diff --git a/doc/deprecation_process.md b/doc/deprecation_process.md
index dcac872088cb..d759a669f464 100644
--- a/doc/deprecation_process.md
+++ b/doc/deprecation_process.md
@@ -67,7 +67,7 @@ Replace ALL existing text with a disclaimer in the following format.
 ## CHANGELOG.md and _version.py
 
 - Update the version in the `azure/mypackage/_version.py` file. The new version should be:
-  - A [post-release](https://peps.python.org/pep-0440/#post-releases) of the last released version **only if** this deprecation release contains no code changes (i.e. the only updates are to metadata files such as `README.md`, `CHANGELOG.md`, `setup.py` classifiers, `sdk_packaging.toml`, `ci.yml`, etc.). If the last released version is already a post-release, increment the existing post segment instead of appending another `.post1`. For example:
+  - A [post-release](https://peps.python.org/pep-0440/#post-releases) of the last released version **only if** this deprecation release contains no code changes (i.e. the only updates are to metadata files such as `README.md`, `CHANGELOG.md`, `pyproject.toml` classifiers, `sdk_packaging.toml`, `ci.yml`, etc.). If the last released version is already a post-release, increment the existing post segment instead of appending another `.post1`. For example:
     - If the last released version was 1.0.0b1, the new version should be 1.0.0b1.post1.
     - If the last released version was 1.0.0b1.post1, the new version should be 1.0.0b1.post2.
     - If the last released version was 1.2.3, the new version should be 1.2.3.post1.
@@ -96,12 +96,9 @@ Replace ALL existing text with a disclaimer in the following format.
 ## pyproject.toml
 
 - Ensure `ci_enabled = false` is NOT present in pyproject.toml. If it is, remove the line, as this will prevent you from releasing the package.
-
-## setup.py
-
-- Update the `Development Status` classifier in `setup.py` to `Development Status :: 7 - Inactive`.
+- Update the `Development Status` classifier in `pyproject.toml` to `Development Status :: 7 - Inactive`.
   - `Inactive` packages are disabled from most CI verification such as tests/mypy/pylint/etc., therefore the CI should be faster and have fewer requirements.
- 
+
 ## ci.yml
 
 - Ensure the package is listed under `Artifacts` so that the artifact is generated for release. If not listed, add it.
diff --git a/doc/dev/changelog_updates.md b/doc/dev/changelog_updates.md
index c39d8d49e25e..dfe2ef9dca73 100644
--- a/doc/dev/changelog_updates.md
+++ b/doc/dev/changelog_updates.md
@@ -107,7 +107,7 @@ npx chronus status
 
 ## Packages Using `pyproject.toml`
 
-Packages in this repository that use `pyproject.toml` (instead of or alongside `setup.py`) are fully supported by Chronus. The `pyproject.toml` is used for package metadata, while the `CHANGELOG.md` in the package directory remains the canonical user-facing changelog.
+Packages in this repository that use `pyproject.toml` are fully supported by Chronus. The `pyproject.toml` is used for package metadata, while the `CHANGELOG.md` in the package directory remains the canonical user-facing changelog.
 
 Chronus reads the package version from the Python package metadata and writes changelog entries into the `CHANGELOG.md` file with `npx chronus changelog`. You do not need to manually edit `CHANGELOG.md` for your changes.
 
diff --git a/doc/dev/dataplane_generation.md b/doc/dev/dataplane_generation.md
index f01e2877faa5..af2f33999c9b 100644
--- a/doc/dev/dataplane_generation.md
+++ b/doc/dev/dataplane_generation.md
@@ -53,7 +53,7 @@ Normally, the folder structure would be something like:
   - `/tests`: folder of test files
   - `/samples`: folder of sample files
   - `azure-{service_name}-{module_name}`: package name. Usually, package name is same with part of **${PROJECT_ROOT} folder**. After release, you can find it in pypi. For example: you can find [azure-messaging-webpubsubservice](https://github.com/Azure/azure-sdk-for-python/tree/main/sdk/webpubsub/azure-messaging-webpubsubservice) in [pypi](https://pypi.org/project/azure-messaging-webpubsubservice/).
-  - there are also some other files (like setup.py, README.md, etc.) which are necessary for a complete package.
+  - there are also some other files (like `pyproject.toml`, README.md, etc.) which are necessary for a complete package.
 
