HISTORY.md in netsuite-0.9.0 vs HISTORY.md in netsuite-0.9.1

- old
+ new

@@ -1,9 +1,13 @@
 ## Unreleased
 
 
 ### Added
+* Add `Configuration#multi_tenant!` for opting into multi-tentant support where configuration/caching is per-thread (#556)
+
 ### Fixed
+* Avoid Savon version `2.13.0` to prevent generating invalid envelopes. (#558, #563)
+
 ### Breaking Changes
 
 ## 0.9.0
 
 ### Added