HISTORY.md in netsuite-0.8.12 vs HISTORY.md in netsuite-0.9.0

@@ -1,9 +1,29 @@
 ## Unreleased
 
-### Added
 
+### Added
 ### Fixed
+### Breaking Changes
+
+## 0.9.0
+
+### Added
+
+* Update `Customer` record fields/record refs for 2021.2. (#535)
+The following were moved from `fields` to `record_refs`: `buying_reason`, `buying_time_frame`, `campaign_category`, `image`, `opening_balance_account`, `pref_cc_processor`, `representing_subsidiary`, `sales_group`, `sales_readiness`
+The following were removed as `fields` since their sublist class is not yet implemented: `download_list`, `group_pricing_list`, `item_pricing_list`
+* Add search-only fields to `Customer` (#535)
+* Add `attach_file` action to `Customer` records (#544)
+* Add `update` action to `File` records (#544)
+* Expose `errors` after calls to `delete` action (#545)
+* Add `update_list` action where missing on supported item records (#546)
+* Ignore `after_submit_failed` status details (>= 2018.2) when collating errors in add action (#550)
+* Add `NullFieldList` to `SalesOrder` (#552)
+* Add thread safety to NetSuite configuration and utilities (#549)
+
+### Breaking Changes
+* Rename `CustomerSubscriptionsList` to `SubscriptionsList` and `CustomerSubscription` to `Subscription` to match NetSuite naming (#535)
 
 ## 0.8.12
 
 ### Added