changelog for v4.1.0

Author: LukasPukenis

changelog.md

@@ -1,11 +1,14 @@
 ### v4.1.0
-### **UNRELEASED**
+### **SQL: Save, Query, Love**
 ---
 * Add IPv6 support
 * Add file rejections via `norddrop_reject_file()`
 * Switch to rusqlite for persistence
 * Try to open database in memory if path fails
 * Report database opening errors to moose
+* Use in memory database if on-disk fails
+* Checksum validation at the end of download
+* More trace logs on persistence layer
 
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