API Change Watch https://apichangewatch.dev/ A structured feed of breaking changes and deprecations across major API providers, built for humans and coding agents. [firebase] breaking: Firebase ML is deprecated and will be shut down on June 15, 2027. https://firebase.google.com/support/releases firebase:release-notes:1 種別: sunset-date / 発効: 2027-06-15 | 対象: Firebase ML | 移行: Migrate apps to use Cloud Storage for TFLite models or Cloud Vision API endpoints directly. [google] breaking: The Gemini 3.x series models have announced retirement dates starting from May 2027. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:9 種別: sunset-date / 発効: 2027-05-28 | 対象: gemini-3.5-flash, gemini-3.1-flash-lite, gemini-3.1-flash-image, gemini-3-pro-image | 移行: Ensure your implementation is prepared for future stable model releases. [google] breaking: The gemini-3.1-flash-lite model is scheduled for shutdown on May 7, 2027. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:1 種別: sunset-date / 発効: 2027-05-07 | 対象: gemini-3.1-flash-lite [google] breaking: Several modern text and multimodal embedding models are scheduled for retirement in April 2027. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:8 種別: sunset-date / 発効: 2027-04-01 | 対象: text-embedding-005, text-embedding-004, text-multilingual-embedding-002, multimodalembedding@001 | 移行: Migrate to gemini-embedding-001 or newer embedding model versions. [firebase] breaking: Firebase Studio will be shut down on March 22, 2027. https://firebase.google.com/support/releases firebase:release-notes:6 種別: sunset-date / 発効: 2027-03-22 | 対象: Firebase Studio | 移行: Migrate Firebase Studio projects to Google AI Studio or Google Antigravity. [openai] breaking: OpenAI is restricting new fine-tuning job creation for organizations based on activity history, leading to a total shutdown of new job creation in 2027. https://developers.openai.com/api/docs/deprecations openai:deprecations:7 種別: behavior-change / 発効: 2027-01-06 | 対象: self-serve fine-tuning | 移行: Ensure fine-tuning jobs are completed before the deadlines. Inference remains available until base models are deprecated. [github] breaking: Granular access tokens with 2FA-bypass will lose the ability to publish directly to the npm registry. https://github.blog/changelog/feed/ github:changelog-feed:3 種別: removal / 発効: 2027-01-01 | 対象: bypass2fa, granular access tokens | 移行: Move automated publishing to trusted publishing (OIDC) or staged publishing with a human approval step. [google] breaking: The native audio version of Gemini Live 2.5 Flash is scheduled for retirement in December 2026. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:7 種別: sunset-date / 発効: 2026-12-13 | 対象: gemini-live-2.5-flash-native-audio | 移行: Monitor documentation for recommended replacement models prior to the retirement date. [openai] breaking: OpenAI is deprecating and removing older GPT-5 and o3 model snapshots from the API. https://developers.openai.com/api/docs/deprecations openai:deprecations:1 種別: removal / 発効: 2026-12-11 | 対象: gpt-5-2025-08-07, gpt-5-mini-2025-08-07, gpt-5-nano-2025-08-07, gpt-5-pro-2025-10-06, o3-2025-04-16, o3-pro-2025-06-10 | 移行: Update your application to use newer recommended models like gpt-5.5, gpt-5.4-mini, or gpt-5.5-pro. [openai] breaking: Older GPT Image models are being deprecated and will be removed from the API. https://developers.openai.com/api/docs/deprecations openai:deprecations:5 種別: removal / 発効: 2026-12-01 | 対象: gpt-image-1-mini, gpt-image-1.5, chatgpt-image-latest | 移行: Recommended replacement is gpt-image-2. [openai] breaking: The v1/prompts API and reusable prompt objects are being deprecated and scheduled for shutdown. https://developers.openai.com/api/docs/deprecations openai:deprecations:2 種別: removal / 発効: 2026-11-30 | 対象: v1/prompts, reusable prompt objects | 移行: Move reusable prompt content into your application code. Refer to 'Migrate from prompt objects' guide. [openai] breaking: The Evals platform, including its dashboard and API, is being deprecated. https://developers.openai.com/api/docs/deprecations openai:deprecations:3 種別: removal / 発効: 2026-11-30 | 対象: Evals dashboard, Evals API | 移行: Migrate to alternative tools such as Promptfoo. Existing evals become read-only on Oct 31, 2026. [openai] breaking: Agent Builder is being deprecated and scheduled to shut down. https://developers.openai.com/api/docs/deprecations openai:deprecations:4 種別: removal / 発効: 2026-11-30 | 対象: Agent Builder | 移行: Migrate to the Agents SDK or ChatGPT Workspace Agents. ChatKit remains available. [openai] breaking: Multiple major model snapshots including gpt-3.5-turbo, gpt-4, and o1 versions are being shut down. https://developers.openai.com/api/docs/deprecations openai:deprecations:9 種別: removal / 発効: 2026-10-23 | 対象: gpt-3.5-turbo-0125, gpt-4-0613, gpt-4-turbo, o1-2024-12-17, o3-mini-2025-01-31 | 移行: Migrate to gpt-5.5 or gpt-5.4-mini. Fine-tuned versions of these models are also affected. [google] breaking: The Gemini 2.5 model series is scheduled for retirement in October 2026. