# Release History

## 1.35.0 (Unreleased)

### Features Added

- Added a `start_time` keyword argument to the `start_span` and `start_as_current_span` methods in the `OpenTelemetryTracer` class. This allows users to specify a custom start time for created spans. #41106

### Breaking Changes

### Bugs Fixed

### Other Changes

- A timeout error when using the `aiohttp` transport (the default for async SDKs) will now be raised as a `azure.core.exceptions.ServiceResponseTimeoutError`, a subtype of the previously raised `ServiceResponseError`.
- When using with `aiohttp` 3.10 or later, a connection timeout error will now be raised as a `azure.core.exceptions.ServiceRequestTimeoutError`, which can be retried.

## 1.34.0 (2025-05-01)

### Features Added

- Added a `set_span_error_status` method to the `OpenTelemetryTracer` class. This method allows users to set the status of a span to `ERROR` after it has been created. #40703

### Other Changes

- Python 3.8 is no longer supported. Please use Python version 3.9 or later.

## 1.33.0 (2025-04-03)

### Features Added

- Added native OpenTelemetry tracing to Azure Core which enables users to use OpenTelemetry to trace Azure SDK operations without needing to install a plugin. #39563
    - To enable native OpenTelemetry tracing, users need to:
        1. Have `opentelemetry-api` installed.
        2. Ensure that `settings.tracing_implementation` is not set.
        3. Ensure that `settings.tracing_enabled` is set to `True`.
    - If `setting.tracing_implementation` is set, the tracing plugin will be used instead of the native tracing.
    - If `settings.tracing_enabled` is set to `False`, tracing will be disabled.
    - The `OpenTelemetryTracer` class was added to the `azure.core.tracing.opentelemetry` module. This is a wrapper around the OpenTelemetry tracer that is used to create spans for Azure SDK operations.
    - Added a `get_tracer` method to the new `azure.core.instrumentation` module. This method returns an instance of the `OpenTelemetryTracer` class if OpenTelemetry is available.
    - A `TracingOptions` TypedDict class was added to define the options that SDK users can use to configure tracing per-operation. These options include the ability to enable or disable tracing and set additional attributes on spans.
        - Example usage: `client.method(tracing_options={"enabled": True, "attributes": {"foo": "bar"}})`
    - The `DistributedTracingPolicy` and `distributed_trace`/`distributed_trace_async` decorators now uses the OpenTelemetry tracer if it is available and native tracing is enabled.
        - SDK clients can define an `_instrumentation_config` class variable to configure the OpenTelemetry tracer used in method span creation. Possible configuration options are `library_name`, `library_version`, `schema_url`, and `attributes`.
        - `DistributedTracingPolicy` now accepts a `instrumentation_config` keyword argument to configure the OpenTelemetry tracer used in HTTP span creation.

### Breaking Changes

- Removed automatic tracing enablement for the OpenTelemetry plugin if `opentelemetry` was imported. To enable tracing with the plugin, please import `azure.core.settings.settings` and set `settings.tracing_implementation` to `"opentelemetry"`. #39563
- In `DistributedTracingPolicy`, the default span name is now just the HTTP method (e.g., "GET", "POST") and no longer includes the URL path. This change was made to converge with the OpenTelemetry HTTP semantic conventions. The full URL is still included in the span attributes.
- Renamed span attributes in `DistributedTracingPolicy`:
    - "x-ms-client-request-id" is now "az.client_request_id"
    - "x-ms-request-id" is now "az.service_request_id"

### Bugs Fixed

- Fixed an issue where the `traceparent` header was not being set correctly in the `DistributedTracingPolicy`. The `traceparent` header will now set based on the context of the HTTP client span. #40074

### Other Changes

- Added `opentelemetry-api` as an optional dependency for tracing. This can be installed with `pip install azure-core[tracing]`. #39563

## 1.32.0 (2024-10-31)

### Features Added

- Added a default implementation to handle token challenges in `BearerTokenCredentialPolicy` and `AsyncBearerTokenCredentialPolicy`.

### Bugs Fixed

- Fixed an issue where the `tracing_attributes` keyword argument wasn't being handled at the request/method level. #38164

### Other Changes

- Log "x-vss-e2eid" and "x-msedge-ref" headers in `HttpLoggingPolicy`.

