API Change Radar

The Assistants API shut down on August 26, 2026, with no further access. Additionally, several transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) are deprecated and will shut down February 26, 2027.

Four framework adapters in @supabase/server (@supabase/server/adapters/hono, /h3, /elysia, /nestjs) are deprecated and will be removed on December 1, 2026. Developers must migrate to framework-specific bridge files copied into their own projects.

Multiple breaking and deprecation changes across Plaid APIs, including: account subtypes being subdivided (home equity, commercial) effective October 11, 2026; Signal consent now required before /signal/evaluate can be called; Plaid Check products must be explicitly requested in /create calls or a PRODUCT_NOT_REQUESTED error will result; Android SDK v6.0.0 removes legacy APIs; React Native SDK v13.0.0 removes legacy global APIs.

A new changelog entry was added on Oct 8, 2026 indicating that triage role users or higher can now archive pull requests. This is a permission/capability improvement to the collaboration tools.

Twilio is introducing standardized rate limits on the Content API at the account level, enforcing specific requests-per-second (RPS) thresholds per endpoint. Requests exceeding these limits will receive HTTP 429 Too Many Requests responses.

OpenAI added 'Create an environment' and 'List environments' endpoints to the Agents API Environments section, expanding environment management capabilities. The navigation structure now shows Environments as a full CRUD-like resource rather than just 'Retrieve an environment'.

OpenAI has announced the deprecation of whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, and gpt-4o-transcribe-diarize (shutdown February 26, 2027), and has confirmed the Assistants API shut down on August 26, 2026. Migration targets are gpt-live-transcribe or gpt-transcribe, and the Responses/Conversations API respectively.

Two new changelog entries were added on Oct 8, 2026: an accessibility improvement for screen readers to navigate timelines as lists, and a behavioral change making draft pull requests count toward pull request limits.

OpenAI has added support for a new `X-Client-Request-Id` request header that allows developers to supply their own unique identifier for each API request. This ID is logged internally by OpenAI and can be used for troubleshooting when the server-generated `x-request-id` response header is unavailable (e.g., due to timeouts or network issues).

The 'Create a Text Completion' endpoint has been marked as 'Deprecated' in the navigation menu of Anthropic's API documentation. This signals an official deprecation of the legacy Text Completions API.

POS UI extensions now return percentage values for percentage discounts as a new breaking change in API version 2026-10. This is a newly added entry in the changelog that was not present in the previous version.

GitHub added four new changelog entries on Oct 7, 2026: Claude Haiku 5.5 in GitHub Copilot, local sandboxing for GitHub Copilot now generally available, and the ability to discover local models in GitHub Copilot CLI. These represent new capabilities and model availability for Copilot users.

Anthropic added documentation for a new `server_tools` capability object in the Models API response, which reports whether a model supports web search and code execution tools. A separate top-level `code_execution` capability field is also described, indicating whether Claude can call other tools programmatically during code execution.

Anthropic has added Claude Haiku 5.5 as a new model to their lineup, replacing Claude Haiku 4.5 as the primary featured fast model. Claude Haiku 5.5 offers significantly improved specs including a 1M token context window, 128K max output, adaptive thinking, and pricing starting from $0.10/input MTok, with a retirement date no sooner than October 7, 2027.

The Assistants API shut down on August 26, 2026, with no further access. Additionally, whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, and gpt-4o-transcribe-diarize are deprecated and will shut down on February 26, 2027.

Three new changelog entries appeared in October 2026: cart mutations now reject unconfirmed writes in POS UI Extensions 2026-10 (breaking), a per-customer request limit was introduced for the Customer Account API, and app access scopes can now be downgraded from write to read via the Admin GraphQL API. Additionally, the version list gained a '2025-01' entry and '2026-10-01' was consolidated into '2026-10'.

Slack system notifications (channel membership changes, User Group updates, Slack Connect alerts, retention policy notices) are now delivered from a new 'Slack' system user (USLACK) instead of Slackbot. Apps that filter events or messages by Slackbot's user ID or username to identify system notifications will break.

GitHub added two new changelog entries on Oct 7, 2026: a purpose-built model for leaked secret detection (application security/copilot) and a GitHub Copilot weekly releases summary for September 28. These appear as newly inserted items in the changelog page.