 More details on the structure of Azure SDK repos is available in the [Azure SDK common repo](https://github.com/Azure/azure-sdk/blob/main/docs/policies/repostructure.md#sdk-directory-layout).
 
diff --git a/doc/dev/packaging.md b/doc/dev/packaging.md
index 64ea4e64c43f..3e6a8ee8031d 100644
--- a/doc/dev/packaging.md
+++ b/doc/dev/packaging.md
@@ -2,6 +2,8 @@
 
 [comment]: # ( cspell:ignore myservice )
 
+> **Note:** This document covers legacy packaging using `setup.py`. New packages should use `pyproject.toml` instead. See the [`sdk/template/azure-template`](https://github.com/Azure/azure-sdk-for-python/tree/main/sdk/template/azure-template) for the current package template.
+
 This article describes the recommendations for defining namespace packaging to release a package inside the `azure` namespace. Being inside the `azure` namespace means that a service `myservice` can be imported using:
 ```python
 import azure.myservice
diff --git a/doc/dev/static_type_checking.md b/doc/dev/static_type_checking.md
index a1b2bc731263..433f7823c37f 100644
--- a/doc/dev/static_type_checking.md
+++ b/doc/dev/static_type_checking.md
@@ -114,7 +114,11 @@ given the expressiveness of Python as a language. So, in practice, what should y
     - include the path to the `py.typed` in the
       MANIFEST.in ([example](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/core/azure-core/MANIFEST.in)).
       This is important as it ensures the `py.typed` is included in both the sdist/bdist.
-    - set `include_package_data=True` and `package_data={"azure.core": ["py.typed"]}` in the setup.py.
+    - set `[tool.setuptools.package-data]` in `pyproject.toml` to include the `py.typed` file. For example:
+      ```toml
+      [tool.setuptools.package-data]
+      "azure.core" = ["py.typed"]
+      ```
       Note that the key should be the namespace of where the `py.typed` file is found.
 
 2) Add type hints anywhere in the source code where unit tests are worth writing. Consider typing/mypy as "free" tests
@@ -173,7 +177,7 @@ class Tree:
 ```
 
 If using `typing-extensions`, you must add it to the install dependencies for your library (do not rely on install by `azure-core`)
-[[example](https://github.com/Azure/azure-sdk-for-python/blob/5fd52b9ee039f8711322bd7ea43af763d326291a/sdk/eventhub/azure-eventhub/setup.py#L73)].
+[[example](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/eventhub/azure-eventhub/pyproject.toml#L27)].
 When importing a backported type into code, `typing-extensions` does a try/except on your behalf (either importing
 from `typing` if supported, or `typing-extensions` if the Python version is too old) so there is no need to do this
 check yourself.
@@ -196,7 +200,7 @@ environment run in CI and brings in the third party stub packages necessary. To
 
 ### Run mypy
 
-mypy is currently pinned to version [1.9.0](https://pypi.org/project/mypy/1.9.0/).
+mypy is currently pinned to version [1.19.1](https://pypi.org/project/mypy/1.19.1/).
 
 To run mypy on your library, run `azpysdk mypy` at the package level:
 
@@ -204,7 +208,7 @@ To run mypy on your library, run `azpysdk mypy` at the package level:
 
 If you don't want to use `azpysdk` you can also install and run mypy on its own:
 
-`pip install mypy==1.9.0`
+`pip install mypy==1.19.1`
 
 `.../azure-sdk-for-python/sdk/textanalytics/azure-ai-textanalytics>mypy azure`
 
@@ -226,7 +230,7 @@ Full documentation on mypy config options found here: https://mypy.readthedocs.i
 
 ### Run pyright
 
-We pin the version of pyright to version [1.1.287](https://github.com/microsoft/pyright).
+We pin the version of pyright to version [1.1.407](https://github.com/microsoft/pyright).
 
 Note that pyright requires that node is installed. The command-line [wrapper package](https://pypi.org/project/pyright/) for pyright will check if node is in the `PATH`, and if not, will download it at runtime.
 