## 1.31.0 (2024-09-12)

### Features Added

- Added azure.core.AzureClouds enum to represent the different Azure clouds.
- Added two new credential protocol classes, `SupportsTokenInfo` and `AsyncSupportsTokenInfo`, to offer more extensibility in supporting various token acquisition scenarios. #36565
  - Each new protocol class defines a `get_token_info` method that returns an `AccessTokenInfo` object.
- Added a new `TokenRequestOptions` class, which is a `TypedDict` with optional parameters, that can be used to define options for token requests through the `get_token_info` method. #36565
- Added a new `AccessTokenInfo` class, which is returned by `get_token_info` implementations. This class contains the token, its expiration time, and optional additional information like when a token should be refreshed. #36565
- `BearerTokenCredentialPolicy` and `AsyncBearerTokenCredentialPolicy` now first check if a credential has the `get_token_info` method defined. If so, the `get_token_info` method is used to acquire a token. Otherwise, the `get_token` method is used. #36565
  - These policies now also check the `refresh_on` attribute when determining if a new token request should be made.

### Other Changes

- The Azure Core OpenTelemetry tracing plugin will now be the preferred tracing plugin over the OpenCensus plugin. If both plugins are installed and `opentelemetry` is imported, then OpenTelemetry will be used to trace Azure SDK operations.  #35050

## 1.30.2 (2024-06-06)

### Features Added

- Tracing: `DistributedTracingPolicy` will now set an attribute, `http.request.resend_count`, on HTTP spans for resent requests to indicate the resend attempt number.  #35069

### Bugs Fixed

- Raise correct exception if transport is used while already closed  #35559

### Other Changes

- HTTP tracing spans will now include an `error.type` attribute if an error status code is returned.  #34619
- Minimum required Python version is now 3.8

## 1.30.1 (2024-02-29)

### Other Changes

- Accept float for `retry_after` header.  #34203

## 1.30.0 (2024-02-01)

### Features Added

- Support tuple input for file values  to `azure.core.rest.HttpRequest`  #33948
- Support tuple input to `files` with duplicate field names  `azure.core.rest.HttpRequest`  #34021

## 1.29.7 (2024-01-18)

### Other Changes

- Removed dependency on `anyio`.  #33282

## 1.29.6 (2023-12-14)

### Bugs Fixed

- Adjusted `AsyncBearerTokenCredentialPolicy` to work properly with `trio` concurrency mechanisms.   ([#33307](https://github.com/Azure/azure-sdk-for-python/pull/33307))

### Other Changes

- Added dependency on `anyio` >=3.0,<5.0
- Bumped minimum dependency on `requests` to 2.21.0.

## 1.29.5 (2023-10-19)

### Bugs Fixed

- Fixed an issue with `multipart/form-data` in the async transport where `data` was not getting encoded into the request body. #32473

### Other Changes

- Use ssl context from aiohttp by default.

## 1.29.4 (2023-09-07)

### Bugs Fixed

- Fixed the issue that some urls trigger an infinite loop. #31346
- Fixed issue where IndexError was raised if multipart responses did not match the number of requests. #31471
- Fixed issue unbound variable exception if dict is invalid in CloudEvent.from_dict. #31835
- Fixed issue asyncBearerTokenCredentialPolicy is not backward compatible with SansIOHTTPPolicy. #31836
- Fixed issue mypy complains with new version of azure-core. #31564

## 1.29.3 (2023-08-22)

### Bugs Fixed

- Typing fix: `message` cannot be `None` in `AzureError`. #31564

## 1.29.2 (2023-08-14)

### Bugs Fixed

- Added a default implementation for `AsyncTokenCredential.__aexit__()` #31573

### Other Changes

- Bumped `typing-extensions` version to 4.6.0.

## 1.29.1 (2023-08-09)

### Bugs Fixed

- Not pass `enabled_cae` unless it is explicitly enabled.

## 1.29.0 (2023-08-03)

### Features Added

- A keyword argument `enable_cae` was added to the `get_token` method of the `TokenCredential` protocol.  #31012
- `BearerTokenCredentialPolicy` and `AsyncBearerTokenCredentialPolicy` now accept `enable_cae` keyword arguments in their constructors. This is used in determining if [Continuous Access Evaluation (CAE)](https://learn.microsoft.com/azure/active-directory/conditional-access/concept-continuous-access-evaluation) should be enabled for each `get_token` request.  #31012

## 1.28.0 (2023-07-06)

### Features Added

- Added header name parameter to `RequestIdPolicy`. #30772
- Added `SensitiveHeaderCleanupPolicy` that cleans up sensitive headers if a redirect happens and the new destination is in another domain. #28349

### Other Changes

- Catch aiohttp errors and translate them into azure-core errors.

