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Known Limitations

Current gaps and constraints users should account for.

API parity status

Papyrium has closed several parity gaps in the current branch, but some advanced behavior remains partial.

Branch highlights (current)

  • Signature flow: supports external signer integration for real signed bytes; metadata still round-trips via Instant JSON.
  • Content editing: validated inputs and enforced single active editing session lifecycle.
  • Save lifecycle: concurrent ensureChangesSaved() calls are coalesced to a single save operation.
  • Persistence: documentOutline now round-trips through Instant JSON.
  • Event fidelity: normalized form value payload snapshots and stronger typings for comments/crop events.
  • Geometry: extracted and unit-tested page/client transform helpers.

Practical constraints

  • exportPDF(flags) semantics are not fully parity-complete yet.
  • Realtime collaboration semantics are not parity-complete (connected clients remain compatibility state).
  • Custom renderer/UI configuration runtime application is still limited.
  • Verify integration-critical flows against your exact runtime version.

Recommendation

Pin versions in production and review docs updates before upgrading.