HEXT Standard 1.0

Release Notes — HEXT Standard 1.0.0

Release Date: July 7, 2026
Tag: v1.0.0
Status: Stable — Initial Public Standard Release

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Summary

Today we officially publish HEXT Standard 1.0 — the first public release of the HEXT Semantic Object Graph Standard.

This release transitions the HEXT-AI ecosystem from an RFC-driven design project to a standards-driven implementation target.

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What's Included

Artifact	Location
Normative Specification	SPECIFICATION.md
Core XSD Schema	schemas/hext-core.xsd
Extension Schemas	schemas/hext-rfc.xsd, schemas/hext-experiment.xsd
Canonical Examples	examples/*.hext.xml
Design History	history/

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Key Features

• Semantic Object Graph as the canonical knowledge model
• Semantic XML as the canonical serialization
• Four conformance levels: Core, MCP, Registry, Validator
• Cryptographic ledger and provenance architecture
• Evidence and attestation framework
• XSD schema enforcement
• MCP-native interoperability for AI agents
• AI Discovery Manifesto (llms.txt) specification

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Governance

• Governing Body: HEXT-AI Organization
• Reference Implementation: Gemmina Intelligence LLC
• Specification License: CC BY 4.0
• Schemas & Examples License: CC0 1.0

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Migration from RFC Era

Before	After
RFC-NVS20 as design document	HEXT Standard 1.0 as normative spec
v2.2.0 Draft status	1.0.0 Stable status
RFC repository role	Canonical specification repository

See MIGRATION.md for full migration guidance.

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Compatibility

• Legacy v0.1.0 .hxt documents: Supported (grandfather rules)
• v2.2.0 draft implementations: Review against 1.0.0 conformance levels
• XSD namespace: Unchanged (urn:gmm:hext:core:1)

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Citation

HEXT-AI Organization. HEXT Standard 1.0: The Semantic Object Graph Standard.
Version 1.0.0, July 7, 2026.
https://github.com/HEXT-AI/hxt-spec/blob/main/SPECIFICATION.md

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Links

• Website: hextai.com
• Organization: github.com/HEXT-AI
• Full Changelog: CHANGELOG.md

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HEXT Standard 1.0 · Initial Public Standard Release