generated: '2026-09-19'
method: searched
source: https://complianceregistry.net/extensions/tessa-professional-services/v1/changelog
checked: '2026-09-19'
scope: >-
  The only dated changelog TESSA publishes covers the TESSA Professional Services A2A extension, served on the
  TESSA-operated Compliance Registry host (the route exists in the shared OpenAPI as
  extension_changelog_extensions_tessa_professional_services_v1_changelog_get and answers 421 on aiagent.tessa.tech).
  No changelog exists for the REST API, the MCP tool set (serverInfo.version 1.30.0 suggests many releases) or the
  agent card (version 1.1.0).
scheme: semver
current_version: 1.0.0
entries:
  - version: 1.0.0
    date: '2026-04-24'
    breaking: false
    highlights:
      - Initial release alongside the complianceregistry.net anchor launch.
      - 'Ships with: claim_status, claim_url, takedown_url, last_verified, source_urls, sub_vertical, service_types, industry, service_area, firm_profile, pricing, credentials, trust_signals.'
      - 'Paired taxonomies: /taxonomy/accessibility-services.json and /taxonomy/environmental-compliance-services.json.'
    schema: https://complianceregistry.net/extensions/tessa-professional-services/v1/schema.json
observed_versions:
  - {surface: OpenAPI info.version, value: 0.1.0, observed: '2026-09-19'}
  - {surface: Agent card version, value: 1.1.0, observed: '2026-09-19'}
  - {surface: MCP serverInfo.version, value: 1.30.0, observed: '2026-09-19'}
  - {surface: MCP server.json version, value: 1.0.1, observed: '2026-09-19'}
  - {surface: pricing.md "Last updated", value: '2026-08-26', observed: '2026-09-19'}
  - {surface: privacy policy "Effective date", value: '2026-04-29', observed: '2026-09-19'}