generated: '2026-07-20'
method: searched
source: https://docs.onsi.com/docs/changelog
scheme: dated-updates
current_version: v1
entries:
  - date: '2026-02'
    label: Unsetting Bank Details & CSV V2
    breaking: false
    highlights:
      - Partners can now remove a member's existing bank details via the API
        by setting `accountDetails` to null on Update/Replace/Batch operations.
      - New CSV upload V2 (PUT /v2/members/jobs/csv) removes existing bank
        details when bank columns are present but empty (V1 preserves them).
  - date: '2025-07'
    label: Pay Cycle APIs
    breaking: false
    highlights:
      - Added APIs to view Pay Cycles and their deductions (getPayCycles,
        getPayCycle, getPayCycleDeductions).
  - date: '2024-12'
    label: Member Replace API
    breaking: false
    highlights:
      - Introduced PUT /v1/members/{id} (replaceMember) to replace member data
        entirely without diffing current vs desired state.
  - date: '2024-05'
    label: Idempotency Support
    breaking: false
    highlights:
      - Added x-idempotency-key support across all mutation endpoints with
        7-day key retention.
  - date: '2024-03'
    label: API Launch
    breaking: false
    highlights:
      - Initial release of the Onsi (BMO Partner) API.