Implemented a new cache with on disk storage and auto-update.

Change-Id: I41a35e9b02af4b905ff724cd13e4795f5c409d81
diff --git a/Changes b/Changes
index f2e7488..1b807e2 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,6 @@
+0.59.7 2021-11-08
+    - Implemented a new cache with on disk storage and auto-update (margaretha).
+
 0.59.6 2021-10-26
     - [bugfix] Fixed skipping of focus spans (fixed #78; margaretha,
       diewald)