Changelog

Versioning policy

The Lise GraphQL API follows schema evolution principles:

• Additive changes (new types, new optional fields, new queries/mutations) are deployed without version bumps. Existing integrations continue to work.
• Breaking changes (removing fields, changing types, renaming operations) are announced in advance and deployed with a deprecation period.
• Deprecated fields are marked with @deprecated in the schema and grouped in the API Reference.

How to stay up to date

1. Monitor this changelog for announcements.
2. Regenerate your client types after schema changes if you use code generation.
3. Check the schema reference — deprecated fields are visually marked.

Release history

2026-07-28 — FIX market data + Lise branding

• Documented the FIX 4.4 market-data feed (logon, security list, L2 snapshots and updates).
• Renamed documentation branding from DLTTSS to Lise.

2026-07-02 — Documentation launch

• Published external API documentation site.
• Documented authentication, pagination, error handling, and rate limits.
• Auto-generated schema reference from GraphQL SDL.

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For questions about upcoming changes or to request new API capabilities, contact your account manager.