Hi,

how would I go about informing the users about some actions they are
supposed to take _before_ upgrading a particular package to the current
version? They should run a program from the old package before
installing and using the new package.

All I could think of is a small HEADER fragment with a PRE-INSTALL
clause:

  case ${STAGE} in
  PRE-INSTALL)
          ${ECHO} important message
          sleep 10
          ;;
  esac

ciao
     Klaus