fix tags and message definition in a xml format

Imported from previous forum

where can i get the tag definition and messages definition which define the required and optional fields in a xml format for different version of protocol?

Use the FIX Repository at

http://fixprotocol.org/repository

There are a number of parts to the FIX Repository:

Fields

Enumerations

Components

Messages - special type of component

Message Contents

Datatypes (as of FIX 5.0)

where can i get the tag definition and messages definition which define
the required and optional fields in a xml format for different version
of protocol?