Update changelog (prepare for beta 4 release) (#6329)

Author: cknitt

CHANGELOG.md

@@ -10,15 +10,19 @@
 > - :house: [Internal]
 > - :nail_care: [Polish]
 
-# 11.0.0-beta.4 (Unreleased)
+# 11.0.0-beta.4
+
 #### :rocket: New Feature
-- Variants: Allow coercing from variant to variant, where applicable. https://github.com/rescript-lang/rescript-compiler/pull/6314
-- Variants: Experimental support for spreading variant type definitions, to copy constructors from one variant to another. https://github.com/rescript-lang/rescript-compiler/pull/6316
+
+- Variants: Allow coercing from variant to variant where applicable. https://github.com/rescript-lang/rescript-compiler/pull/6314
+- Variants: Experimental support for spreading variant type definitions to copy constructors from one variant to another. https://github.com/rescript-lang/rescript-compiler/pull/6316
 
 #### :boom: Breaking Change
-- Fixed the issue of name collision between the newly defined Js.Json.t and the variant constructor in the existing Js.Json.kind type. To address this, the usage of the existing Js.Json.kind type can be updated to Js.Json.Kind.t. https://github.com/rescript-lang/rescript-compiler/pull/6317
+
+- Fixed name collision between the newly defined Js.Json.t and the variant constructor in the existing Js.Json.kind type. To address this, the usage of the existing Js.Json.kind type can be updated to Js.Json.Kind.t. https://github.com/rescript-lang/rescript-compiler/pull/6317
 
 #### :bug: Bug Fix
+
 - Fixed outcome printing of uncurried higehr order function types. https://github.com/rescript-lang/rescript-compiler/pull/6323
 - Fixed printing of type constraints in template literal substitutions. https://github.com/rescript-lang/rescript-compiler/pull/6324