Correct. Microsoft said so all along. For over a year the planned release date was 2015 Q4. However, with the PC market tanking, the major IHVs (hardware makers, as MSFT calls them) begged Nadella to shoot for the 2015 Back to School season in the USA to help boost sales. In response to their pleas Microsoft rejigged things so that a workable and stable early release could go to market at the end of July. The single Win10 planned for Oct/Nov 2015 was split into Threshold I for July, and the complete and original planned release was called Threshold II. We'll get that as an update next month.
In reality, the originally intended Win10 is only shipping next month.