@@ -62,7 +62,7 @@ docs/_build/
 # PyBuilder
 target/
 
-#Ipython Notebook
+# Ipython Notebook
 .ipynb_checkpoints
 
 .openapi-generator
 
@@ -14,12 +14,6 @@ stages:
    - pip install -r test-requirements.txt
    - pytest --cov=dropbox_sign
 
-pytest-3.8:
-  extends: .pytest
-  image: python:3.8-alpine
-pytest-3.9:
-  extends: .pytest
-  image: python:3.9-alpine
 pytest-3.10:
   extends: .pytest
   image: python:3.10-alpine
@@ -29,3 +23,9 @@ pytest-3.11:
 pytest-3.12:
   extends: .pytest
   image: python:3.12-alpine
+pytest-3.13:
+  extends: .pytest
+  image: python:3.13-alpine
+pytest-3.14:
+  extends: .pytest
+  image: python:3.14-alpine
@@ -1,13 +1,13 @@
 # ref: https://docs.travis-ci.com/user/languages/python
 language: python
 python:
-  - "3.8"
-  - "3.9"
   - "3.10"
   - "3.11"
   - "3.12"
+  - "3.13"
+  - "3.14"
   # uncomment the following if needed
-  #- "3.12-dev"  # 3.12 development branch
+  #- "3.14-dev"  # 3.14 development branch
   #- "nightly"  # nightly build
 # command to install dependencies
 install:
 
@@ -1,6 +1,19 @@
 # dropbox-sign
 Dropbox Sign v3 API
 
+## Upgrading to 2.0.0
+
+Version 2.0.0 is generated with OpenAPI Generator 7.26.0. Existing code keeps working, with these changes:
+
+- **Python 3.10 or later is required.** Python 3.8 and 3.9 are no longer supported; pip keeps installing 1.x on those versions.
+- **Dependencies:** `urllib3 >= 2.8.0` and `pydantic >= 2.11`.
+- **Proxy settings are now detected automatically.** When `Configuration.proxy` is not set, the SDK uses the proxy configured in the environment (`HTTPS_PROXY`, `HTTP_PROXY`, `ALL_PROXY`) and, on macOS and Windows, the system proxy settings. Previously, a proxy was only used when set explicitly.
+  - To bypass the proxy for the Dropbox Sign API, set `NO_PROXY=hellosign.com` or `configuration.no_proxy = "hellosign.com"`. This covers both `api.hellosign.com` and `app.hellosign.com` (used by the OAuth endpoints).
+  - To ignore all proxy settings, set `configuration.proxy = None` after creating the `Configuration` and before creating the `ApiClient`. Passing `proxy=None` to the constructor does not disable detection.
+  - SOCKS proxies (for example `ALL_PROXY=socks5://...`) require `pip install "urllib3[socks]"`.
+  - Known limitations: the proxy decision is made once per `ApiClient` for the configured host, and macOS/Windows proxy exclusion lists and PAC files are not applied. If you rely on them, set `NO_PROXY` or `configuration.no_proxy` explicitly.
+- **Behaviour changes:** `to_json()` now serializes datetimes, `to_dict()` keeps `None` items in lists, boolean query parameters are sent as `true` / `false`, and the `ApiException` message lists the response body and data separately.
+
 ## Migrating from legacy SDK
 
 This SDK is generated from our officially maintained [OpenAPI spec](https://github.com/hellosign/hellosign-openapi/blob/main/openapi.yaml).
@@ -42,7 +55,7 @@ this command.
 
 ### Requirements.
 
-Python 3.8+
+Python 3.10+
 
 ### pip
 
@@ -406,4 +419,3 @@ This Python package is automatically generated by the [OpenAPI Generator](https:
 - API version: 3.0.0
 - Package version: 1.11-dev
 - Build package: org.openapitools.codegen.languages.PythonClientCodegen
-
 
@@ -8,7 +8,7 @@ Name | Type | Description | Notes
 | `domains`<sup>*_required_</sup> | ```List[str]``` |  The domain names the ApiApp will be associated with.  |  |
 | `name`<sup>*_required_</sup> | ```str``` |  The name you want to assign to the ApiApp.  |  |
 | `callback_url` | ```str``` |  The URL at which the ApiApp should receive event callbacks.  |  |
-| `custom_logo_file` | ```io.IOBase``` |  An image file to use as a custom logo in embedded contexts. (Only applies to some API plans)  |  |
+| `custom_logo_file` | ```bytes``` |  An image file to use as a custom logo in embedded contexts. (Only applies to some API plans)  |  |
 | `oauth` | [```SubOAuth```](SubOAuth.md) |    |  |
 | `options` | [```SubOptions```](SubOptions.md) |    |  |
 | `white_labeling_options` | [```SubWhiteLabelingOptions```](SubWhiteLabelingOptions.md) |    |  |
 
