generated: '2026-07-22' method: searched source: kb.dxfeed.com + live probes 2026-07-22 versioning: scheme: uri-path (Fundamentals /v0.1); dxLink protocol version negotiated in SETUP (0.1); client SDKs versioned per repo (GraalVM-based Graal APIs supersede the legacy C/.NET/Python APIs) deprecation: policy_url: null sunset_header: false note: 'No public deprecation policy or RFC 8594 Sunset support found. Observable lifecycle signal: legacy SDKs (dxfeed-c-api, dxfeed-net-api, dxfeed-python-api) are superseded by the Graal-based SDK family; old kb URLs (/en/data-access/rest-api.html) redirect to page-not-found.' status_page: null status_page_note: 'No public status page: status.dxfeed.com does not resolve; none linked from dxfeed.com or kb.dxfeed.com. (The GitHub org even contains a private-use Atlassian Statuspage API wrapper, but no public page.)' sla: url: null note: Uptime/SLA commitments are contractual (institutional market-data agreements), not published. deprecated_operations: [] deprecated_operations_note: No operations flagged deprecated:true in the Fundamentals OpenAPI.