For the current relationship of this specification to others, see this specification group: SOAP.
| 2007-04-27 | SOAP Version 1.2 Part 1: Messaging Framework (Second Edition) Recommendation |
| 2006-12-19 | Proposed Edited Recommendation |
| 2003-06-24 | SOAP Version 1.2 Part 1: Messaging Framework Recommendation |
| 2003-05-07 | Proposed Recommendation |
| 2002-12-19 | Candidate Recommendation |
| 2002-06-26 | Last Call Working Draft |
| 2001-12-17 | Working Draft |
| 2001-10-02 | Working Draft |
| 2001-07-09 | First Public Draft |