diff --git a/CHANGELOG b/CHANGELOG
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--- /dev/null
+++ b/CHANGELOG
@@ -0,0 +1,3 @@
+0.6 (not released)
+
+    * Generate ciphers on demand. (Encryption table cache is removed.)
diff --git a/TODO b/TODO
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--- /dev/null
+++ b/TODO
@@ -0,0 +1 @@
+Add RC4 encryption support.