diff --git a/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-4.md b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-4.md
new file mode 100644
index 0000000000..eb762a58a8
--- /dev/null
+++ b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-4.md
@@ -0,0 +1,8 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http"
+  - "@typespec/openapi3"
+---
+
+Updated the OpenAPI3 and HTTP libraries to use the new visibility analysis APIs.
\ No newline at end of file
diff --git a/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-52.md b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-52.md
new file mode 100644
index 0000000000..7efb81f915
--- /dev/null
+++ b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-8-52.md
@@ -0,0 +1,7 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/compiler"
+---
+
+Added APIs for getting parameterVisibility and returnTypeVisibility as VisibilityFilter objects.
\ No newline at end of file
diff --git a/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-9-45.md b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-9-45.md
new file mode 100644
index 0000000000..4f9e22eb7b
--- /dev/null
+++ b/.chronus/changes/witemple-msft-http-visibility-enum-2024-11-19-13-9-45.md
@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-server-csharp"
+---
+
+Fixed a null visibility constraint when calculating effective type.
\ No newline at end of file