Fill changelog.

CHANGES.txt

@@ -4,6 +4,20 @@ Change History
 1.5.3 (unreleased)
 ==================
 
+1.5.3-dev-SlapOS-002
+--------------------
+
+- Support networkcache by slapos.libnetworkcache library.
+
+- Make extends less hungry for network, by making URLs canonical.
+
+Bugs fixed:
+
+- Fix exception hiding in checksum error redownloading.
+
+1.5.3-dev-SlapOS-001
+--------------------
+
 - Make ${:_profile_location_} and ${:_profile_base_location_} parameters
   available in parts to access current profile location (url, path)
   or base location (base of url or path).