@@ -6,7 +6,7 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 | `callback_url` | ```str``` |  The URL at which the API App should receive event callbacks.  |  |
-| `custom_logo_file` | ```io.IOBase``` |  An image file to use as a custom logo in embedded contexts. (Only applies to some API plans)  |  |
+| `custom_logo_file` | ```bytes``` |  An image file to use as a custom logo in embedded contexts. (Only applies to some API plans)  |  |
 | `domains` | ```List[str]``` |  The domain names the ApiApp will be associated with.  |  |
 | `name` | ```str``` |  The name you want to assign to the ApiApp.  |  |
 | `oauth` | [```SubOAuth```](SubOAuth.md) |    |  |
 
@@ -6,7 +6,7 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 | `detection_mode`<sup>*_required_</sup> | ```str``` |  The field detection method to use. Set to `annotations` to detect PDF form annotations or `text_tags` to detect Dropbox Sign text tags.  |  |
-| `file` | ```io.IOBase``` |  The PDF file to analyze.<br><br>This endpoint requires either `file` or `file_url`, but not both.  |  |
+| `file` | ```bytes``` |  The PDF file to analyze.<br><br>This endpoint requires either `file` or `file_url`, but not both.  |  |
 | `file_url` | ```str``` |  The URL of the PDF file to analyze.<br><br>This endpoint requires either `file` or `file_url`, but not both.  |  |
 | `page_range` | ```str``` |  The zero-based page indexes to analyze. Accepts `all`, individual pages, inclusive ranges, or comma-separated combinations, such as `0-2,5,7-9`. Defaults to `all`.  |  |
 
 
@@ -72,7 +72,7 @@ void (empty response body)
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
 # ```fax_files```
-> ```io.IOBase fax_files(fax_id)```
+> ```bytes fax_files(fax_id)```
 
 Download Fax Files
 
@@ -113,7 +113,7 @@ with ApiClient(configuration) as api_client:
 
 ### Return type
 
-**io.IOBase**
+**bytes**
 
 ### Authorization
 
 
@@ -7,7 +7,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 | `recipient`<sup>*_required_</sup> | ```str``` |  Recipient of the fax  Can be a phone number in E.164 format or email address  |  |
 | `sender` | ```str``` |  Fax Send From Sender (used only with fax number)  |  |
-| `files` | ```List[io.IOBase]``` |  Use `files[]` to indicate the uploaded file(s) to fax<br><br>This endpoint requires either **files** or **file_urls[]**, but not both.  |  |
+| `files` | ```List[bytes]``` |  Use `files[]` to indicate the uploaded file(s) to fax<br><br>This endpoint requires either **files** or **file_urls[]**, but not both.  |  |
 | `file_urls` | ```List[str]``` |  Use `file_urls[]` to have Dropbox Fax download the file(s) to fax<br><br>This endpoint requires either **files** or **file_urls[]**, but not both.  |  |
 | `test_mode` | ```bool``` |  API Test Mode Setting  |  [default to False] |
 | `cover_page_to` | ```str``` |  Fax cover page recipient information  |  |
 
@@ -1078,7 +1078,7 @@ with ApiClient(configuration) as api_client:
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
 # ```signature_request_files```
-> ```io.IOBase signature_request_files(signature_request_id)```
+> ```bytes signature_request_files(signature_request_id)```
 
 Download Files
 
@@ -1124,11 +1124,11 @@ with ApiClient(configuration) as api_client:
 | Name | Type | Description | Notes |
 | ---- | ---- | ----------- | ----- |
 | `signature_request_id` | **str** | The id of the SignatureRequest to retrieve. |  |
-| `file_type` | **str** | Set to `pdf` for a single merged document or `zip` for a collection of individual documents. | [optional][default to pdf] |
+| `file_type` | **str** | Set to `pdf` for a single merged document or `zip` for a collection of individual documents. | [optional][default to &#39;pdf&#39;] |
 
 ### Return type
 
-**io.IOBase**
+**bytes**
 
 ### Authorization