# Change history: Usage and limits

[← Changelog](/docs/changelog). Entries: 13.

- 2026-10-01 [NEW-1001-18: recentCallsDataSince field in GET /v1/ai/usage](/docs/changelog/2026-10-01#new-1001-18-recentcallsdatasince-field-in-get-v1-ai-usage)
- 2026-10-01 [BC-1001-27: string parameters no longer accept arrays and objects](/docs/changelog/2026-10-01#bc-1001-27-string-parameters-no-longer-accept-arrays-and-objects)
- 2026-09-16 [NEW-0916-8: Cowork off-peak and quota-relief keys now always arrive](/docs/changelog/2026-09-16#new-0916-8-cowork-off-peak-and-quota-relief-keys-now-always-arrive)
- 2026-08-12 [NEW-0812-7: the machine schema now describes the live app, AI and telephony methods](/docs/changelog/2026-08-12#new-0812-7-the-machine-schema-now-describes-the-live-app-ai-and-telephony-methods)
- 2026-08-11 [NEW-0811-4: off-peak hours are visible in the Cowork/Code subscription and in the exhausted-quota refusal](/docs/changelog/2026-08-11#new-0811-4-off-peak-hours-are-visible-in-the-cowork-code-subscription-and-in-the-exhausted-quota-refusal)
- 2026-08-11 [FIX-0811-5: the next off-peak hour is counted from the hour boundary, not from the minute of the request](/docs/changelog/2026-08-11#fix-0811-5-the-next-off-peak-hour-is-counted-from-the-hour-boundary-not-from-the-minute-of-the-request)
- 2026-08-06 [BC-0806-20: quota consumption is reported as percentages only](/docs/changelog/2026-08-06#bc-0806-20-quota-consumption-is-reported-as-percentages-only)
- 2026-07-11 [FIX-0711-3: GET /v1/ai/quota pacing can now be populated by the platform by default (gradual rollout)](/docs/changelog/2026-07-11#fix-0711-3-get-v1-ai-quota-pacing-can-now-be-populated-by-the-platform-by-default-gradual-rollout)
- 2026-07-10 [NEW-0710-16: AI quota pacing: pacing field in the response and 429 ai_pacing_limited error](/docs/changelog/2026-07-10#new-0710-16-ai-quota-pacing-pacing-field-in-the-response-and-429-ai_pacing_limited-error)
- 2026-07-10 [FIX-0710-25: pacing.active in GET /v1/ai/quota no longer reports an active limit when the quota is zero](/docs/changelog/2026-07-10#fix-0710-25-pacing-active-in-get-v1-ai-quota-no-longer-reports-an-active-limit-when-the-quota-is-zero)
- 2026-07-07 [NEW-0707-8: Company AI quota is available via the API](/docs/changelog/2026-07-07#new-0707-8-company-ai-quota-is-available-via-the-api)
- 2026-07-02 [NEW-0702-9: GET /v1/ai/usage returns transcribed audio duration per model](/docs/changelog/2026-07-02#new-0702-9-get-v1-ai-usage-returns-transcribed-audio-duration-per-model)
- 2026-06-29 [NEW-0629-2: AI quota off-peak hours schedule](/docs/changelog/2026-06-29#new-0629-2-ai-quota-off-peak-hours-schedule)