{"date":"2026-10-15","title":"Breaking changes digest — Thursday, October 15, 2026","summary":"1 breaking MCP tool change.","window_start":"2026-10-14T14:38:38.504Z","window_end":"2026-10-15T14:38:38.504Z","published_at":"2026-10-15T14:38:38.775Z","markdown":"# Breaking changes digest — Thursday, October 15, 2026\n\nCovers 2026-10-14 14:38 UTC to 2026-10-15 14:38 UTC. Sources: official status pages and docs for 40 AI and developer APIs (Upstream), and 2,340 MCP servers checked every 15 minutes (Toolweather).\n\n**In short:** 1 breaking MCP tool change.\n\n## AI and developer APIs\n\nUpstream started tracking provider status at 2026-10-15 14:14 UTC, so this first issue only covers status changes since then.\n\nNo status changes in this window.\n\nNot fully operational at 2026-10-15 14:38 UTC:\n- **OpenAI** — degraded: Delayed Costs data in the Compliance API\n- **Twilio (incl. SendGrid)** — degraded: SMS Delivery Failures from France to a Subset of Twilio Short Codes (https://stspg.io/lmj9pt4dcc8b); SMS Delivery Failures from Network Subscribers to Twilio Colombia Phone Numbers (https://stspg.io/97g28t43zwmz)\n- **Cloudflare** — partial outage: Increased HTTP 502 Errors (https://www.cloudflarestatus.com/incidents/mxthd6onaplz); Audit Logs v2 ingestion is missing multiple Cloudflare products  (https://www.cloudflarestatus.com/incidents/hpmrg8d5vwr6)\n- **Clerk** — degraded: Development instances only - Apple rejecting emails\n- **Zoom** — maintenance: Zoom Chat Update: October 06, 2026 (No Operational Impact) (https://stspg.io/rjs57r3bw2c6)\n\n## Model deprecations and retirements\n\nNo new deprecations or retirements on the tracked deprecation pages.\n\nShutting down in the next 30 days (32 model IDs):\n- 2026-10-22 — **Google AI (Gemini / Vertex AI)**: veo-3.1-lite-generate-preview, veo-3.1-generate-preview, veo-3.1-fast-generate-preview. Suggested replacement: gemini-omni-1.1-flash\n- 2026-10-23 — **OpenAI**: gpt-3.5-turbo-0125, gpt-3.5-turbo, gpt-3.5-turbo-completions, gpt-4-0613, gpt-4, gpt-4-0613-completions, gpt-4-completions, gpt-4-1106-preview, gpt-4-turbo, gpt-4-turbo-2024-04-09, gpt-4-turbo-completions, gpt-4.1-nano and 16 more\n- 2026-10-31 — **Mistral AI**: zai-glm-5-2. Suggested replacement: Z.ai GLM 5.3\n\n## Pricing\n\nNo changes on the tracked pricing pages (OpenAI, Anthropic, Google).\n\n## MCP servers\n\nBreaking tool changes:\n- 2026-10-15 12:51 UTC — **io.github.troothllc/trooth-network**: tool removed `trooth_compare_companies`\n\nPlus 84 non-breaking changes across 26 servers (descriptions, optional parameters, output schemas).\n\nUp/down and login tracking started 2026-10-15 14:37 UTC, so this issue only covers part of the window for those.\n\n---\n\nData notes: Upstream status tracking began 2026-10-15 14:14 UTC. \"Status change\" means the provider's own status page changed state. Model dates come from each provider's deprecation page. Live data: https://upstream-api.pages.dev · JSON: /digest/2026-10-15","data":{"counts":{"status":0,"models":0,"pricing":0,"deps":0,"breaking":1,"down":0,"back":0,"auth":0},"quiet":false,"status":[],"open_now":[{"provider":"openai","indicator":"degraded","description":"Partial System Degradation","incidents":[{"name":"Delayed Costs data in the Compliance API","status":"identified","impact":"minor","updated_at":"2026-10-14T20:00:36Z"}]},{"provider":"twilio","indicator":"degraded","description":"Partially Degraded Service","incidents":[{"name":"SMS Delivery Failures from France to a Subset of Twilio Short Codes","status":"identified","impact":"minor","updated_at":"2026-10-15T07:33:34.433-07:00","url":"https://stspg.io/lmj9pt4dcc8b"},{"name":"SMS Delivery Failures from Network Subscribers to Twilio Colombia Phone Numbers","status":"investigating","impact":"minor","updated_at":"2026-10-15T07:25:36.082-07:00","url":"https://stspg.io/97g28t43zwmz"},{"name":"SMS Delivery Receipt Delays from a 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