How do you determine the InnoDB plugin version?

How do you determine the InnoDB plugin version?: "This works:

mysql> show variables like "innodb_version"\G
*************************** 1. row ***************************
Variable_name: innodb_version
       Value: 1.0.4

This does not because it always reports version 1.0 for PLUG_VERSION, at least until InnoDB plugin 2.0 arrives.

mysql> select * from plugins where PLUGIN_NAME="InnoDB"\G
*************************** 1. row ***************************
          PLUGIN_NAME: InnoDB
       PLUGIN_VERSION: 1.0
        PLUGIN_STATUS: ACTIVE
          PLUGIN_TYPE: STORAGE ENGINE
  PLUGIN_TYPE_VERSION: 50138.0
       PLUGIN_LIBRARY: NULL
PLUGIN_LIBRARY_VERSION: NULL
        PLUGIN_AUTHOR: Innobase Oy
   PLUGIN_DESCRIPTION: Supports transactions, row-level locking, and foreign keys
       PLUGIN_LICENSE: GPL

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