v2.1.0

What's Changed

SDK

• [feature] OAuth token requests are now automatically retried (up to 3 times, with exponential backoff and jitter) when the authentication service is rate-limited (HTTP 429).
• [dependency] Set up minimum version for requests to >=2.0.0 to prevent pulling in versions with known vulnerabilities.
• [fix] Fixed a race condition in OAuth token creation and renewal under concurrent requests: TokenManagerBase now uses a lock with double-checked locking so the initial token is fetched exactly once, and a new refresh_auth_token(used_token) deduplicates concurrent renewals by only fetching when the stale token still matches the cached one.
• [refactor] HTTPTransport now prepares and authenticates requests in request(), so the new send_request(request_data) receives an already-prepared HttpRequest and acts as a pure I/O primitive, simplifying subclassing.
• [deprecation notice] HTTPTransport.send(endpoint) is deprecated in favour of send_request(request_data); the legacy method still works for backward compatibility, but will be removed in 3.0.
• [deprecation notice] TokenManagerBase.invalidate_expired_token() and handle_invalid_token() (and the TokenState.EXPIRED value) are deprecated and will be removed in 3.0, as token renewal now goes through refresh_auth_token().
• [tech] Removed unused GitHub environment secrets from CI workflow and simplified test fixtures to use hardcoded test values.
• [refactor] Consolidated the duplicated per-domain BaseModelConfiguration classes into three shared base classes in sinch.core.models.internal (BaseConfigModel, SnakeCaseExtrasModel, CamelCaseDumpModel).
• [doc] Improve README structure and content.

SMS

• [feature] SMS Groups API: create, list, get, update, replace, delete, and list_members operations, with full model, endpoint, and unit test coverage (see MIGRATION_GUIDE.md).
• [feature] SMS Inbounds API: get and list operations, with full model, endpoint, and unit test coverage (see MIGRATION_GUIDE.md).
• [design] SMS Sinch Events inbound payload models unified with the Inbounds API: MOTextSinchEvent, MOBinarySinchEvent, MOMediaSinchEvent, MediaBody, and MediaItem removed from sinch_events; use InboundMessage (and its variants) from sinch.domains.sms.models.v1.types instead (see MIGRATION_GUIDE.md).

Numbers

• [feature] NumberSinchEvent synchronized with the Numbers OAS spec: new internal_failure_code field, additional status values (IN_REVIEW, BLOCKED, COMPLETED, REJECTED, EXPIRED), a new NUMBER_ORDER_PROCESSING event type, and corrected event type DEPROVISIONING_FROM_VOICE_PLATFORM (previously DEPROVISIONING_TO_VOICE_PLATFORM).

v2.0.1

What's Changed

SMS

• [fix] SMS paginator fix (#145).

v2.0.0

What's Changed

SDK

• [design] Requires explicit sms_region and conversation_region on SinchClient before using SMS and Conversation APIs (no silent US/EU defaults); runtime failure if unset (#49, #110).
• [design] The v1 asynchronous client and httpx-based async stack were removed; only synchronous SinchClient is supported (#55).
• [feature] Automatic pagination via a shared Paginator pattern for paged list APIs (#46, #54).
• [doc] README and configuration tests clarify which credentials apply to each API (#48).

Conversation

• [feature] Messages API refresh: convenience send methods (send_text_message(), send_card_message(), send_carousel_message(), send_choice_message(), send_contact_info_message(), send_list_message(), send_location_message(), send_media_message(), send_template_message()), list() as a paginator, update(), event_destination_target (wires callback_url), and a sinch_client.conversation.sinch_events(...) helper for inbound event handling (#109–#120).
• [feature] Conversation Sinch Events (webhooks) support (#122, #131, #132, #133).
• [design] Conversation webhook REST client removed; handle inbound traffic via Sinch Events (see MIGRATION_GUIDE.md) (#131, #132, #133).

Numbers

• [feature] Flatter API (rent, list, event_destinations, and related entry points), event_destination_target, and a Numbers Sinch Events helper (#44, #53, #57, #58, #59, #62).
• [feature] Available Regions endpoint (#56).
• [feature] Webhook helper validates the signing secret in validate_signature_header() (#61).
• [tech] Numbers Events payloads are passed through without client-side pre-processing (#63).

Number Lookup

• [feature] Number Lookup v1 (lookup API, models, snippets, and E2E coverage) (#99, #101, #104).

SMS

• [design] SMS client configuration and authentication paths refactored for project vs service-plan credentials, including delivery-report flows (#90).
• [feature] SMS delivery reports models and pagination (#87). groups and inbounds are planned for a future release (see migration guide).
• [feature] SMS Sinch Events (webhooks) support (#103).
• [doc] SMS migration guide and Sinch events quickstart material (#107, #108).

Verification

• [design] Verification V1 APIs are removed (#124). V2 Verification support is planned in a future release (see MIGRATION_GUIDE.md).

Voice

• [design] Voice V1 APIs are removed (#124). V2 Voice support is planned in a future release (see MIGRATION_GUIDE.md).

Others

• [dependency] Pydantic v2 (pydantic = ">=2.0.0").
• [releasing] Ruff linter adoption (#84) and CI workflow updates (#121).
• [doc] Snippets and Getting Started live under examples/ (#95, #98, #105, #106, #115, #118, #125, #127).
• [doc] Docstring updates across Numbers, SMS, and Conversation (#64, #65, #67, #96, #97).
• [refactor] Model, type, and class renames (#60, #70, #82).
• [tech] Conversation, Numbers, and SMS models and endpoints resynchronized with OpenAPI specification (#68, #75, #123, #128, #129, #134, #135).
• [test] E2E test infrastructure and refactoring (#45, #66, #102); SMS batches test coverage (#91, #93, #94).

v1.1.4

What's Changed

• Add python 3.13 and 3.14 spec by @vincentdavis in #86
• relese(ci): Add Python 3.13 and 3.14 support by @matsk-sinch in #89

New Contributors

• @vincentdavis made their first contribution in #86

Full Changelog: v1.1.3...v1.1.4

v1.1.3

What's Changed

• Fix DTMF options for conference call by @asein-sinch in #79

Full Changelog: v1.1.2...v1.1.3

v1.1.2

What's Changed

• DEVEXP-696: Disable E2E tests by @asein-sinch in #41
• DEVEXP-707: Fix README link by @matsk-sinch in #42
• DEVEXP-709: Clean Up tests and Update CI Pipeline by @matsk-sinch in #43
• Add missing implementations for async authentication by @asein-sinch in #74

Full Changelog: v1.1.1...v1.1.2

v1.1.1

What's Changed

• RELEASE v1.1.1 : remove aiohttp leftovers by @650elx in #40

Full Changelog: v1.1.0...v1.1.1

v1.1.0

What's Changed

• CI: execution strategy changed by @650elx in #34
• DEVEXP-464 update verification API with backwards compat @650elx in #36
• DEVEXP-340/DEVEXP-471 - automated CI/CD release to PyPI and async library replacement in #29
• [SMS] service plan id version of the API @650elx in #17

v1.0.0

What's Changed

• Verification: elegant methods for callouts by @650elx in #26
• [Voice] - support for the whole API by @650elx in #27
• feat(GA): readme updated by @650elx in #28

Full Changelog: 0.4.0...1.0.0