## 1.27.1 (2023-06-13)

### Bugs Fixed

- Fix url building for some complex query parameters scenarios  #30707

## 1.27.0 (2023-06-01)

### Features Added

- Added support to use sync credentials in `AsyncBearerTokenCredentialPolicy`. #30381
- Added "prefix" parameter to AzureKeyCredentialPolicy #29901

### Bugs Fixed

- Improve error message when providing the wrong credential type for AzureKeyCredential  #30380

## 1.26.4 (2023-04-06)

### Features Added

- Updated settings to include OpenTelemetry as a tracer provider.  #29095

### Other Changes

- Improved typing

## 1.26.3 (2023-02-02)

### Bugs Fixed

- Fixed deflate decompression for aiohttp   #28483

## 1.26.2 (2023-01-05)

### Bugs Fixed

- Fix 'ClientSession' object has no attribute 'auto_decompress'  (thanks to @mghextreme for the contribution)

### Other Changes

- Add "x-ms-error-code" as secure header to log
- Rename "DEFAULT_HEADERS_WHITELIST" to "DEFAULT_HEADERS_ALLOWLIST". Added a backward compatible alias.

## 1.26.1 (2022-11-03)

### Other Changes

- Added example of RequestsTransport with custom session.  (thanks to @inirudebwoy for the contribution)   #26768
- Added Python 3.11 support.

## 1.26.0 (2022-10-06)

### Other Changes

- LRO polling will not wait anymore before doing the first status check  #26376
- Added extra dependency for [aio]. pip install azure-core[aio] installs aiohttp too.

## 1.25.1 (2022-09-01)

### Bugs Fixed

- Added @runtime_checkable to `TokenCredential` protocol definitions  #25187

## 1.25.0 (2022-08-04)

Azure-core is supported on Python 3.7 or later. For more details, please read our page on [Azure SDK for Python version support policy](https://github.com/Azure/azure-sdk-for-python/wiki/Azure-SDKs-Python-version-support-policy).

### Features Added

- Added `CaseInsensitiveDict` implementation in `azure.core.utils` removing dependency on `requests` and `aiohttp`

## 1.24.2 (2022-06-30)

### Bugs Fixed

- Fixed the bug that azure-core could not be imported under Python 3.11.0b3  #24928
- `ContentDecodePolicy` can now correctly deserialize more JSON bodies with different mime types #22410

## 1.24.1 (2022-06-01)

### Bugs Fixed

- Declare method level span as INTERNAL by default  #24492
- Fixed type hints for `azure.core.paging.ItemPaged` #24548

## 1.24.0 (2022-05-06)

### Features Added

- Add `SerializationError` and `DeserializationError` in `azure.core.exceptions` for errors raised during serialization / deserialization  #24312

## 1.23.1 (2022-03-31)

### Bugs Fixed

- Allow stream inputs to the `content` kwarg of `azure.core.rest.HttpRequest` from objects with a `read` method  #23578

## 1.23.0 (2022-03-03)

### Features Added

- Improve intellisense type hinting for service client methods. #22891

- Add a case insensitive dict `case_insensitive_dict` in `azure.core.utils`.  #23206

### Bugs Fixed

- Use "\n" rather than "/n" for new line in log.     #23261

### Other Changes

- Log "WWW-Authenticate" header in `HttpLoggingPolicy`  #22990
- Added dependency on `typing-extensions` >= 4.0.1

## 1.22.1 (2022-02-09)

### Bugs Fixed

- Limiting `final-state-via` scope to POST until consuming SDKs has been fixed to use this option properly on PUT.  #22989

## 1.22.0 (2022-02-03)
_[**This version is deprecated.**]_

### Features Added

- Add support for `final-state-via` LRO option in core.  #22713

### Bugs Fixed

- Add response body to string representation of `HttpResponseError` if we're not able to parse out information #22302
- Raise `AttributeError` when calling azure.core.pipeline.transport.\_\_bases__    #22469

### Other Changes

- Python 2.7 is no longer supported. Please use Python version 3.6 or later.