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:5 種別: sunset-date / 発効: 2026-10-16 | 対象: gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite | 移行: Update application to point to Gemini 3.5 Flash, Gemini 3.1 Flash-Lite, or Gemma 4. [google] breaking: The stable gemini-2.5-pro model is scheduled for shutdown on October 16, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:5 種別: sunset-date / 発効: 2026-10-16 | 対象: gemini-2.5-pro | 移行: Migrate to gemini-3.1-pro-preview. [google] breaking: The gemini-2.5-flash and gemini-2.5-flash-lite models will be shut down on October 16, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:7 種別: sunset-date / 発効: 2026-10-16 | 対象: gemini-2.5-flash, gemini-2.5-flash-lite | 移行: Migrate to gemini-3.5-flash or gemini-3.1-flash-lite. [google] breaking: The Gemini 2.5 Flash Image model is scheduled to retire in early October 2026. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:6 種別: sunset-date / 発効: 2026-10-02 | 対象: gemini-2.5-flash-image | 移行: Plan migration to later Gemini image models such as gemini-3.1-flash-image. [google] breaking: The gemini-2.5-flash-image model will reach its shutdown date on October 2, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:8 種別: sunset-date / 発効: 2026-10-02 | 対象: gemini-2.5-flash-image | 移行: Migrate to gemini-3.1-flash-image-preview. [twilio] breaking: The Conference list endpoint behavior is changing to only return in-progress conferences. https://www.twilio.com/en-us/changelog twilio:changelog:1 種別: behavior-change / 発効: 2026-09-30 | 対象: Conference list endpoint | 移行: Prepare for the endpoint to exclude finished conferences after the rollout date; review the provided documentation for details. [openai] breaking: The Videos API and Sora 2 video generation models are being deprecated and removed. https://developers.openai.com/api/docs/deprecations openai:deprecations:10 種別: removal / 発効: 2026-09-24 | 対象: Videos API, sora-2, sora-2-pro | 移行: There are no direct recommended replacements listed; evaluate alternative video generation options. [openai] breaking: The Assistants API is deprecated and scheduled for complete removal in favor of newer APIs. https://developers.openai.com/api/docs/deprecations openai:deprecations:13 種別: sunset-date / 発効: 2026-08-26 | 対象: Assistants API | 移行: Migrate to the Responses API and Conversations API. Refer to the Assistants to Conversations migration guide. [google] breaking: Imagen 4.0 stable models are scheduled for shutdown on August 17, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:20 種別: sunset-date / 発効: 2026-08-17 | 対象: imagen-4.0-generate-001, imagen-4.0-ultra-generate-001, imagen-4.0-fast-generate-001 | 移行: Migrate to gemini-3.1-flash-image. [google] breaking: The embedding-2-preview model is scheduled for shutdown on August 10, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:18 種別: sunset-date / 発効: 2026-08-10 | 対象: embedding-2-preview | 移行: Migrate to gemini-embedding-2. [openai] breaking: Specific model snapshots gpt-5.2-chat-latest and gpt-5.3-chat-latest are being removed. https://developers.openai.com/api/docs/deprecations openai:deprecations:6 種別: removal / 発効: 2026-08-10 | 対象: gpt-5.2-chat-latest, gpt-5.3-chat-latest | 移行: Update to gpt-5.5. [twilio] breaking: The conference_participant field is being removed from the Voice Insights Call Summary in both the REST API and Event Streams. https://www.twilio.com/en-us/changelog twilio:changelog:3 種別: removal / 発効: 2026-08-01 | 対象: conference_participant, Voice Insights Call Summary, REST API, Event Streams | 移行: Use the Conference Insights API or Conference Insights Event Streams for conference data going forward as this field will return null after removal. [github] breaking: Granular access tokens (GATs) configured to bypass 2FA will no longer be able to perform sensitive account, package, and organization management actions. https://github.blog/changelog/feed/ github:changelog-feed:2 種別: deprecation / 発効: 2026-08-01 | 対象: bypass2fa, granular access tokens | 移行: Stop using 2FA-bypass tokens for