Changelog

July 2026

Schematron, workflow constants, and reliability

• Schematron validation with author-uploaded rule files
• Reusable workflow constants in the c.* CEL namespace
• Full-source schema editing and more reliable tabular schema inference
• Hardened execution timeouts, cancellations, artifact storage, and retention

June 2026

Authoring, portability, and access

• Dedicated Tabular validator editor with column checks and row-level CEL rules
• Submission metadata available to every validator through submission.*
• Portable workflow import and export with .vaf archives
• SHACL validation moved to an isolated container backend
• Per-channel workflow access controls for the web app, MCP, and x402
• Clearer CEL authoring errors and refreshed validation results

May 2026

Versioned and verifiable workflows

• Native CSV validation with column schemas and cross-column row rules
• SHACL validation with author-defined SHACL assertions
• Versioned workflows with immutable history and exact integer validator versions
• Step input (i.*) and output (o.*) namespaces with shared signal promotion
• Downloadable evidence manifests and bundles with retention-aware hashes
• Recorded and optionally verified validator container image digests

April 2026

Auditability and account security

• Organization audit logs with filters, retention, and streaming exports
• Multi-factor authentication and stronger signup bot protection
• MCP and x402 workflow discovery and authentication improvements
• Unified signal mapping and schema-driven workflow input contracts
• Hardened validation runtimes, storage access, and cloud worker authentication

March 2026

Advanced validator and workflow improvements

• EnergyPlus™ templates and managed weather-file resources
• FMU step-level uploads for reusable simulation models
• Workflow JSON views and JSONPath filter expression support
• Refactored action plugins and signed credential integrations
• Stronger browser and deployment security, including CSP and rate limits

February 2026

Cloud operations and security

• Compute metering for cloud-hosted validations
• Validator enable/disable toggles
• Execution backend status checks
• Security hardening and dependency updates

January 2026

Cloud deployment and billing

• Cloud deployment support (GCP Cloud Run)
• Stripe billing integration for cloud plans
• Organization policy registry
• THERM validator improvements

Late 2025

Self-hosted Pro and advanced validators

• Self-hosted Pro edition with private PyPI
• Support for validating EnergyPlus™ and IDD files
• Team and guest access management
• Validator configuration consolidation

October 2025

Marketing site launched

The validibot.com marketing site goes live.