## 1.21.1 (2021-12-06)

### Other Changes

- Revert change in str method  #22023

## 1.21.0 (2021-12-02)

### Breaking Changes

- Sync stream downloading now raises `azure.core.exceptions.DecodeError` rather than `requests.exceptions.ContentDecodingError`

### Bugs Fixed

- Add response body to string representation of `HttpResponseError` if we're not able to parse out information #21800

## 1.20.1 (2021-11-08)

### Bugs Fixed

- Correctly set response's content to decompressed body when users are using aiohttp transport with decompression headers #21620

## 1.20.0 (2021-11-04)

### Features Added

- GA `send_request` onto the `azure.core.PipelineClient` and `azure.core.AsyncPipelineClient`. This method takes in
requests and sends them through our pipelines.
- GA `azure.core.rest`. `azure.core.rest` is our new public simple HTTP library in `azure.core` that users will use to create requests, and consume responses.
- GA errors `StreamConsumedError`, `StreamClosedError`, and `ResponseNotReadError` to `azure.core.exceptions`. These errors
are thrown if you mishandle streamed responses from the `azure.core.rest` module
- add kwargs to the methods for `iter_raw` and `iter_bytes`  #21529
- no longer raise JSON errors if users pass in file descriptors of JSON to the `json` kwarg in `HttpRequest`  #21504
- Added new error type `IncompleteReadError` which is raised if peer closes the connection before we have received the complete message body.

### Breaking Changes

- SansIOHTTPPolicy.on_exception returns None instead of bool.

### Bugs Fixed

- The `Content-Length` header in a http response is strictly checked against the actual number of bytes in the body,
  rather than silently truncating data in case the underlying tcp connection is closed prematurely.
  (thanks to @jochen-ott-by for the contribution)   #20412
- UnboundLocalError when SansIOHTTPPolicy handles an exception    #15222
- Add default content type header of `text/plain` and content length header for users who pass unicode strings to the `content` kwarg of `HttpRequest` in 2.7  #21550

## 1.19.1 (2021-11-01)

### Bugs Fixed

- respect text encoding specified in argument (thanks to @ryohji for the contribution)  #20796
- Fix "coroutine x.read() was never awaited" warning from `ContentDecodePolicy`  #21318
- fix type check for `data` input to `azure.core.rest` for python 2.7 users  #21341
- use `charset_normalizer` if `chardet` is not installed to migrate aiohttp 3.8.0 changes.

### Other Changes

- Refactor AzureJSONEncoder (thanks to @Codejune for the contribution)  #21028

## 1.19.0 (2021-09-30)

### Breaking Changes in the Provisional `azure.core.rest` package

- `azure.core.rest.HttpResponse` and `azure.core.rest.AsyncHttpResponse` are now abstract base classes. They should not be initialized directly, instead
your transport responses should inherit from them and implement them.
- The properties of the `azure.core.rest` responses are now all read-only

- HttpLoggingPolicy integrates logs into one record #19925

## 1.18.0 (2021-09-02)

### Features Added

- `azure.core.serialization.AzureJSONEncoder` (introduced in 1.17.0) serializes `datetime.datetime` objects in ISO 8601 format, conforming to RFC 3339's specification.    #20190
- We now use `azure.core.serialization.AzureJSONEncoder` to serialize `json` input to `azure.core.rest.HttpRequest`.

### Breaking Changes in the Provisional `azure.core.rest` package

- The `text` property on `azure.core.rest.HttpResponse` and `azure.core.rest.AsyncHttpResponse` has changed to a method, which also takes
an `encoding` parameter.
- Removed `iter_text` and `iter_lines` from `azure.core.rest.HttpResponse` and `azure.core.rest.AsyncHttpResponse`

### Bugs Fixed

- The behaviour of the headers returned in `azure.core.rest` responses now aligns across sync and async. Items can now be checked case-insensitively and without raising an error for format.

## 1.17.0 (2021-08-05)

### Features Added

- Cut hard dependency on requests library
- Added a `from_json` method which now accepts storage QueueMessage, eventhub's EventData or ServiceBusMessage or simply json bytes to return a `CloudEvent`

### Fixed

- Not override "x-ms-client-request-id" if it already exists in the header.    #17757

### Breaking Changes in the Provisional `azure.core.rest` package

- `azure.core.rest` will not try to guess the `charset` anymore if it was impossible to extract it from `HttpResponse` analysis. This removes our dependency on `charset`.

