Changelog

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Updates on new features, key enhancements, and fixes.

Aug 2026

New Features

Receipt Validation API Endpoints (Beta) – Validate a receipt directly in a single API request without setting up a campaign first: send the receipt with rules for purchase dates, merchants, product codes, serial numbers, line items, balance owing, fraud checks, and SmartValidate prompts. Available on Advanced plans and above; the beta request/response contract may change. See Receipt Validation.
Taggun Receipt Portal (Preview) – Invite-only preview of the new customer portal: configure validation campaigns, review submissions and exceptions, record reward, reject, or manual-review decisions, and export receipt records. Contact [email protected] for access.
Refreshed Developer Documentation – The docs have been fully reorganised and expanded; see the July 2026 entry below.

Enhancements

Data Extraction – More accurate total-amount selection (amount paid, balance owing, negative payments) and better date, time, currency, merchant, receipt-number, and invoice-number interpretation, including Arabic and multilingual receipts. See Data Fields That Taggun Extracts.
Line Item Processing – Repeated items are preserved instead of merged, with improved quantities, unit prices, totals, SKUs, categories, and fees. See Line Item Extraction.
Digital Tampering Detection – Stronger detection of semantic edits, digital overlays, and AI-generated receipt patterns, with fewer false positives from harmless artefacts. See Fraud Detection.
Performance & Reliability – Safer handling of very large images, better recovery from incomplete processing results, and improved capacity, retry behaviour, and worker-health detection under load.

Bug Fixes & Security Updates

Stricter safeguards for URL-based validation requests, including protection against local and private-network targets.
Fixed empty or malformed processing responses and duplicate line-item behaviours in difficult layouts.
Improved recovery from memory pressure, stalled workers, and unhealthy instances, with better isolation between application and security monitoring.

July 2026

Documentation restructure

The developer docs have been reorganised around the trial journey and Taggun's feature tiers. Key changes include a consolidated Supported Countries & Languages page and new pages for Security, Privacy & Data Residency, Performance & Response Times, Error Handling, and Plans & Feature Access. Legacy URLs are planned to redirect as part of the publication migration.

Jun 2026

Pricing Update

Refreshed self-serve plans – The minimum plan is now $28/month with a new $99/month Startup tier, billed monthly or yearly (cheaper). Existing $4/month customers keep their pricing until further notice. See pricing.

New Features

Upcoming Taggun Dashboard – A new dashboard for reviewing scans, tracking usage, and managing receipt workflows is in preparation; contact [email protected] for early access.
Richer Product Line Item Extraction – Product-level details captured in a more usable way: names, categories, quantities, unit prices, and totals. See Line Item Extraction.
Improved Campaign Validation Results – Validation responses return key details more consistently for easier rule application and reconciliation.

Enhancements

Digital Tampering Detection – Stronger protection against AI-generated, edited, copied, or altered receipts, with decision logic that reduces false positives.
Data Extraction – More accurate receipt numbers, invoice numbers, currencies, merchant tax IDs, dates, and regional fields, with more consistent responses across extraction and validation.
Line Item Accuracy – Better handling of repeated items, quantities, unit prices, totals, and categories, plus improved calculations when item totals are missing or merged.
Global Receipt Processing – Better date parsing and regional validation, including improved handling of French-language merchants and Khmer documents. See Supported Countries & Languages.
Performance & Reliability – Improved large-image handling, more consistent file handling and responses, and better platform health checks.

Bug Fixes & Security Updates

Strengthened protection for sensitive user and receipt text in internal logs.
Applied security dependency updates and platform hardening, and reduced memory pressure in OCR and image processing.
Fixed file-handling and metadata edge cases, and parsing/validation edge cases affecting dates, totals, receipt numbers, invoice numbers, and merchant tax IDs.

