Update CHANGELOG.md

Adds a few missing entries to the CHANGELOG

CHANGELOG.md

@@ -25,6 +25,17 @@
 * Analytics trackers were removed from the admin panel; the extension
  `solidus_trackers` provides the same functionality
 
+* Updated Credit Card brand server-side detection regex to support more
+ brands and MasterCard's new BIN range. [#1477](https://github.com/solidusio/solidus/pull/1477)
+
+ Note: Most stores will be using client-side detection which was updated in
+ Solidus 1.2
+
+* `CreditCard`'s `verification_value` field is now converted to a string and
+ has whitespace removed on assignment instead of before validations.
+
+* The `lastname` field on `Address` is now optional. [#1369](https://github.com/solidusio/solidus/pull/1369)
+
 * Removals
 
  * Removed deprecated method `Spree::TaxRate.adjust` (not to be confused with