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Posted to commits@lucene.apache.org by rm...@apache.org on 2011/07/12 18:23:09 UTC

svn commit: r1145657 - /lucene/dev/trunk/solr/CHANGES.txt

Author: rmuir
Date: Tue Jul 12 16:23:08 2011
New Revision: 1145657

URL: http://svn.apache.org/viewvc?rev=1145657&view=rev
Log:
LUCENE-2048: add solr upgrade note

Modified:
    lucene/dev/trunk/solr/CHANGES.txt

Modified: lucene/dev/trunk/solr/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/solr/CHANGES.txt?rev=1145657&r1=1145656&r2=1145657&view=diff
==============================================================================
--- lucene/dev/trunk/solr/CHANGES.txt (original)
+++ lucene/dev/trunk/solr/CHANGES.txt Tue Jul 12 16:23:08 2011
@@ -295,6 +295,15 @@ Documentation
 
 ======================= 3.x (not yet released) ================
 
+Upgrading from Solr 3.3
+----------------------
+
+* The Lucene index format has changed and as a result, once you upgrade,
+  previous versions of Solr will no longer be able to read your indices.
+  In a master/slave configuration, all searchers/slaves should be upgraded
+  before the master.  If the master were to be updated first, the older
+  searchers would not be able to read the new index format.
+
 New Features
 ----------------------