## 1.16.0 (2021-07-01)

### Features Added

- Add new ***provisional*** methods `send_request` onto the `azure.core.PipelineClient` and `azure.core.AsyncPipelineClient`. This method takes in
requests and sends them through our pipelines.
- Add new ***provisional*** module `azure.core.rest`. `azure.core.rest` is our new public simple HTTP library in `azure.core` that users will use to create requests, and consume responses.
- Add new ***provisional*** errors `StreamConsumedError`, `StreamClosedError`, and `ResponseNotReadError` to `azure.core.exceptions`. These errors
are thrown if you mishandle streamed responses from the provisional `azure.core.rest` module

### Fixed

- Improved error message in the `from_dict` method of `CloudEvent` when a wrong schema is sent.

## 1.15.0 (2021-06-04)

### New Features

- Added `BearerTokenCredentialPolicy.on_challenge` and `.authorize_request` to allow subclasses to optionally handle authentication challenges

### Bug Fixes

- Retry policies don't sleep after operations time out
- The `from_dict` methhod in the `CloudEvent` can now convert a datetime string to datetime object when microsecond exceeds the python limitation

## 1.14.0 (2021-05-13)

### New Features

- Added `azure.core.credentials.AzureNamedKeyCredential` credential #17548.
- Added `decompress` parameter for `stream_download` method. If it is set to `False`, will not do decompression upon the stream.    #17920

## 1.13.0 (2021-04-02)

Azure core requires Python 2.7 or Python 3.6+ since this release.

### New Features

- Added `azure.core.utils.parse_connection_string` function to parse connection strings across SDKs, with common validation and support for case insensitive keys.
- Supported adding custom policies  #16519
- Added `~azure.core.tracing.Link` that should be used while passing `Links` to  `AbstractSpan`.
- `AbstractSpan` constructor can now take in additional keyword only args.

### Bug fixes

- Make NetworkTraceLoggingPolicy show the auth token in plain text. #14191
- Fixed RetryPolicy overriding default connection timeout with an extreme value #17481

## 1.12.0 (2021-03-08)

This version will be the last version to officially support Python 3.5, future versions will require Python 2.7 or Python 3.6+.

### Features

- Added `azure.core.messaging.CloudEvent` model that follows the cloud event spec.
- Added `azure.core.serialization.NULL` sentinel value
- Improve `repr`s for `HttpRequest` and `HttpResponse`s  #16972

### Bug Fixes

- Disable retry in stream downloading. (thanks to @jochen-ott-by @hoffmann for the contribution)  #16723

## 1.11.0 (2021-02-08)

### Features

- Added `CaseInsensitiveEnumMeta` class for case-insensitive enums.  #16316
- Add `raise_for_status` method onto `HttpResponse`. Calling `response.raise_for_status()` on a response with an error code
will raise an `HttpResponseError`. Calling it on a good response will do nothing  #16399

### Bug Fixes

- Update conn.conn_kw rather than overriding it when setting block size. (thanks for @jiasli for the contribution)  #16587

## 1.10.0 (2021-01-11)

### Features

- Added `AzureSasCredential` and its respective policy. #15946

## 1.9.0 (2020-11-09)

### Features

- Add a `continuation_token` attribute to the base `AzureError` exception, and set this value for errors raised
  during paged or long-running operations.

### Bug Fixes

- Set retry_interval to 1 second instead of 1000 seconds (thanks **vbarbaresi** for contributing)  #14357


## 1.8.2 (2020-10-05)

### Bug Fixes

- Fixed bug to allow polling in the case of parameterized endpoints with relative polling urls  #14097


## 1.8.1 (2020-09-08)

### Bug fixes

- SAS credential replicated "/" fix #13159

## 1.8.0 (2020-08-10)

### Features

- Support params as list for exploding parameters  #12410


## 1.7.0 (2020-07-06)

### Bug fixes

- `AzureKeyCredentialPolicy` will now accept (and ignore) passed in kwargs  #11963
- Better error messages if passed endpoint is incorrect  #12106
- Do not JSON encore a string if content type is "text"  #12137

