generated: '2026-07-20'
method: searched
source: https://developers.gonitro.com/docs/api-reference/changelog
scheme: dated (month-labelled updates; no semantic version — backwards-compatible-by-design)
current: public-api
first_released: '2025-09'
entries:
- date: '2026-07'
  additions:
  - Extract Fillable Form Data (AcroForm field data as JSON/XFDF/FDF/CSV)
  breaking: false
- date: '2026-06'
  additions:
  - Smart Detect Form Fields (detect fillable-field bounding boxes)
  - Compress transformation (smallest-size PDF)
  - Fill Forms generation
  - Create Fillable Forms generation
  improvements:
  - Fill Forms now accepts XFDF and FDF in addition to CSV and JSON
  breaking: false
- date: '2026-05'
  additions:
  - Watermark, Optimize, OCR transformations
  - Invoice extraction
  - PDF to PDF/A conversion (PDF/A-1b, 2b, 3b)
  improvements:
  - Platform file-size limit raised 25MB to 100MB
  - Platform page-count limit raised 200 to 500 pages per document
  breaking: false
- date: '2026-03'
  improvements:
  - Create Document by Envelope ID accepts multiple file types
  deprecations:
  - Convert File to PDF replaced by Create Document by Envelope ID
  - Get Converted File by Job ID replaced by Create Document by Envelope ID
  - Get Conversion Job Status replaced by Create Document by Envelope ID
  breaking: false
- date: '2026-02'
  additions:
  - Download Sealed Document by ID
  - Platform transformations (Compress, Flatten, Rotate, DeletePages, Split, Merge, Redact, Set Properties, Protect, Unprotect)
  - Platform extractions (Text, Forms, Tables, PII Bounding Boxes, Text Bounding Boxes, Properties)
  - Platform conversions (PDF to Office, Office to PDF, PDF to Image, Image to PDF)
  breaking: false
- date: '2026-01'
  additions:
  - Update Field by ID
  improvements:
  - Create Field(s) by Document ID accepts multiple fields
  breaking: false
- date: '2025-12'
  additions:
  - Delete Field by ID, Delete Fields by IDs
  - Download Audit Trail of Envelope
  - Update/Delete Participant by ID, Delete Participants by IDs
  - Reorder Documents for Envelope, Update Document by ID
  breaking: false
- date: '2025-11'
  additions:
  - List Fields for Envelope
  improvements:
  - Create Participant(s) accepts multiple participants
  breaking: false
- date: '2025-10'
  additions:
  - Delete Envelope by ID, Cancel Envelope by ID, Send Reminders for Envelope
  breaking: false
- date: '2025-09'
  highlights:
  - First version of the public API
  breaking: false