April 30, 2026 WitnessAI Update

WitnessAI Release: April 30, 2026

New Features

Feature Updates

Performance, Reliability, & API Updates

Machine Learning Updates

• Increased the maximum file size limit for anonymizer processing, resolving issues where large text file uploads were rejected.
• Added line-level deduplication in the anonymization pipeline for highly repetitive text, reducing processing time for large files.

Fixed Issues

Data Protection

• Fixed some data types not triggering Data Protection guardrail detection, including tokenized card numbers and SAQ form identifiers.
• Fixed false positive detections where common English words starting with 'cav' (e.g., 'caveat', 'cave') were incorrectly flagged as Authentication Credentials.
• Fixed Data Protection guardrail not triggering for large text file uploads (50 MB and above).
• Fixed an issue where changing a Data Protection policy action from Block to Warn prevented some prompt submissions in Claude desktop and web.
• Fixed streaming responses not being buffered when credit card numbers were included in Japanese-language prompts. Previously, some responses containing sensitive data in Japanese were streamed instead of buffered as expected.

Known Issues

Breaking Changes