [[percona-xtradb:patch:innodb_stats]] | Additional features about InnoDB statistics/optimizer | |
| [[percona-xtradb:patch:innodb_thread_concurrency_timer_based]] | use InnoDB timer based concurrency throttling (backport from MySQL 5.4.0) | |