In July 1998, the sponsors moved the standards activities from the Davenport Group to OASIS, forming the OASIS DocBook Technical Committee with Eduardo Gutentag of Sun Microsystems as chair. The OASIS Era The OASIS DocBook Technical Committee is continuing the work started by the Da- venport Group. The transition from Davenport to OASIS was very smooth, in part because the core team remained essentially the same. DocBook V3.1, published in February 1999, was the first OASIS release. It integrated a number of changes that had been "in the wings" for some time. In March 2000, Norm Walsh became chair of the Technical Committee. In February 2001, OASIS made DocBook SGML V4.1 and DocBook XML V4.1.2 official OASIS Specifications. In October 2005, the DocBook Technical Committee released the first beta test version of DocBook V5.0. Development of the DocBook 4.x series continued in parallel with the development of V5.0. In October 2006, the DocBook Technical Committee released DocBook V4.5, the last release planned in the 4.x series. In 2008, the Publisher's Subcommittee was chartered to develop and maintain official variants of DocBook in support of the publishing industry. The subcommittee focuses on schema customizations to support: periodicals as regularly published technical notes or journals, book publishing (such as business, legal, medical, and other non- technical domains), educational textbooks, and other document types as appropriate for this industry. DocBook V5.0 became an official Committee Specification in June 2009 and became an official OASIS Standard in October 2009. The Technical Committee continues DocBook development to ensure that the schema will continue to meet the needs of its users. DocBook V5.0 DocBook V5.0 represents a major step forward for DocBook. The differences between DocBook 4.x and V5.0 are quite radical in some aspects, but the basic idea behind DocBook is still the same, and almost all element names are unchanged. Because of this it is very easy to become familiar with DocBook V5.0 if you know any previous version of DocBook. DocBook V5.0 | 5