Feb 2026

New Features

AI-Generated Receipt Detection – Tamper detection now analyses text content for synthetic patterns such as fake addresses, phone numbers, and generic product names. Works automatically with existing scanning and validation flows and is fully backward compatible.
Non-Receipt / Incomplete Receipt Detection – Identifies images without enough text to be a valid receipt: scanning returns zero confidence for key fields and validation flags the submission as not genuine. Configurable per campaign.
Enhanced Duplicate Detection Toggle – Enhanced duplicate matching can now be switched on or off per account.
Runtime Application Security – Added runtime protection to the scanning service against common web application attacks.

Enhancements

AI-Detection Accuracy – 28 new detection patterns, model-agnostic coverage of known AI generators, improved handling of combined indicators, and fewer false positives.
Input Handling – Accented characters are now accepted in input validation, with improved French-language merchant matching.
Date Extraction – Year boundaries are now handled automatically.

Bug Fixes & Security Updates

Fixed security vulnerabilities in database query handling and URL request handling.
Fixed duplicated text-processing tasks and confidence scores being incorrectly reset during non-receipt detection.
Upgraded key dependencies and applied vulnerability fixes across the platform.

Oct 2025

New Features

Advanced Semantic Similarity Detection – Next-generation fraud detection combining semantic line-item analysis, image metadata validation, and total-amount verification to catch combined-receipt fraud that traditional comparison methods miss.

Enhancements

Similarity Infrastructure – The validation endpoint now stores productLineItems and imageMetadata for more accurate similarity detection, with better corruption detection and recovery.
Performance – Optimised database index creation and build processes for faster operations and improved response times.
Tamper Detection – Refined thresholds to reduce false positives, with improved error handling and monitoring integration.

Bug Fixes

Fixed tamper-detection response formatting for a consistent API response structure.
Corrected module resolution errors preventing QR-code processing.
Fixed missing vector-search index directories in deployment pipelines and resolved cloud-service compatibility issues.

Aug 2025

New Features

Digital Receipt Detection – Machine-learning powered detection of digitally generated receipts to strengthen fraud prevention.
PDF Native Processing – Local PDF conversion for faster, more reliable document handling without external dependencies.

Enhancements

Tamper Detection – Improved accuracy with better downsampling, colour/symbol analysis, copy-paste detection, and smarter timezone handling
Arabic Receipt Processing – More accurate text extraction and formatting for Arabic
Robust PDF Handling – Smarter metadata comparison and timezone management to reduce false tamper flags
Performance Optimisation – Lower memory usage, faster colour analysis, and container-based isolation for duplicate/similarity checks
Campaign Validation – More reliable handling of undefined constraints, empty fields, and similarity
Data Quality – Stronger line item parsing, fallback invoice number extraction, and more robust date/time handling.

Extra Fixes

Fixed Microsoft Reporting Services docs incorrectly flagged as tampered.
Resolved PDF metadata timezone comparison
Fixed campaign validation failures with undefined constraints
Corrected edge-case similarity matching
Fixed validation issues with zero totals
Resolved HEIF file format issues when OCR returned empty results.

Jun 2025

New Features

Image Format Conversion – Auto-conversion of unsupported image formats to improve OCR
Dynamic Data Augmentation – Real-time enrichment data updates without redeployment.

Enhancements

Robust Image Handling – Resizing, fallback mechanisms, and file extension validation.
Structured Data Parsing – More accurate line item extraction and newline handling.
Stability & Security – Stronger tamper detection, upgraded dependencies.
Similarity Matching – Better scoring, normalisation, and expanded datasets.

Extra Fixes

Fixed vendor recognition mismatches.
Resolved data enrichment inconsistencies.
Corrected augmentation logic for edge cases.

May 2025

New Features

Problematic Receipt Formats – Normalisation for tricky formats to improve accuracy.
HEIC to JPEG Conversion – Automatic fallback for failed OCR parsing.

Enhancements

Line Item Extraction – Better handling of multiline descriptions.
Augmentation Improvements – Stronger normalisation, pattern matching, and new augmentations.
Merchant Name Normalisation – Reduced misclassification of similar terms.
Tamper & AI Receipt Detection – Fewer false positives and more reliable results.