The Assistants API was shut down on August 26, 2026, with no further access. Multiple transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) were deprecated and will shut down on February 26, 2027.

The four framework adapters shipped inside @supabase/server (@supabase/server/adapters/hono, /h3, /elysia, /nestjs) are deprecated and will be removed on December 1, 2026. Developers must migrate to framework-specific bridge files copied into their own projects.

Multiple breaking changes detected in this changelog period, including: (1) Channel obfuscation for bots lacking VIEW_CHANNEL (channels hidden/omitted from HTTP responses starting Nov 16, 2026; Gateway behavior testable now), (2) `shard` param now required for Get Current User Guilds with large bot sharding (returns 400 without it), (3) `PRUNE_REQUIRES_ADMIN` guild feature requiring ADMINISTRATOR permission for prune endpoints, (4) `channel.application_id` is now nullable, and (5) Battle.net connections removed from Get Current User Connections as of Sept 22, 2026.

Multiple breaking changes are present in this diff, most critically: (1) Channel obfuscation for bots lacking VIEW_CHANNEL — channels will be hidden or have fields nulled over Gateway/HTTP; (2) `shard` param now required for large bot sharding on Get Current User Guilds; (3) `application_id` on channel object is now nullable; (4) Battle.net and Riot Games connections removed from Get Current User Connections; (5) PRUNE_REQUIRES_ADMIN guild feature adds new permission requirement for prune endpoints.

The four framework adapters in @supabase/server (@supabase/server/adapters/hono, /h3, /elysia, /nestjs) are deprecated and will be removed on December 1, 2026. Developers should migrate to framework-specific bridge files that compose @supabase/middleware entries instead.

Shopify's developer changelog page has been updated with several new entries, most notably adding 'New tax fields for return shipping fees in the GraphQL Admin API' and a '07.22 Meet the 2026 Shopify Build Award winners' blog post, along with a '07.15 Sign in with Shop opens to storefront apps' announcement and '07.07 The next generation of Shopify fulfillment is coming' post.

Stripe's changelog page has been updated with a new 'Endive' API version (2026-09-30) containing numerous breaking changes, deprecations, and new features across Payments, Connect, Billing, and other product areas. A minor navigation change was also made (adding 'API Events' to the sidebar).

Two new changelog entries were added on Oct 6, 2026: 'Stacked pull requests generally available' and 'Update your IDE to restore agent activity in Copilot usage metrics'. The rest of the changelog content is unchanged.

Twilio is introducing standardized account-level rate limits on the Content API, with specific RPS limits per endpoint. Requests exceeding these limits will receive HTTP 429 responses.

The Assistants API was shut down on August 26, 2026, with no further access. Multiple transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) were deprecated and will shut down on February 26, 2027.

Anthropic added documentation for a new `thinking.types.disabled` field in the Models API capabilities object, which indicates whether a model accepts `thinking: {type: "disabled"}` to turn off thinking mode. This clarifies API behavior around disabling thinking on models that support it.

The Assistants API was shut down on August 26, 2026, with no further access. Multiple transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) were also deprecated and will shut down on February 26, 2027.

A new 'Decisions' section has been added to the Beta APIs portion of the navigation sidebar, appearing between the Conversations section and the Responses (Multi-agent) section. All other content appears unchanged.

OpenAI's changelog covers a large number of updates from May–October 2026, including new models (GPT-6 Astra, GPT-6 Sol, GPT-6 Luna, GPT-6.1 Sol, GPT-Live-1, GPT Transcribe, GPT Image 2.5), new APIs and capabilities (Agents API, Prompt Cache Diagnostics, Ultrafast mode, async tool calling, mid-turn steering, mTLS, Terraform provider, computer use, hard spend limits, IPv6 support), and several deprecations (whisper-1, gpt-4o-transcribe variants, Assistants API shutdown, reusable prompt objects, Evals platform, Agent Builder).

Four framework adapters in @supabase/server (@supabase/server/adapters/hono, /h3, /elysia, /nestjs) are deprecated and will be removed on December 1, 2026. Developers must migrate to framework-specific bridge files that compose @supabase/middleware entries.

Shopify's changelog page has been updated with several new entries including a new API version label '2026-10-01' in the version selector, a new 'What's new in Polaris 2.0.0-rc.1' entry, and 'New Shop Campaigns metrics and dimensions in ShopifyQL API version 2026-10'. The overall diff reflects an incremental changelog page refresh rather than a single discrete API change.