sensitive operations and perform them interactively with 2FA. [openai] breaking: A large batch of legacy GPT model snapshots and previews are scheduled for removal. https://developers.openai.com/api/docs/deprecations openai:deprecations:8 種別: removal / 発効: 2026-07-23 | 対象: gpt-4o-mini-tts-2025-03-20, gpt-5-chat-latest, gpt-5-codex, gpt-5.1-chat-latest, o3-deep-research | 移行: Update to newer stable models such as gpt-5.5 or gpt-5.4-mini as specified in the deprecation table. [google] breaking: The gemini-embedding-001 model is scheduled for shutdown on July 14, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:16 種別: sunset-date / 発効: 2026-07-14 | 対象: gemini-embedding-001 | 移行: Migrate to gemini-embedding-2. [github] breaking: npm v12 introduces new security defaults where dependency lifecycle scripts, git dependencies, and remote tarball dependencies are disabled by default. https://github.blog/changelog/feed/ github:changelog-feed:1 種別: behavior-change / 発効: 2026-07-08 | 対象: allowScripts, --allow-git, --allow-remote | 移行: To approve trusted scripts, run 'npm approve-scripts --allow-scripts-pending' and commit the result in package.json, or explicitly use allow-scripts, allow-git, and allow-remote flags. [github] warning: Enterprise-managed settings now take precedence over local environment variables (like OTEL_*) and user settings for GitHub Copilot in VS Code and CLI. https://github.blog/changelog/feed/ github:changelog-feed:4 種別: behavior-change / 発効: 2026-07-08 | 対象: OTEL_*, telemetry, permissions.disableBypassPermissionsMode, model, enabledPlugins | 移行: Be aware that administrator-defined values in MDM, server-managed settings, or managed-settings.json will override local developer configurations. [github] warning: The actions/setup-java v5.5.0 now sets --no-transfer-progress in MAVEN_ARGS by default for Maven 3.9+ and the Maven Wrapper. https://github.blog/changelog/feed/ github:changelog-feed:5 種別: behavior-change / 発効: 2026-07-08 | 対象: MAVEN_ARGS, --no-transfer-progress, show-download-progress | 移行: To restore the progress output in logs, set the 'show-download-progress' input to true in your workflow step. [github] info: The built-in Ollama provider in VS Code is being deprecated in favor of an official VS Code extension. https://github.blog/changelog/feed/ github:changelog-feed:6 種別: removal / 発効: 不明 | 対象: built-in Ollama provider | 移行: Transition from the built-in provider to the official Ollama extension for faster updates and improved capabilities. [twilio] breaking: Twilio will update the SIP signaling IP addresses for Programmable Voice SIP and Elastic SIP Trunking over Interconnect to the 159.26.160.0/20 range. https://www.twilio.com/en-us/changelog twilio:changelog:2 種別: behavior-change / 発効: 不明 | 対象: Twilio Interconnect SIP Signaling IP Addresses, 159.26.160.0/20, Programmable Voice SIP, Elastic SIP Trunking | 移行: Update network firewalls to allowlist the new IP range 159.26.160.0/20 before the cutover in the second half of 2027. [firebase] breaking: All Imagen models are deprecated and will shut down as early as June 30, 2026. https://firebase.google.com/support/releases firebase:release-notes:5 種別: sunset-date / 発効: 2026-06-30 | 対象: Imagen | 移行: Migrate your apps to use a Gemini Image model (like Nano Banana models). [slack] warning: The Assistant messaging experience (assistant_view) is being replaced by the Agent messaging experience (agent_view). https://docs.slack.dev/changelog slack:changelog:2 種別: deprecation / 発効: 不明 | 対象: assistant_view, agent_view, assistant_thread_started, app_home_opened | 移行: Migrate apps to agent_view and replace the assistant_thread_started event with app_home_opened to detect when a user opens a DM. [google] breaking: Veo 2.0 and 3.0 stable models are scheduled for shutdown on June 30, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:23 種別: sunset-date / 発効: 2026-06-30 | 対象: veo-3.0-generate-001, veo-3.0-fast-generate-001, veo-2.0-generate-001 | 移行: Migrate to veo-3.1-generate-preview, veo-3.1-fast-generate-preview, or the GA models on the Gemini Enterprise Agent Platform. [anthropic] breaking: Claude Sonnet 5 introduces breaking changes where manual extended thinking is removed (returning a 400 error) and setting sampling parameters to non-default values also returns a 400 error. https://docs.anthropic.com/en/release-notes/api anthropic:release-notes:1 種別: breaking-modification / 発効: 2026-06-30 | 対象: claude-sonnet-5, thinking: {type: "enabled", budget_tokens: N}, temperature, top_p, top_k | 移行: Migrate to adaptive thinking which is now on by default; ensure temperature, top_p, and top_k are at default values for Claude Sonnet 5. [anthropic] info: Fast mode has been removed for Claude Opus 4.6. Requests using speed: 'fast' will now run at standard speed and billing rates without returning an error. https://docs.anthropic.com/en/release-notes/api anthropic:release-notes:2 種別: behavior-change / 発効: 2026-06-29 | 対象: claude-opus-4-6, speed: "fast" | 移行: To continue using fast mode, migrate to Claude Opus 4.8. [google] breaking: Preview models gemini-3.1-flash-image-preview and gemini-3-pro-image-preview will be shut down. