From 01fa502930ea713cc1507e0e5ede954bb6746f14 Mon Sep 17 00:00:00 2001
From: Rodrigo Brandao <robrandao@microsoft.com>
Date: Thu, 6 Aug 2026 08:04:58 -0700
Subject: [PATCH 1/3] Updating pyproject.toml files

---
 libraries/microsoft-agents-activity/pyproject.toml             | 2 +-
 libraries/microsoft-agents-authentication-msal/pyproject.toml  | 2 +-
 libraries/microsoft-agents-copilotstudio-client/pyproject.toml | 2 +-
 libraries/microsoft-agents-hosting-aiohttp/pyproject.toml      | 2 +-
 libraries/microsoft-agents-hosting-core/pyproject.toml         | 2 +-
 libraries/microsoft-agents-hosting-dialogs/pyproject.toml      | 2 +-
 libraries/microsoft-agents-hosting-fastapi/pyproject.toml      | 2 +-
 libraries/microsoft-agents-hosting-msteams/pyproject.toml      | 2 +-
 libraries/microsoft-agents-hosting-slack/pyproject.toml        | 2 +-
 libraries/microsoft-agents-hosting-teams/pyproject.toml        | 2 +-
 libraries/microsoft-agents-storage-blob/pyproject.toml         | 2 +-
 libraries/microsoft-agents-storage-cosmos/pyproject.toml       | 2 +-
 12 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/libraries/microsoft-agents-activity/pyproject.toml b/libraries/microsoft-agents-activity/pyproject.toml
index 7d7891031..6b91d44fc 100644
--- a/libraries/microsoft-agents-activity/pyproject.toml
+++ b/libraries/microsoft-agents-activity/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=64"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-authentication-msal/pyproject.toml b/libraries/microsoft-agents-authentication-msal/pyproject.toml
index 8f910e831..6a00971ef 100644
--- a/libraries/microsoft-agents-authentication-msal/pyproject.toml
+++ b/libraries/microsoft-agents-authentication-msal/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=64"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-copilotstudio-client/pyproject.toml b/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
index ac3b079d9..ebeee8d37 100644
--- a/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
+++ b/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml b/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
index fcc63131e..9ebc4b6de 100644
--- a/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-core/pyproject.toml b/libraries/microsoft-agents-hosting-core/pyproject.toml
index c231347b1..db0b89937 100644
--- a/libraries/microsoft-agents-hosting-core/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-core/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-dialogs/pyproject.toml b/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
index ab948a1b3..a66e496a6 100644
--- a/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-fastapi/pyproject.toml b/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
index 8ba1a6cdd..564cd4442 100644
--- a/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-msteams/pyproject.toml b/libraries/microsoft-agents-hosting-msteams/pyproject.toml
index a21a04f28..3e5c580ec 100644
--- a/libraries/microsoft-agents-hosting-msteams/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-msteams/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-slack/pyproject.toml b/libraries/microsoft-agents-hosting-slack/pyproject.toml
index 79d2db73c..3f1a81780 100644
--- a/libraries/microsoft-agents-hosting-slack/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-slack/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-hosting-teams/pyproject.toml b/libraries/microsoft-agents-hosting-teams/pyproject.toml
index 3ab2c1459..88c539d4d 100644
--- a/libraries/microsoft-agents-hosting-teams/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-teams/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-storage-blob/pyproject.toml b/libraries/microsoft-agents-storage-blob/pyproject.toml
index 936b7481c..99781ed3a 100644
--- a/libraries/microsoft-agents-storage-blob/pyproject.toml
+++ b/libraries/microsoft-agents-storage-blob/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
diff --git a/libraries/microsoft-agents-storage-cosmos/pyproject.toml b/libraries/microsoft-agents-storage-cosmos/pyproject.toml
index 43b0dc9b4..1329af8cf 100644
--- a/libraries/microsoft-agents-storage-cosmos/pyproject.toml
+++ b/libraries/microsoft-agents-storage-cosmos/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]

From 88061083887125a7740270e79cfa1f78fc49d64b Mon Sep 17 00:00:00 2001
From: Rodrigo Brandao <robrandao@microsoft.com>
Date: Thu, 6 Aug 2026 08:36:30 -0700
Subject: [PATCH 2/3] Including py.typed files

