The last week of August is the busiest stretch on the board: seven deadlines in six days, starting with the OpenAI Assistants API on the 26th

Another quiet ingestion night — 56 monitored sources fetched clean, no new sunsets and no date changes, and the discovery scan surfaced only noise. So instead of padding, here is the shape of the week ahead: 26 through 31 August is the densest cluster on the whole calendar, seven separate deadlines in six days. It opens with the OpenAI Assistants API removal on 26 August (three days out) and closes with a four-way pile-up on the 31st. All eleven sub-30-day entries were re-checked against their primary sources tonight and all hold, including the Microsoft Sentinel SAP connector retirement (14 September), re-confirmed against Microsoft's release-communications API. The circulating InstantDB / Instant Cloud shutdown report still has no official source, so it stays on the watch list, not the board.

Quiet feeds again tonight — 56 monitored sources fetched clean, no new entries and no date changes. Rather than pad a short night, here is the one thing worth planning around: the calendar is about to get crowded.

Seven deadlines, six days: 26–31 August

Nowhere else on the board are the countdowns this tightly packed. If you own code or workflows touching any of the following, this is the week to act, in order:

26 August — the OpenAI Assistants API is removed (three days out). The Responses API is the migration path; state moves from a managed thread object to passing previous_response_id. If you still call /v1/assistants, /v1/threads, or /v1/runs, that is the code to move first.
27 August — Convictional shuts down. The B2B dropship/trade platform ends access; exporting your catalog and order data before the cutoff is the whole task.
28 August — OCI DevOps retires its Oracle Linux 7 build runners. Pipelines pinned to the OL7 runner image need to move to a supported runner; the failure mode is a broken build, not a warning.
31 August — a four-way pile-up. GitHub Spark (the AI app-builder preview closes), Flowise (the hosted cloud tier winds down; self-host remains), the New Relic drop-filter-rules API (the older mutations stop; move to the pipeline-cloud-rules equivalents), and the Power Automate mobile app (the iOS/Android app is retired; flows keep running, the phone client does not).

That is seven distinct end-dates between Tuesday and Sunday. Each links to a full entry with the official source, what breaks, and the migration path where one exists.

Then a short breather

After the 31st the board loosens up: OpenSSL 3.0 end of life (7 September), the GitHub Copilot MAI-Code-1-Flash deprecation (10 September), the Relay paid shutdown and the Microsoft Sentinel SAP connector agent retirement (both 14 September — the Sentinel date, which our monitor cannot read off Microsoft’s JavaScript-rendered updates page, was re-confirmed tonight against Microsoft’s release-communications API), the OpenAI Sora 2 video API preview shutdown (24 September), the Azure Automation Python/PowerShell runtime cut-off (30 September), the Exchange Web Services in Exchange Online block (1 October), and further out the Cloudflare Workers KV legacy API (15 October) and Azure Databricks Runtime 10.4 LTS end of life (1 November). The full board, with live countdowns, is on the calendar.

Watch, not board: InstantDB

No change since last night: the circulating report that InstantDB is winding down its hosted Instant Cloud service (cloud apps said to close 31 August 2027) still traces back only to a user’s forwarded email quoted on Hacker News. There is still nothing on instantdb.com, its docs, or its status page, and the GitHub repository shows no sunset notice. No official source, no entry — it stays on the watch list until Instant says something publicly, at which point we will add it with the dates verified against that source.

Want this week’s deadlines checked against your own repo instead of read off a list? The lastcall CLI — npx lastcall.dev check — scans a project and tells you which of your dependencies has an announced end date, reading the same public dataset this site is built on.