### Features

- Added `http_logging_policy` property on the `Configuration` object, allowing users to individually
set the http logging policy of the config  #12218

## 1.6.0 (2020-06-03)

### Bug fixes

- Fixed deadlocks in AsyncBearerTokenCredentialPolicy #11543
- Fix AttributeException in StreamDownloadGenerator #11462

### Features

- Added support for changesets as part of multipart message support #10485
- Add AsyncLROPoller in azure.core.polling #10801
- Add get_continuation_token/from_continuation_token/polling_method methods in pollers (sync and async) #10801
- HttpResponse and PipelineContext objects are now pickable #10801

## 1.5.0 (2020-05-04)

### Features

- Support "x-ms-retry-after-ms" in response header   #10743
- `link` and `link_from_headers` now accepts attributes   #10765

### Bug fixes

- Not retry if the status code is less than 400 #10778
- "x-ms-request-id" is not considered safe header for logging #10967

## 1.4.0 (2020-04-06)

### Features

- Support a default error type in map_error #9773
- Added `AzureKeyCredential` and its respective policy. #10509
- Added `azure.core.polling.base_polling` module with a "Microsoft One API" polling implementation #10090
  Also contains the async version in `azure.core.polling.async_base_polling`
- Support kwarg `enforce_https` to disable HTTPS check on authentication #9821
- Support additional kwargs in `HttpRequest.set_multipart_mixed` that will be passed into pipeline context.

## 1.3.0 (2020-03-09)

### Bug fixes

- Appended RequestIdPolicy to the default pipeline  #9841
- Rewind the body position in async_retry   #10117

### Features

- Add raw_request_hook support in custom_hook_policy   #9958
- Add timeout support in retry_policy   #10011
- Add OdataV4 error format auto-parsing in all exceptions ('error' attribute)  #9738

## 1.2.2 (2020-02-10)

### Bug fixes

- Fixed a bug that sends None as request_id #9545
- Enable mypy for customers #9572
- Handle TypeError in deep copy #9620
- Fix text/plain content-type in decoder #9589

## 1.2.1 (2020-01-14)

### Bug fixes

- Fixed a regression in 1.2.0 that was incompatible with azure-keyvault-* 4.0.0
[#9462](https://github.com/Azure/azure-sdk-for-python/issues/9462)


## 1.2.0 (2020-01-14)

### Features

- Add user_agent & sdk_moniker kwargs in UserAgentPolicy init   #9355
- Support OPTIONS HTTP verb     #9322
- Add tracing_attributes to tracing decorator   #9297
- Support auto_request_id in RequestIdPolicy   #9163
- Support fixed retry   #6419
- Support "retry-after-ms" in response header   #9240

### Bug fixes

- Removed `__enter__` and `__exit__` from async context managers    #9313

## 1.1.1 (2019-12-03)

### Bug fixes

- Bearer token authorization requires HTTPS
- Rewind the body position in retry #8307

## 1.1.0 (2019-11-25)

### Features

- New RequestIdPolicy   #8437
- Enable logging policy in default pipeline #8053
- Normalize transport timeout.   #8000
  Now we have:
  * 'connection_timeout' - a single float in seconds for the connection timeout. Default 5min
  * 'read_timeout' - a single float in seconds for the read timeout. Default 5min

### Bug fixes

- RequestHistory: deepcopy fails if request contains a stream  #7732
- Retry: retry raises error if response does not have http_response #8629
- Client kwargs are now passed to DistributedTracingPolicy correctly    #8051
- NetworkLoggingPolicy now logs correctly all requests in case of retry #8262

## 1.0.0 (2019-10-29)

### Features

- Tracing: DistributedTracingPolicy now accepts kwargs network_span_namer to change network span name  #7773
- Tracing: Implementation of AbstractSpan can now use the mixin HttpSpanMixin to get HTTP span update automatically  #7773
- Tracing: AbstractSpan contract "change_context" introduced  #7773
- Introduce new policy HttpLoggingPolicy  #7988

### Bug fixes

- Fix AsyncioRequestsTransport if input stream is an async generator  #7743
- Fix form-data with aiohttp transport  #7749

### Breaking changes

- Tracing: AbstractSpan.set_current_span is longer supported. Use change_context instead.  #7773
- azure.core.pipeline.policies.ContentDecodePolicy.deserialize_from_text changed

