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Product Updates

Changelog

Track TaxStreem API changes, new developer features, reliability improvements, and security updates across Flux, Prism, Numens, and the core platform.

Latest release

v1.4.0

API updates

14

Products covered

4

FeatureFluxv1.4.0

Bulk filing review before submission

June 12, 2026

Flux batch filing now includes a pre-submit review response so teams can catch authority, Tax ID, and duplicate line-item issues before committing a live filing.

Included in this update

  • Added validation summaries for VAT and WHT batch filings.
  • Returns blocking errors and advisory warnings in a single response.
  • Improved duplicate detection for reference numbers inside a batch.
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APIPlatformv1.3.2

Webhook delivery health events

May 28, 2026

New webhook status events make it easier to monitor delivery latency, retries, and endpoint failures from your own observability tools.

Included in this update

  • Added delivery.started, delivery.retrying, and delivery.failed event types.
  • Included attempt count, next retry time, and response status metadata.
  • Documented idempotency guidance for replay-safe webhook consumers.
View related docs
FeaturePrismv1.3.0

Prism vendor upload matching

May 10, 2026

Prism can now identify previously uploaded vendors during invoice analysis and return confidence signals for reconciliation workflows.

Included in this update

  • Added vendorMatch and confidence fields to invoice analysis responses.
  • Improved matching for names with punctuation, spacing, and casing differences.
  • Added guidance for keeping vendor records current through scheduled uploads.
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ImprovementNumensv1.2.4

Faster Numens transaction classification

April 22, 2026

Numens classification responses are now faster for high-volume integrations while preserving the same request and response contract.

Included in this update

  • Reduced p95 latency for batch classification requests.
  • Improved handling for mixed VAT, WHT, CIT, and exempt transaction sets.
  • Expanded response examples for taxable and non-taxable transaction outcomes.
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SecurityPlatformv1.2.0

Encrypted authority credentials

April 3, 2026

Production filings can now include encrypted authority credential payloads using AES-256-GCM before they reach TaxStreem APIs.

Included in this update

  • Added encryptedPayload support for sensitive production credential fields.
  • Documented nonce, tag, and shared-secret handling expectations.
  • Added request examples for sandbox and live API key prefixes.
View related docs