*** ./versioning.html.orig	Fri Jan 28 10:50:25 2011
--- ./versioning.html	Fri Jan 28 11:22:17 2011
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*** 13,19 ****
  </p>
  
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! Major releases usually change the internal format of system tables and data files.  These changes are often complex, so we don't maintain backward compatibility for data files.  A dump/reload of the database is required for major upgrades.
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--- 13,19 ----
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  <p>
! Major releases usually change the internal format of system tables and data files.  These changes are often complex, so we do not maintain backward compatibility of all stored data.  A dump/reload of the database or use of the <a href="http://www.postgresql.org/docs/current/static/pgupgrade.html">pg_upgrade</a> module is required for major upgrades.
  </p>
  
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