diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bbb28a09bc..f0bbbfc1cc6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,11 @@
 
 - Fix integer range patterns, including nested record and exception patterns, incorrectly matching values below the range. https://github.com/rescript-lang/rescript/pull/8714
 
+#### :nail_care: Polish
+
+- Deprecate `Stdlib_Error` and `Stdlib_Exn` modules in favor of `JsError/JsExn`. https://github.com/rescript-lang/rescript/pull/8404
+- Deprecate `List.has` in favor of `List.some`. https://github.com/rescript-lang/rescript/pull/8807
+
 # 12.3.1
 
 #### :bug: Bug fix
diff --git a/packages/@rescript/runtime/Stdlib_Error.resi b/packages/@rescript/runtime/Stdlib_Error.resi
index 3abc756f860..86327ba7130 100644
--- a/packages/@rescript/runtime/Stdlib_Error.resi
+++ b/packages/@rescript/runtime/Stdlib_Error.resi
@@ -3,6 +3,7 @@ Functions for working with JavaScript exceptions.
 
 See [`Error`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) on MDN.
 */
+@@deprecated("Use `JsError` module")
 
 /** Represents a JavaScript exception. */
 @deprecated({
diff --git a/packages/@rescript/runtime/Stdlib_Exn.resi b/packages/@rescript/runtime/Stdlib_Exn.resi
index 5435507bc7b..e82347c6911 100644
--- a/packages/@rescript/runtime/Stdlib_Exn.resi
+++ b/packages/@rescript/runtime/Stdlib_Exn.resi
@@ -7,6 +7,7 @@
 /***
 Provide utilities for dealing with JS exceptions.
 */
+@@deprecated("Use `JsExn` module")
 
 /** Represents a JS exception */
 @deprecated({
diff --git a/packages/@rescript/runtime/Stdlib_List.resi b/packages/@rescript/runtime/Stdlib_List.resi
index bd150d8269b..09e85ed11b0 100644
--- a/packages/@rescript/runtime/Stdlib_List.resi
+++ b/packages/@rescript/runtime/Stdlib_List.resi
@@ -759,6 +759,8 @@ let equal: (list<'a>, list<'a>, ('a, 'a) => bool) => bool
 `has(list, element, f)` returns `true` if the list contains at least one
 `element` for which `f` returns \`true'.
 
+Use [`some`](#some) with a predicate instead.
+
 ## Examples
 
 ```rescript
@@ -769,6 +771,7 @@ list{1, 2, 3}->List.has(4, (a, b) => a == b) == false
 list{-1, -2, -3}->List.has(2, (a, b) => abs(a) == abs(b)) == true
 ```
 */
+@deprecated("Use `some` instead")
 let has: (list<'a>, 'b, ('a, 'b) => bool) => bool
 
 /**