Official-source change intelligence
Verified operational changes that can break integrations, alter costs or require migration. Every record shows when it was checked.
Future confirmed deadlines requiring action.
Google · upcoming
Google will shut down gemini-omni-flash-preview on September 30, 2026 and names gemini-omni-1.1-flash as the replacement.
Deadline: 2026-09-30 · Checked:
Action: Replace gemini-omni-flash-preview with gemini-omni-1.1-flash and regression-test multimodal behavior, tool use, latency and cost before September 30.
OpenAI · upcoming
OpenAI deprecated Agent Builder on June 3 and scheduled the product to shut down on November 30, 2026. ChatKit remains available.
Deadline: 2026-11-30 · Checked:
Action: Export and inventory Agent Builder workflows, choose a target architecture, rebuild and regression-test tools, state, guardrails and ChatKit behavior, then cut over with rollback before November 30.
OpenAI · upcoming
OpenAI deprecated gpt-image-1-mini, gpt-image-1.5 and chatgpt-image-latest and will remove them from the API on December 1, 2026.
Deadline: 2026-12-01 · Checked:
Action: Replace retiring GPT Image model IDs with gpt-image-2 in a test environment and re-baseline generation, editing, transparency, safety, latency and cost before December 1.
OpenAI · upcoming
OpenAI will remove whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe and gpt-4o-transcribe-diarize from the API on February 26, 2027.
Deadline: 2027-02-26 · Checked:
Action: Migrate transcription workloads to gpt-live-transcribe or gpt-transcribe and regression-test accuracy, diarization, latency and cost before February 26, 2027.
All records checked against official sources on 2026-09-04.
Anthropic · active
Anthropic released Python SDK v1 on August 20 with Python 3.10+, httpx2, removed legacy APIs and sampling parameters, async raw-response parsing changes, and stricter AnthropicBedrock region handling.
Effective: 2026-08-20 · Checked:
Action: Pin the current SDK while preparing the upgrade; move to Python 3.10+, replace custom httpx objects with httpx2, remove legacy surfaces, update async parsing and configure an explicit Bedrock region before staging v1.
Anthropic · active
Starting with the April 16, 2026 launch of Claude Opus 4.7, non-default temperature, top_p, and top_k values return HTTP 400; Anthropic recommends omitting them and using prompting.
Effective: 2026-04-16 · Checked:
Action: Remove temperature, top_p and top_k overrides from affected requests and use prompting to guide behavior.
Anthropic · completed
Anthropic confirms that Claude Opus 4.1 was retired on August 5, 2026; all Claude API requests to claude-opus-4-1-20250805 now return an error, and Anthropic recommends Claude Opus 5.
Deadline: 2026-08-05 · Checked:
Action: Remove claude-opus-4-1-20250805 from production configuration, migrate to Claude Opus 5, and regression-test behavior, latency, token use and cost.
Anthropic · active
Anthropic says current SDK versions make client.beta.files and client.beta.skills stop sending their legacy beta headers and return stable client response shapes.
Effective: 2026-08-27 · Checked:
Action: Audit client.beta.files and client.beta.skills usage, update code for stable client response shapes, and regression-test serialization and error handling before upgrading SDKs.
Google · active
Google’s current Gemini 3.7 Flash migration checklist requires removing deprecated sampling parameters and prefilled model turns, replacing thinking_budget with thinking_level, and using previous_interaction_id for multi-turn state.
Effective: 2026-07-21 · Checked:
Action: Remove deprecated sampling parameters and prefilled model turns; use thinking_level and previous_interaction_id where appropriate; add regression tests for HTTP 400 failures.
Google · upcoming
Google will shut down gemini-omni-flash-preview on September 30, 2026 and names gemini-omni-1.1-flash as the replacement.
Deadline: 2026-09-30 · Checked:
Action: Replace gemini-omni-flash-preview with gemini-omni-1.1-flash and regression-test multimodal behavior, tool use, latency and cost before September 30.
Google · completed
Google's Gemini Robotics ER 1.6 shutdown date passed August 31; current service state unconfirmed.
Deadline: 2026-08-31 · Checked:
Action: Treat the endpoint as unsupported, migrate to gemini-robotics-er-2-preview, and verify production behavior without assuming the 1.6 endpoint is available or unavailable.
Google · corrected
Correction: Google’s current Gemini API deprecation table lists gemini-2.5-pro with no announced shutdown date. Kingy has withdrawn the earlier October 16 retirement claim.
Effective: 2026-08-13 · Checked:
Action: Remove October 16 from internal shutdown plans unless Google publishes a new official date; continue monitoring the Gemini API deprecation table.
Google · completed
Google’s current lifecycle table lists August 17, 2026 as the shutdown date for three Imagen 4 API model IDs; that date has passed, and Google names gemini-3.1-flash-image as the replacement.
Deadline: 2026-08-17 · Checked:
Action: Remove the three Imagen 4 model IDs from production and migrate to gemini-3.1-flash-image; re-test image quality, prompt adherence, safety, latency and cost.
OpenAI · upcoming
OpenAI deprecated Agent Builder on June 3 and scheduled the product to shut down on November 30, 2026. ChatKit remains available.
Deadline: 2026-11-30 · Checked:
Action: Export and inventory Agent Builder workflows, choose a target architecture, rebuild and regression-test tools, state, guardrails and ChatKit behavior, then cut over with rollback before November 30.
OpenAI · completed
OpenAI says the Assistants API was officially sunset on August 26, 2026 and is no longer available. Remaining integrations must move to the Responses API; Conversations provide durable state where needed.
Deadline: 2026-08-26 · Checked:
Action: Migrate any remaining Assistants API integration now. Map Assistants to prompts or application configuration, Threads to Conversations, Runs to Responses and Run Steps to Items, then re-run tool, state, safety, latency and cost tests.
OpenAI · active
OpenAI cut GPT-5.6 Sol API pricing to $4 per million input tokens and $20 per million output tokens on August 21, 2026; OpenAI says the promotional rate lasts at least through November 21.
Effective: 2026-08-21 · Checked:
Action: Refresh cost models and budgets, but keep a post-promotion price assumption because OpenAI guarantees the promotional rate only through at least November 21, 2026.
OpenAI · upcoming
OpenAI deprecated gpt-image-1-mini, gpt-image-1.5 and chatgpt-image-latest and will remove them from the API on December 1, 2026.
Deadline: 2026-12-01 · Checked:
Action: Replace retiring GPT Image model IDs with gpt-image-2 in a test environment and re-baseline generation, editing, transparency, safety, latency and cost before December 1.
OpenAI · completed
OpenAI lists gpt-5.2-chat-latest and gpt-5.3-chat-latest under past deprecations after their August 10, 2026 removal date and recommends gpt-5.6-sol.
Deadline: 2026-08-10 · Checked:
Action: Remove gpt-5.2-chat-latest and gpt-5.3-chat-latest from production configuration, migrate to gpt-5.6-sol, and re-test prompts, tools, latency and cost.
OpenAI · upcoming
OpenAI will remove whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe and gpt-4o-transcribe-diarize from the API on February 26, 2027.
Deadline: 2027-02-26 · Checked:
Action: Migrate transcription workloads to gpt-live-transcribe or gpt-transcribe and regression-test accuracy, diarization, latency and cost before February 26, 2027.