Twilio is introducing standardized rate limits on the Content API at the account level, enforcing HTTP 429 responses when exceeded. Additionally, the Conference list endpoint will change its default behavior on September 30, 2026 to return only in-progress conferences instead of all conferences.

OpenAI's changelog covers a large number of updates from May–October 2026, including new models (GPT-6 Astra, GPT-6 Sol, GPT-6 Luna, GPT-6.1 Sol, GPT-Live-1, GPT Transcribe, GPT Image 2.5), new APIs (Agents API, Prompt Cache Diagnostics, Ultrafast mode), and deprecations of whisper-1, gpt-4o-transcribe variants, and the Assistants API (shut down August 26, 2026). Several breaking changes and deprecations are embedded within this broad changelog dump.

A new changelog entry was added on Oct 6, 2026 for 'Code scanning AI Scan enablement status in security overview', an improvement to application security tooling. No existing entries were removed or modified.

Twilio is introducing multiple platform changes including: rate limits on the Content API (HTTP 429 enforcement), a default filter change on the Conference list endpoint to return only in-progress conferences starting September 30 2026, and automatic provider failover for Real-Time Transcriptions starting October 22 2026. Several new GA and Beta features are also being released.

Shopify's changelog page has been updated with two new October 2026 entries: 'Return policy profiles are now available in the GraphQL Admin API' and 'New APIs for buyer-requested order edits', added alongside the existing 2026-10 release items.

Unvalidated npm trusted publishing configurations now expire (retired), and npm staged publishing now supports creating new packages. Additionally, secret scanning adds new detectors for Lovable, Supabase, and more.

The Assistants API was shut down on August 26, 2026, with no further access. Multiple transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) were deprecated and will shut down on February 26, 2027.

Anthropic's Models API response now includes a `line` field that identifies which model line (e.g., 'opus') a model belongs to, enabling grouping of models in pickers and UIs. The field is `null` for models that belong to no line.

PostgreSQL 15.19/17.11 minor release is being rolled out, requiring potential action for users of ltree indexes, pgcrypto with legacy ciphers (bf/blowfish/cast5), btree_gist indexes on float columns with NaN values, and custom operators with non-built-in selectivity estimators. Additionally, the Supabase Management API `logs.all` analytics endpoint was removed on 2026-09-23 and must be migrated to the new ClickHouse-backed `logs` endpoint.

The `assistant_view` (Assistant messaging experience) will be deprecated in February 2027, replaced by `agent_view` (Agent messaging experience) and a new Agent Sessions API. Additionally, system notifications are now delivered by a new 'Slack' system user (USLACK) instead of Slackbot, which is an immediate breaking change for apps filtering by Slackbot's user ID.

PostgreSQL 15.19/17.11 minor release is being rolled out, with four potentially breaking changes: ltree indexes may need reindexing, pgcrypto stops decrypting legacy-cipher (bf/blowfish/cast5) PGP data by default, btree_gist indexes on float columns with NaN need reindexing, and custom operators with non-built-in selectivity estimators now require superuser to recreate.

Stripe's upcoming 'Endive' API version (2026-09-30) introduces multiple breaking changes, including removal of the `payment_method_types` parameter from Checkout Sessions, Payment Intents, and Setup Intents, removal of PayTo-specific fields from Payment Methods, and removal of the `payment_method_types` option in Elements, among others.

Several GitHub Copilot models have been deprecated and retired, and stateless GitHub App installation tokens are being rolled out. Additionally, Copilot code review API support has been added with a new default effort level change.

Twilio is introducing multiple platform changes including: rate limits on the Content API (HTTP 429 enforcement), a default filter change on the Conference list endpoint to return only in-progress conferences starting September 30 2026, and automatic Provider Failover for Real-Time Transcriptions starting October 22 2026. Several new GA and Beta features are also being released.

The Assistants API was shut down on August 26, 2026, with no further access. Additionally, multiple transcription models (whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) were announced for deprecation with a shutdown date of February 26, 2027.

OpenAI added support for a new `X-Client-Request-Id` request header that allows developers to supply their own unique identifier per request, which OpenAI logs internally for supported endpoints. The header must contain only ASCII characters and be no more than 512 characters long, or the request will fail with a 400 error.