---
 .../microsoft_agents/activity/py.typed                       | 0
 libraries/microsoft-agents-activity/pyproject.toml           | 3 +++
 .../authentication/entra_auth_sidecar/py.typed               | 0
 .../pyproject.toml                                           | 5 ++++-
 .../microsoft_agents/authentication/msal/py.typed            | 0
 .../microsoft-agents-authentication-msal/pyproject.toml      | 3 +++
 .../microsoft_agents/copilotstudio/client/py.typed           | 0
 .../microsoft-agents-copilotstudio-client/pyproject.toml     | 3 +++
 .../microsoft_agents/hosting/aiohttp/py.typed                | 0
 libraries/microsoft-agents-hosting-aiohttp/pyproject.toml    | 3 +++
 .../microsoft_agents/hosting/core/py.typed                   | 0
 libraries/microsoft-agents-hosting-core/pyproject.toml       | 3 +++
 libraries/microsoft-agents-hosting-dialogs/MANIFEST.in       | 1 +
 .../microsoft_agents/hosting/dialogs/py.typed                | 0
 libraries/microsoft-agents-hosting-dialogs/pyproject.toml    | 3 +++
 .../microsoft_agents/hosting/fastapi/py.typed                | 0
 libraries/microsoft-agents-hosting-fastapi/pyproject.toml    | 3 +++
 .../microsoft_agents/hosting/msteams/py.typed                | 0
 libraries/microsoft-agents-hosting-msteams/pyproject.toml    | 3 +++
 .../microsoft_agents/hosting/slack/py.typed                  | 0
 libraries/microsoft-agents-hosting-slack/pyproject.toml      | 3 +++
 .../microsoft_agents/hosting/teams/py.typed                  | 0
 libraries/microsoft-agents-hosting-teams/pyproject.toml      | 3 +++
 .../microsoft_agents/storage/blob/py.typed                   | 0
 libraries/microsoft-agents-storage-blob/pyproject.toml       | 3 +++
 .../microsoft_agents/storage/cosmos/py.typed                 | 0
 libraries/microsoft-agents-storage-cosmos/pyproject.toml     | 3 +++
 27 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 libraries/microsoft-agents-activity/microsoft_agents/activity/py.typed
 create mode 100644 libraries/microsoft-agents-authentication-entra-auth-sidecar/microsoft_agents/authentication/entra_auth_sidecar/py.typed
 create mode 100644 libraries/microsoft-agents-authentication-msal/microsoft_agents/authentication/msal/py.typed
 create mode 100644 libraries/microsoft-agents-copilotstudio-client/microsoft_agents/copilotstudio/client/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-aiohttp/microsoft_agents/hosting/aiohttp/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-core/microsoft_agents/hosting/core/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-dialogs/MANIFEST.in
 create mode 100644 libraries/microsoft-agents-hosting-dialogs/microsoft_agents/hosting/dialogs/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-fastapi/microsoft_agents/hosting/fastapi/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-msteams/microsoft_agents/hosting/msteams/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-slack/microsoft_agents/hosting/slack/py.typed
 create mode 100644 libraries/microsoft-agents-hosting-teams/microsoft_agents/hosting/teams/py.typed
 create mode 100644 libraries/microsoft-agents-storage-blob/microsoft_agents/storage/blob/py.typed
 create mode 100644 libraries/microsoft-agents-storage-cosmos/microsoft_agents/storage/cosmos/py.typed

