Google Protobuf Version between Gazebo 1.3 and Gazebo 1.4

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I am migrating from Gazebo 1.3.1 to Gazebo 1.4 now.

My google protoc version is 2.4.1. It was fine with Gazebo 1.3.1

But, I got problem after installing Gazebo 1.4. When I compiling my plugin, I always got following errors.

/usr/local/include/gazebo-1.4/gazebo/msgs/topic_info.pb.h:17:2: error: #error This file was generated by an older version of protoc which is
/usr/local/include/gazebo-1.4/gazebo/msgs/topic_info.pb.h:18:2: error: #error incompatible with your Protocol Buffer headers. Please
/usr/local/include/gazebo-1.4/gazebo/msgs/topic_info.pb.h:19:2: error: #error regenerate this file with a newer version of protoc.

I found that the required google protoc version is changed from 2.4.0~2.4.1 to 2.3.

Below is /usr/local/include/gazebo-1.4/gazebo/msgs/server_control.pb.h .

#if GOOGLE_PROTOBUF_VERSION < 2003000
#error This file was generated by a newer version of protoc which is
#error incompatible with your Protocol Buffer headers.  Please update
#error your headers.
#endif
#if 2003000 < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION
#error This file was generated by an older version of protoc which is
#error incompatible with your Protocol Buffer headers.  Please
#error regenerate this file with a newer version of protoc.
#endif

Do I need to downgrade google protoc?