with S3000L Issue 1.0, titled S1003X For S1000D content in English, the language should adhere to Simplified Technical English standard ASD-STE100. Availability S1000D can be downloaded for free its project website. History Prior to Issue 2, updates to the specification were known as changes. When the standard reached Change 9, the proposed Change 10 became Issue 2.0 with previous Changes retro-referred to as Issue 1.x. Issue 1.6 was the first publicly published version of S1000D and was notable as the first issue to include operator information (Crew) as well as maintainer content. S1000D does not provide, nor endorse any software tools to produce or distribute content in accordance with the standard. See also ATA 100 IETM Common Source Data Base References XML-based standards