Bug Fixes

Fixed confidence calculation logic.
Resolved augmentation merge issues.
Corrected handling of null category values.
Improved preprocessing for problematic input formats.

Apr 2025

New Features

Fake Digital Receipt Detection – Flags small PNGs under 800KB likely to be fake.
Location ID + Confidence – Provides exact match IDs and confidence scores from merchant location lists.

Enhancements

Location Normalisation – More precise address matching.
Handwriting Detection – 60% threshold for classification to reduce false positives.
Memory Optimisation – Lower Python process usage during tamper checks.

Bug Fixes

Fixed Python runtime error in tamper detection.
Corrected Infinity value parsing bug.
Fixed negative payment misinterpretation.
Corrected address normalisation edge cases.

Feb 2025

New Features

Added comprehensive tamper detection system to validation endpoints for enhanced security and data integrity verification
Expanded language support with Hebrew language capability (use language parameter 'he') and improved Japanese currency handling
Introduced allow/block list system for managing allowed and blocked items during receipt validation.

Key Enhancements

Price Processing
- Enhanced unit price inference through total price calculation for single-item entries
- Added support for decimal values in product quantities (e.g., weight or volume-based purchases)
- Improved handling of currencies without decimal places, particularly Japanese Yen
- Enhanced processing of negative amount extractions in line items (e.g., discounts)

Date Extraction

Improved pattern recognition for various date formats
Enhanced validation logic for ambiguous month/day combinations

Performance

Implemented parallel processing for similarity checks to reduce false negatives (activate with extractTime=True)
Added local FAISS integration for improved vector search capabilities

Bug Fixes

Fixed issues with duplicate tracking IDs
Resolved price inconsistencies between unit and total price calculations
Improved similarity check precision to prevent false positives
Fixed address-matching validation issues

Sep 2024

General fraud system enhancements
- Optimised backend processing for faster fraud checks and receipt analysis
- Updated user interface to highlight potential fraud flags and receipt types
Regional Support: Extended support for Vietnam, Singapore, Thailand (with Buddhist date handling), Indonesia, and Colombia.
Document Handling: Improved merchant tax ID and invoice number extraction.
Data Extraction: Enhanced line item extraction, merchant name normalisation, and date parsing.
Performance: Implemented concurrent processing in duplicate checking.

Jul 2024

Implemented advanced fraud detection
- Added detection for potentially fraudulent "photoshop" transactions
- Enhanced identification of duplicate expense entries
- Added capability to detect handwritten receipts as an increased fraud risk
Improved expense type categorisation
- Refined algorithms for more accurate automatic categorisation
- Expanded list of recognised expense categories

Apr 2024

Improved SKU identification: 15%+ accuracy boost in extracting product identifiers, ensuring better data reliability.
Enhanced line item extraction: Extracts quantity, description, unit price, and total price with improved precision.
New merchant normalisation & address verification: Recognises and matches merchants and addresses against a reference list, streamlining data processing.
Arabic language support: Expanded language capabilities to include Arabic text and documents, promoting global accessibility.

Jan 2024

Increased Language and Region-Specific Support
- Released a major change in our models to extract receipt data from more languages and regions, with consistently higher accuracy across data points, languages, and countries.
- Streamlined how we build new data points and country support — talk to us about your country or regional requirements.
Improved Long Receipts Processing
- Improved handling of long receipts, especially supermarket receipts, with better accuracy and stable results.
Bug fix: Fixed an issue when the currency code is not upper case.
Bug fix: Fixed merchantName to return an empty result when the receipt picture is not readable.

Sep 2023

New Feature: Line Item Extraction for All!
- Universal access to our refined line item extraction feature — every user can now retrieve detailed product information with enhanced accuracy and speed, with just a parameter tweak. See Line Item Extraction.
- Faster processing: 30–50% reduced processing time on lengthy receipts and intricate invoices.
- New data points available, from tailored customer insights to regional specifics like Brazilian receipt details.
Bug Fix: Fixed an intermittent 502 error — implemented a faster model with fallback to the original model when required.

