Documentation.

h2/src/docsrc/html/changelog.html

@@ -18,7 +18,12 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>Fulltext search: in-memory Lucene indexes are now supported.
+<ul><li>Executing the statement CREATE INDEX IF ALREADY EXISTS if the index already exists
+    no longer fails for a read only database.
+</li><li>MVCC: concurrently updating a row could result in the row to appear deleted in the second connection,
+    if there are multiple unique indexes (or a primary key and at least one unique index).
+    Thanks a lot to Teruo for the patch!
+</li><li>Fulltext search: in-memory Lucene indexes are now supported.
 </li><li>Fulltext search: UUID primary keys are now supported.
 </li><li>Apache Tomcat 7.x will now longer log a warning when unloading the web application, if using a connection pool.
 </li><li>H2 Console: support the Midori browser (for Debian / Raspberry Pi)

h2/src/docsrc/html/roadmap.html

@@ -32,6 +32,7 @@ See also <a href="build.html#providing_patches">Providing Patches</a>.
 </li><li>The default user name should be an empty string and not "sa".
 </li><li>Deprecate Csv.getInstance() (use the public constructor instead).
 </li><li>Move ErrorCode class to org.h2.api.
+</li><li>Deprecate the encryption algorithm XTEA.
 </li></ul>
 
 <h2>Priority 1</h2>

h2/src/main/org/h2/security/XTEA.java

@@ -11,11 +11,12 @@ import org.h2.message.DbException;
 
 /**
  * An implementation of the XTEA block cipher algorithm.
+ * <p>
  * This implementation uses 32 rounds.
+ * The best attack reported as of 2009 is 36 rounds (Wikipedia).
  */
 public class XTEA implements BlockCipher {
 
-    // best attack reported as of 2004 is 26 rounds [wikipedia]
     private static final int DELTA = 0x9E3779B9;
     private int k0, k1, k2, k3, k4, k5, k6, k7, k8, k9, k10, k11, k12, k13, k14, k15;
     private int k16, k17, k18, k19, k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k30, k31;