Index: JRE_VERSION_MIGRATION.txt
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--- JRE_VERSION_MIGRATION.txt	(revision 0)
+++ JRE_VERSION_MIGRATION.txt	(revision 0)
@@ -0,0 +1,15 @@
+If possible, use the same JRE major version at both index and search time.
+When upgrading to a different JRE major version, consider re-indexing. 
+
+Different JRE major versions may implement different versions of Unicode,
+which will change the way some parts of Lucene treat your text.
+
+For example: with Java 1.4, LetterTokenizer will split around the character U+02C6,
+but with Java 5 it will not.
+This is because Java 1.4 implements Unicode 3, but Java 5 implements Unicode 4.
+
+For reference, JRE major versions with their corresponding Unicode versions:
+Java 1.4, Unicode 3.0
+Java 5, Unicode 4.0
+Java 6, Unicode 4.0
+Java 7, Unicode 5.1

Property changes on: JRE_VERSION_MIGRATION.txt
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Added: svn:eol-style
   + native