@@ -236,7 +240,7 @@ To run pyright on your library, run `azpysdk pyright` at the package level:
 
 If you don't want to use `azpysdk` you can also install and run pyright on its own:
 
-`pip install pyright==1.1.287`
+`pip install pyright==1.1.407`
 
 `.../azure-sdk-for-python/sdk/textanalytics/azure-ai-textanalytics>pyright azure`
 
@@ -268,7 +272,7 @@ To run verifytypes on your library, run `azpysdk verifytypes` at the package lev
 
 If you don't want to use `azpysdk` you can also install and run pyright/verifytypes on its own:
 
-`pip install pyright==1.1.287`
+`pip install pyright==1.1.407`
 
 `.../azure-sdk-for-python/sdk/textanalytics/azure-ai-textanalytics>pyright --verifytypes azure.ai.textanalytics --ignoreexternal`
 
diff --git a/doc/dev/tests.md b/doc/dev/tests.md
index 4e3bb6bfcf47..5366b5c3426b 100644
--- a/doc/dev/tests.md
+++ b/doc/dev/tests.md
@@ -57,8 +57,7 @@ In the root directory of our SDK, a number of mandatory files have been added. W
 
 - README.md. This is the description and guidance for customers or your SDK. Please see the guide on writing a README to make sure you have the complete [content requirements and formatting](https://review.learn.microsoft.com/help/platform/reference-document-sdk-client-libraries#readme).
 - CHANGELOG.md. This is where you will add the summary of changes for each new release. Please see [the guidance](https://azure.github.io/azure-sdk/policies_releases.html#changelog-guidance) for correct formatting.
-- setup.py. This is the 'installer' for your Python SDK. Please see [the guide on Python packaging][packaging] for details on customizing this for a specific package.
-- setup.cfg. This is an artifact used in building the Python package. Please see [the guide on Python packaging][packaging] for details.
+- pyproject.toml. This is the package configuration file for your Python SDK. Please see [the guide on Python packaging][packaging] for details on customizing this for a specific package.
 - MANIFEST.in. This is an artifact used in building the Python package. Please see [the guide on Python packaging][packaging] for details.
 - dev_requirements.txt. This is for developers, and lists the packages required for running the tests and samples. See the dependency installation section below.
 - sdk_packaging.toml. This configuration is used by the packaging pipeline and no further modifications should be required.
diff --git a/doc/eng_sys_checks.md b/doc/eng_sys_checks.md
index 28839bf6d6af..9b1a4ccc5427 100644
--- a/doc/eng_sys_checks.md
+++ b/doc/eng_sys_checks.md
@@ -108,7 +108,7 @@ Setting any of the following variables to `true` at queue time suppresses the co
 
 ## The pyproject.toml
 
-Starting with [this pr](https://github.com/Azure/azure-sdk-for-python/pull/28345), which checks apply to which packages are now **established** in a `pyproject.toml`, right next to each package's `setup.py`. This not only allows devs to fine-tune which checks that are applied at a package-level, but also seriously reduces confusion as to which checks apply when.
+Starting with [this pr](https://github.com/Azure/azure-sdk-for-python/pull/28345), which checks apply to which packages are now **established** in a `pyproject.toml`. This not only allows devs to fine-tune which checks that are applied at a package-level, but also seriously reduces confusion as to which checks apply when.
 
 We default to **enabling** most of our checks like `pylint`, `mypy`, etc. Due to that, most `pyproject.toml` settings will likely be **disabling** checks.
 
@@ -176,7 +176,7 @@ analyze_python_version = "3.11"
 
 This setting is read by `eng/scripts/dispatch_checks.py` and is passed to `azpysdk` via the `--python` flag (which requires `--isolate` and `uv`). This is useful for packages that use newer syntax or type features that require a more recent Python interpreter.
 
-> **Note:** This setting only affects the Python interpreter version used for the analyze venv; it does not change the minimum supported Python version declared in `setup.py`/`pyproject.toml`.
+> **Note:** This setting only affects the Python interpreter version used for the analyze venv; it does not change the minimum supported Python version declared in `pyproject.toml`.
 
 ## Environment variables important to CI
 
@@ -402,7 +402,7 @@ azpysdk verifywhl .
 
 <a name="verifysdist"></a>
 
-Verifies that directories included in the sdist match the manifest file, and ensures that `py.typed` configuration is correct within `setup.py`.
+Verifies that directories included in the sdist match the manifest file, and ensures that `py.typed` configuration is correct within `pyproject.toml`.
 
