diff --git a/CHANGES.md b/CHANGES.md
index 0b97e15..1b48a7e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,8 @@
+## 0.6.6
+
+* Rename `Operation.flow_options` to `Operation.flow_options_for_public_call`.
+* Operations can also accept `flow_options` at run-time now :beers:, giving them precedence over `Operation.flow_options_for_public_call`.
+
 ## 0.6.5
 
 * Upgrade `trailblazer-activity` & `trailblazer-activity-dsl-linear` versions to utilise new `trailblazer-context` :drum:
diff --git a/lib/trailblazer/operation/version.rb b/lib/trailblazer/operation/version.rb
index 013e5da..dd5389e 100644
--- a/lib/trailblazer/operation/version.rb
+++ b/lib/trailblazer/operation/version.rb
@@ -1,7 +1,7 @@
 module Trailblazer
   module Version
     module Operation
-      VERSION = "0.6.5"
+      VERSION = "0.6.6"
     end
   end
 end