Update newfeatures

diff --git a/docs/manuals/en/main/newfeatures.tex b/docs/manuals/en/main/newfeatures.tex
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+++ b/docs/manuals/en/main/newfeatures.tex
@@ -847,6 +847,21 @@ compression will not be effective, and you are likely
 to end up with an average compression ratio that is very small.
 In this case, Bacula reports {\bf None} in the Job report. 
 
+\subsection{Deduplication Optimized Volumes}
+This version of Bacula includes a new alternative (or additional)
+volume format that optimizes the placement of files so
+that an underlying deduplicating filesystem such as ZFS
+can optimally deduplicate the backup data that is written
+by Bacula. These are called Deduplication Optimized Volumes
+or Aligned Volumes for short. The details of how to use this
+feature and its considerations are in the
+Deduplication Optimized Volumes whitepaper.
+
+\smallskip
+This feature is available if you have Bacula Community produced binaries
+and the Aligned Volumes plugin.
+
+
 
 \chapter{New Features in 7.4.0}
 This chapter presents the new features that have been added to