 To run locally:
 
@@ -414,7 +414,7 @@ azpysdk verifysdist .
 
 <a name="verify-keywords"></a>
 
-Verifies that the keyword `azure sdk` is present in the targeted package's `keywords` field (in `setup.py` or `pyproject.toml`). This ensures consistent discovery on PyPI.
+Verifies that the keyword `azure sdk` is present in the targeted package's `keywords` field (in `pyproject.toml`). This ensures consistent discovery on PyPI.
 
 To run locally:
 
@@ -458,7 +458,7 @@ azpysdk sdist .
 
 <a name="mindependency"></a>
 
-For each Azure SDK dependency declared in `setup.py` (dev-only requirements are excluded), this check resolves the **oldest** published version available on PyPI that satisfies the requirement range, installs it in place of the in-repo dev version, and then runs the full test suite. This confirms that the package works across the full declared version range — not just against the latest release.
+For each Azure SDK dependency declared in `pyproject.toml` (dev-only requirements are excluded), this check resolves the **oldest** published version available on PyPI that satisfies the requirement range, installs it in place of the in-repo dev version, and then runs the full test suite. This confirms that the package works across the full declared version range — not just against the latest release.
 
 To run locally:
 
@@ -474,7 +474,7 @@ The following checks are the additional entries in `FULL_BUILD_SET` beyond the P
 
 <a name="import-all"></a>
 
-The `import_all` check ensures all modules in a target package can be successfully imported. Installing and importing verifies that all package requirements are properly set in `setup.py`/`pyproject.toml` and that the `__all__` for the package is properly defined. This test installs the package and its required packages, then executes `from <package-root-namespace> import *`. For example from `azure-core`, the following would be invoked: `from azure.core import *`.
+The `import_all` check ensures all modules in a target package can be successfully imported. Installing and importing verifies that all package requirements are properly set in `pyproject.toml` and that the `__all__` for the package is properly defined. This test installs the package and its required packages, then executes `from <package-root-namespace> import *`. For example from `azure-core`, the following would be invoked: `from azure.core import *`.
 
 To run locally:
 
@@ -498,7 +498,7 @@ azpysdk whl_no_aio .
 
 <a name="latest-dependency-test"></a>
 
-For each Azure SDK dependency declared in `setup.py`/`pyproject.toml` (dev-only requirements are excluded), this check resolves the **latest** published version available on PyPI that satisfies the requirement range, installs it in place of the in-repo dev version, and then runs the full test suite. This confirms that the package works with the newest available version of each of its dependencies.
+For each Azure SDK dependency declared in `pyproject.toml` (dev-only requirements are excluded), this check resolves the **latest** published version available on PyPI that satisfies the requirement range, installs it in place of the in-repo dev version, and then runs the full test suite. This confirms that the package works with the newest available version of each of its dependencies.
 
 To run locally:
 
diff --git a/doc/tool_usage_guide.md b/doc/tool_usage_guide.md
index e36b59f6b7f5..762c25d9fa68 100644
--- a/doc/tool_usage_guide.md
+++ b/doc/tool_usage_guide.md
@@ -24,7 +24,7 @@ The following checks are available via the `azpysdk` entrypoint.
 |`apistub`| Generates `api.md`, API metadata, or APIView token files for the package. | `azpysdk apistub .` |
 |`bandit`| Runs `bandit` checks, which detect common security issues. | `azpysdk bandit .` |
 |`verifywhl`| Verifies that the root directory in whl is azure, and verifies manifest so that all directories in source are included in sdist. | `azpysdk verifywhl .` |
-|`verifysdist`| Verify directories included in sdist and contents in manifest file. Also ensures that py.typed configuration is correct within the setup.py. | `azpysdk verifysdist .` |
+|`verifysdist`| Verify directories included in sdist and contents in manifest file. Also ensures that py.typed configuration is correct within `pyproject.toml`. | `azpysdk verifysdist .` |
 |`verify_keywords`| Verify that the keyword 'azure sdk' is present in the targeted package's keywords. | `azpysdk verify_keywords .` |
 |`import_all`| Installs the package w/ default dependencies, then attempts to `import *` from the base namespace. Ensures that all imports will resolve after a base install and import. | `azpysdk import_all .` |
 |`generate`| Regenerates the code. | `azpysdk generate .` |