generated: '2026-07-20' method: searched source: >- http://xcbl.org/xcbl40/xcbl40.shtml, http://xcbl.org/earlierversions.shtml, http://xcbl.org/faq.shtml, https://en.wikipedia.org/wiki/Commerce_One status: archival company_status: defunct summary: >- Commerce One, Inc. filed for bankruptcy in October 2004 and no longer exists as an operating company. Its patent portfolio was bought by Novell subsidiary JGR Acquisitions in December 2004; remaining assets went to ComVest Partners, and the Commerce One name was acquired by Perfect Commerce in February 2006. The only Commerce One technical surface still reachable on the public internet is xcbl.org, a static archival site that still serves the xCBL schema library and its documentation over plain HTTP. current_version: '4.0' current_version_released: '2003-03' last_updated: '2003-03' versioning: scheme: major.minor library release; per-namespace independent versioning from 4.0 policy_published: false notes: >- From 4.0, each functional-area namespace can be versioned independently because functional namespaces reference only the shared core namespace and never each other. Prior to 4.0 a single change forced a full library release. versions: - version: '4.0' released: '2003-03' form: W3C XML Schema (XSDL) status: current url: http://xcbl.org/xcbl40/xcbl40.shtml - version: '3.5' form: SOX, W3C XML Schema, XDR (incl. BizTalk) status: superseded url: http://xcbl.org/xcbl35/xcbl35.shtml - version: '3.0' form: SOX, W3C XSDL, XDR (incl. BizTalk), XML DTD status: superseded url: http://xcbl.org/xcbl30/xcbl30.shtml - version: '2.0' form: SOX, XDR, XML DTD status: superseded url: http://xcbl.org/xcbl20/xcbl20.shtml deprecation: policy_published: false sunset_header: false notes: >- No RFC 8594 Sunset/Deprecation policy and no formal deprecation process are published. Superseded versions remain downloadable from the earlier-versions page rather than being withdrawn. No Deprecation pointer is emitted. status_page: published: false notes: No status page exists; there is no operated service to report on. sla: published: false support: email: xcblwebmaster@commerceone.com notes: >- Contact addresses (xcblwebmaster@ / xcblsupport@commerceone.com) remain published on xcbl.org but commerceone.com has no DNS A record, so these mailboxes are not expected to be deliverable.