April 2023

New Product: Receipt Validation API
- Receipt validation technology for marketing campaigns that cuts costs, detects receipt fraud, supports scale, and enables seamless customer experiences. See Receipt Validation Fundamentals.
New Language: Japanese receipt extraction.
More breakthroughs in accuracy for merchant names.

September 2022

Improved accuracy of the Total Amount field as more diverse receipt formats came through.
Re-adjusted the confidence level threshold for OCR text to boost precision and robustness.
Major breakthrough on the line items feature ahead of public launch.
Improvements to currency code and location extraction for global clients.

July 2022

Improved merchant name and location accuracy using a new Named Entity Recognition (NER) model.
Improved invoice processing to handle more complex invoice formats.
Noticeably more robust handwriting recognition — great news for handwritten receipts, especially US restaurant receipts where tips and totals are commonly handwritten.

May 2022

Released a classification engine to categorise transactions, with customisable labels per client.
Improved line item accuracy — fewer duplicates and better detection on longer receipts (e.g., US grocery receipts).
Improved location detection and verification, including ID-based location mapping.
Improved date format detection for US receipts (month-first formats).
Improved the internal context classifier that differentiates receipts, invoices, and mobile screenshots.

March 2022

Product Line Items performance improved — response time reduced by 10–15%.
Australian Business Number verification is more robust — Taggun now hosts the database in-house, no longer relying on a third-party API.
Business Type Classification development underway for expense management customers.

February 2022

Focus this cycle is Line Items — more to report soon.
Line items were still account-enabled at this point in the changelog history; current availability is covered in Plans & Feature Access.

December 2021

Further accuracy and performance improvements for line item extraction (beta).
Improved OCR on PDF files, especially non-standard PDF formats.
Investigated Log4j vulnerabilities to ensure no customer impact.

October 2021

Upgraded to AWS Global Accelerator — over 30% faster time-to-first-byte in some regions, with instantaneous cross-region failover.
Improved total amount accuracy for European receipts.
Better payment type detection in Asia Pacific, plus Visa, MasterCard, and American Express.
Reduced average API response time through improved parallel processing.
Beta: line item details (name, quantity, unit price, total price).

August 2021

Migrated cloud customers to Microsoft for underlying image-to-text OCR — better accuracy in all languages, including handwriting.
Improved APM monitoring for faster response to delays or traffic spikes.
Improved the merchant name model to avoid generic stop words.

July 2021

Security fix: only HTTPS URLs are accepted for the URL parameter, preventing DNS rebinding attacks.
Groundwork for the Microsoft OCR migration.
Improved GeoNames detection for accented city names.
Fixed regressions in invoice number extraction.

June 2021

Moved the EU cloud server from the UK to France post-Brexit.
Fine-tuned ABN extraction for Australian customers.
Fixed GeoNames detection for cities with short names (e.g., Lyon).
Improved accuracy for ride-sharing app screenshots in Asia Pacific.
Improved receipt number detection for Hong Kong receipts.

April 2021

Implemented HMRC services for UK merchantVerification, since UK VAT validation no longer works directly with VIES.
Doubled cloud server capacity for faster response times and stability under load.
Continued merchant name accuracy improvements.
Improved handling of Singapore receipts, especially currency codes and amounts.

February 2021

Introduced the multi-tax feature — detection and extraction of multiple tax rates and amounts on a receipt. See Multi-Tax Handling.
Fixed an intermittent PDF processing bug causing 504 errors.
Resolved degradation with the ignoreMerchantName parameter.
Improved our Swagger API documentation.

January 2021

Major improvements to merchant name extraction, especially for French receipts.
Fixed a minor weakness in date format detection.
Improved OCR text quality.

More logs

Earlier release notes are not currently available in the public archive.