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:2 種別: sunset-date / 発効: 2026-06-25 | 対象: gemini-3.1-flash-image-preview, gemini-3-pro-image-preview | 移行: Migrate to gemini-3.1-flash-image or gemini-3-pro-image respectively. [anthropic] breaking: The MCP tunnels management API moved from the Admin API to the Claude API, requiring a new beta header and WIF scope. https://docs.anthropic.com/en/release-notes/api anthropic:release-notes:3 種別: breaking-modification / 発効: 不明 | 対象: /v1/organizations/tunnels, /v1/tunnels, anthropic-beta: mcp-tunnels-2026-06-22, workspace:manage_tunnels | 移行: Update endpoint URLs to /v1/tunnels, include the 'anthropic-beta: mcp-tunnels-2026-06-22' header, and use the 'workspace:manage_tunnels' scope. [firebase] breaking: The Firebase extension for Gemini CLI will stop working as Gemini CLI transitions to Antigravity CLI. https://firebase.google.com/support/releases firebase:release-notes:2 種別: removal / 発効: 2026-06-18 | 対象: Firebase extension for Gemini CLI | 移行: Migrate to Antigravity CLI using the Gemini CLI migration guide. [slack] breaking: System notifications are now delivered from the new system user USLACK instead of Slackbot. https://docs.slack.dev/changelog slack:changelog:1 種別: behavior-change / 発効: 2026-06-17 | 対象: USLACK, Slackbot, chat.postMessage | 移行: Update integrations that filter incoming messages by Slackbot's user ID or check the username field for 'Slackbot' to handle the new USLACK user instead. [anthropic] breaking: Claude Sonnet 4 and Claude Opus 4 models have been retired and all requests now return an error. https://docs.anthropic.com/en/release-notes/api anthropic:release-notes:4 種別: sunset-date / 発効: 2026-06-15 | 対象: claude-sonnet-4-20250514, claude-opus-4-20250514 | 移行: Upgrade to Claude Sonnet 4.6 and Claude Opus 4.8 respectively. [anthropic] breaking: Claude Fable 5 and Mythos 5 do not support disabling thinking or assistant prefill, returning a 400 error if attempted. https://docs.anthropic.com/en/release-notes/api anthropic:release-notes:5 種別: breaking-modification / 発効: 2026-06-09 | 対象: claude-fable-5, claude-mythos-5, thinking: {"type": "disabled"}, assistant prefill | 移行: Remove thinking: {"type": "disabled"} and assistant prefill from requests when using these models. [firebase] breaking: Firebase Admin Node.js SDK v14.0.0 now requires Node.js 22 or higher and includes an error handling revamp. https://firebase.google.com/support/releases firebase:release-notes:3 種別: breaking-modification / 発効: 2026-06-08 | 対象: Firebase Admin Node.js SDK v14.0.0 | 移行: Upgrade Node.js runtime to version 22 or higher and review the error handling guide. [google] breaking: Gemini 2.0 Flash series models have been retired. https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions google:vertex-model-versions:4 種別: removal / 発効: 2026-06-01 | 対象: gemini-2.0-flash, gemini-2.0-flash-lite | 移行: Upgrade your application to use gemini-3.1-flash-lite. [aws] breaking: AWS SDK for .NET 3.x is reaching its End-of-Support phase. https://docs.aws.amazon.com/sdkref/latest/guide/version-support-matrix.html aws:sdk-support-matrix:1 種別: sunset-date / 発効: 2026-06-01 | 対象: SDK for .NET, 3.x | 移行: Upgrade to SDK for .NET 4.x to ensure continued support and compatibility. [aws] breaking: AWS Tools for PowerShell 4.x is reaching its End-of-support phase. https://docs.aws.amazon.com/sdkref/latest/guide/version-support-matrix.html aws:sdk-support-matrix:2 種別: sunset-date / 発効: 2026-06-01 | 対象: Tools for PowerShell, 4.x | 移行: Migrate to Tools for PowerShell 5.x for modern features and support. [google] breaking: Gemini 2.0 Flash and Flash Lite stable models are scheduled for shutdown on June 1, 2026. https://ai.google.dev/gemini-api/docs/deprecations google:gemini-api-deprecations:13 種別: sunset-date / 発効: 2026-06-01 | 対象: gemini-2.0-flash, gemini-2.0-flash-001, gemini-2.0-flash-lite, gemini-2.0-flash-lite-001 | 移行: Migrate to gemini-3.5-flash or gemini-3.1-flash-lite.