## 1.0.0b4 (2019-10-07)

### Features

- Tracing: network span context is available with the TRACING_CONTEXT in pipeline response  #7252
- Tracing: Span contract now has `kind`, `traceparent` and is a context manager  #7252
- SansIOHTTPPolicy methods can now be coroutines #7497
- Add multipart/mixed support #7083:

  - HttpRequest now has a "set_multipart_mixed" method to set the parts of this request
  - HttpRequest now has a "prepare_multipart_body" method to build final body.
  - HttpResponse now has a "parts" method to return an iterator of parts
  - AsyncHttpResponse now has a "parts" methods to return an async iterator of parts
  - Note that multipart/mixed is a Python 3.x only feature

### Bug fixes

- Tracing: policy cannot fail the pipeline, even in the worst condition  #7252
- Tracing: policy pass correctly status message if exception  #7252
- Tracing: incorrect span if exception raised from decorated function  #7133
- Fixed urllib3 ConnectTimeoutError being raised by Requests during a socket timeout. Now this exception is caught and wrapped as a `ServiceRequestError`  #7542

### Breaking changes

- Tracing: `azure.core.tracing.context` removed
- Tracing: `azure.core.tracing.context.tracing_context.with_current_context` renamed to `azure.core.tracing.common.with_current_context`  #7252
- Tracing: `link` renamed `link_from_headers`  and `link` takes now a string
- Tracing: opencensus implementation has been moved to the package `azure-core-tracing-opencensus`
- Some modules and classes that were importables from several different places have been removed:

   - `azure.core.HttpResponseError` is now only `azure.core.exceptions.HttpResponseError`
   - `azure.core.Configuration` is now only `azure.core.configuration.Configuration`
   - `azure.core.HttpRequest` is now only `azure.core.pipeline.transport.HttpRequest`
   - `azure.core.version` module has been removed. Use `azure.core.__version__` to get version number.
   - `azure.core.pipeline_client` has been removed. Import from `azure.core` instead.
   - `azure.core.pipeline_client_async` has been removed. Import from `azure.core` instead.
   - `azure.core.pipeline.base` has been removed. Import from `azure.core.pipeline` instead.
   - `azure.core.pipeline.base_async` has been removed. Import from `azure.core.pipeline` instead.
   - `azure.core.pipeline.policies.base` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.base_async` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.authentication` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.authentication_async` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.custom_hook` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.redirect` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.redirect_async` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.retry` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.retry_async` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.distributed_tracing` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.pipeline.policies.universal` has been removed. Import from `azure.core.pipeline.policies` instead.
   - `azure.core.tracing.abstract_span` has been removed. Import from `azure.core.tracing` instead.
   - `azure.core.pipeline.transport.base` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.pipeline.transport.base_async` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.pipeline.transport.requests_basic` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.pipeline.transport.requests_asyncio` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.pipeline.transport.requests_trio` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.pipeline.transport.aiohttp` has been removed. Import from `azure.core.pipeline.transport` instead.
   - `azure.core.polling.poller` has been removed. Import from `azure.core.polling` instead.
   - `azure.core.polling.async_poller` has been removed. Import from `azure.core.polling` instead.

## 1.0.0b3 (2019-09-09)

### Bug fixes

-  Fix aiohttp auto-headers #6992
-  Add tracing to policies module init  #6951

## 1.0.0b2 (2019-08-05)

### Breaking changes

- Transport classes don't take `config` parameter anymore (use kwargs instead)  #6372
- `azure.core.paging` has been completely refactored  #6420
- HttpResponse.content_type attribute is now a string (was a list)  #6490
- For `StreamDownloadGenerator` subclasses, `response` is now an `HttpResponse`, and not a transport response like `aiohttp.ClientResponse` or `requests.Response`. The transport response is available in `internal_response` attribute  #6490

### Bug fixes

- aiohttp is not required to import async pipelines classes #6496
- `AsyncioRequestsTransport.sleep` is now a coroutine as expected #6490
- `RequestsTransport` is not tight to `ProxyPolicy` implementation details anymore #6372
- `AiohttpTransport` does not raise on unexpected kwargs  #6355

### Features

- New paging base classes that support `continuation_token` and `by_page()`  #6420
- Proxy support for `AiohttpTransport`  #6372

## 1.0.0b1 (2019-06-26)

- Preview 1 release
