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12.3 REDUCE mode version information

The version of REDUCE mode that is running is available as the value of the variable reduce-mode-version, which is a string that can be displayed in the echo area either by selecting the Show Version menu option from the REDUCE major mode menu or by running the command M-x reduce-mode-version (both of which also record it in the *Messages* buffer). If REDUCE mode is not running then an easy way to start it is to switch to a temporary buffer (e.g. by using C-x b tmp) and then switch it to REDUCE mode (by using M-x reduce-mode).