diff --git a/libraries/microsoft-agents-activity/microsoft_agents/activity/py.typed b/libraries/microsoft-agents-activity/microsoft_agents/activity/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-activity/pyproject.toml b/libraries/microsoft-agents-activity/pyproject.toml
index 6b91d44fc..7567228aa 100644
--- a/libraries/microsoft-agents-activity/pyproject.toml
+++ b/libraries/microsoft-agents-activity/pyproject.toml
@@ -24,5 +24,8 @@ dependencies = [
     "pydantic>=2.10.4"
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.activity" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-authentication-entra-auth-sidecar/microsoft_agents/authentication/entra_auth_sidecar/py.typed b/libraries/microsoft-agents-authentication-entra-auth-sidecar/microsoft_agents/authentication/entra_auth_sidecar/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-authentication-entra-auth-sidecar/pyproject.toml b/libraries/microsoft-agents-authentication-entra-auth-sidecar/pyproject.toml
index a65d866a0..7a4a0c373 100644
--- a/libraries/microsoft-agents-authentication-entra-auth-sidecar/pyproject.toml
+++ b/libraries/microsoft-agents-authentication-entra-auth-sidecar/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=64"]
+requires = ["setuptools>=77"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.authentication.entra_auth_sidecar" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-authentication-msal/microsoft_agents/authentication/msal/py.typed b/libraries/microsoft-agents-authentication-msal/microsoft_agents/authentication/msal/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-authentication-msal/pyproject.toml b/libraries/microsoft-agents-authentication-msal/pyproject.toml
index 6a00971ef..e6e4920ea 100644
--- a/libraries/microsoft-agents-authentication-msal/pyproject.toml
+++ b/libraries/microsoft-agents-authentication-msal/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.authentication.msal" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-copilotstudio-client/microsoft_agents/copilotstudio/client/py.typed b/libraries/microsoft-agents-copilotstudio-client/microsoft_agents/copilotstudio/client/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-copilotstudio-client/pyproject.toml b/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
index ebeee8d37..22e066f84 100644
--- a/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
+++ b/libraries/microsoft-agents-copilotstudio-client/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.copilotstudio.client" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-aiohttp/microsoft_agents/hosting/aiohttp/py.typed b/libraries/microsoft-agents-hosting-aiohttp/microsoft_agents/hosting/aiohttp/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml b/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
index 9ebc4b6de..4b5cfe7a7 100644
--- a/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-aiohttp/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.aiohttp" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-core/microsoft_agents/hosting/core/py.typed b/libraries/microsoft-agents-hosting-core/microsoft_agents/hosting/core/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-core/pyproject.toml b/libraries/microsoft-agents-hosting-core/pyproject.toml
index db0b89937..0da3cffa9 100644
--- a/libraries/microsoft-agents-hosting-core/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-core/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.core" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-dialogs/MANIFEST.in b/libraries/microsoft-agents-hosting-dialogs/MANIFEST.in
new file mode 100644
index 000000000..43a71d9ed
--- /dev/null
+++ b/libraries/microsoft-agents-hosting-dialogs/MANIFEST.in
@@ -0,0 +1 @@
+include VERSION.txt
\ No newline at end of file
diff --git a/libraries/microsoft-agents-hosting-dialogs/microsoft_agents/hosting/dialogs/py.typed b/libraries/microsoft-agents-hosting-dialogs/microsoft_agents/hosting/dialogs/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-dialogs/pyproject.toml b/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
index a66e496a6..ec2d145e4 100644
--- a/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-dialogs/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.dialogs" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-fastapi/microsoft_agents/hosting/fastapi/py.typed b/libraries/microsoft-agents-hosting-fastapi/microsoft_agents/hosting/fastapi/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-fastapi/pyproject.toml b/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
index 564cd4442..d92be0bb8 100644
--- a/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-fastapi/pyproject.toml
@@ -16,5 +16,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.fastapi" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
\ No newline at end of file
diff --git a/libraries/microsoft-agents-hosting-msteams/microsoft_agents/hosting/msteams/py.typed b/libraries/microsoft-agents-hosting-msteams/microsoft_agents/hosting/msteams/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-msteams/pyproject.toml b/libraries/microsoft-agents-hosting-msteams/pyproject.toml
index 3e5c580ec..76f2f1494 100644
--- a/libraries/microsoft-agents-hosting-msteams/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-msteams/pyproject.toml
@@ -20,5 +20,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.msteams" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-slack/microsoft_agents/hosting/slack/py.typed b/libraries/microsoft-agents-hosting-slack/microsoft_agents/hosting/slack/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-slack/pyproject.toml b/libraries/microsoft-agents-hosting-slack/pyproject.toml
index 3f1a81780..8b9792dfb 100644
--- a/libraries/microsoft-agents-hosting-slack/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-slack/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.slack" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-hosting-teams/microsoft_agents/hosting/teams/py.typed b/libraries/microsoft-agents-hosting-teams/microsoft_agents/hosting/teams/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-hosting-teams/pyproject.toml b/libraries/microsoft-agents-hosting-teams/pyproject.toml
index 88c539d4d..578e4afc7 100644
--- a/libraries/microsoft-agents-hosting-teams/pyproject.toml
+++ b/libraries/microsoft-agents-hosting-teams/pyproject.toml
@@ -19,5 +19,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.hosting.teams" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-storage-blob/microsoft_agents/storage/blob/py.typed b/libraries/microsoft-agents-storage-blob/microsoft_agents/storage/blob/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-storage-blob/pyproject.toml b/libraries/microsoft-agents-storage-blob/pyproject.toml
index 99781ed3a..1b90b2d63 100644
--- a/libraries/microsoft-agents-storage-blob/pyproject.toml
+++ b/libraries/microsoft-agents-storage-blob/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.storage.blob" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"
diff --git a/libraries/microsoft-agents-storage-cosmos/microsoft_agents/storage/cosmos/py.typed b/libraries/microsoft-agents-storage-cosmos/microsoft_agents/storage/cosmos/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/libraries/microsoft-agents-storage-cosmos/pyproject.toml b/libraries/microsoft-agents-storage-cosmos/pyproject.toml
index 1329af8cf..342167034 100644
--- a/libraries/microsoft-agents-storage-cosmos/pyproject.toml
+++ b/libraries/microsoft-agents-storage-cosmos/pyproject.toml
@@ -21,5 +21,8 @@ classifiers = [
     "Operating System :: OS Independent",
 ]
 
+[tool.setuptools.package-data]
+"microsoft_agents.storage.cosmos" = ["py.typed"]
+
 [project.urls]
 "Homepage" = "https://github.com/microsoft/Agents"

From 072c3c5abe6fe5c1f1039967d693eccda51abf34 Mon Sep 17 00:00:00 2001
From: Rodrigo Brandao <robrandao@microsoft.com>
Date: Thu, 6 Aug 2026 09:23:41 -0700
Subject: [PATCH 3/3] Another commit

---
 changelog.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/changelog.md b/changelog.md
index 9204863aa..41c4835cf 100644
--- a/changelog.md
+++ b/changelog.md
@@ -7,6 +7,9 @@
 ## New Models & APIs
 - **Regionalized UserTokenClient Support**: Added optional argument to `CloudAdapter` to configure Token Service endpoint used by `RestChannelServiceClientFactory` when creating `UserTokenClient` instances. 
 
+## Developer Experience
+- Building packages with `py.typed` files for improved typing support
+
 # Microsoft 365 Agents SDK for Python - Release Notes v1.3.0
 
 **Release Date:** 2026-07-30