Question: When did iPhone 6s plus by the manufacturers of the MacBook Pro come out?

full_context: Document 1: IPhone 6: The iPhone 6 and iPhone 6 Plus are smartphones designed and marketed by Apple Inc. It is the eighth generation of the iPhone, succeeding the iPhone 5S that were announced on September 9, 2014, and released on September 19, 2014. The iPhone 6 and iPhone 6 Plus jointly were themselves replaced as the flagship devices of the iPhone series by the iPhone 6S and iPhone 6S Plus on September 9, 2015. The iPhone 6 and 6 Plus include larger 4.7 and 5.5 inches (120 and 140 mm) displays, a faster processor, upgraded cameras, improved LTE and Wi - Fi connectivity and support for a near field communications - based mobile payments offering.
Document 2: Andrea Lewis (Microsoft): Andrea Lewis was Microsoft's first technical writer, joining in 1977, and among the group of eleven early employees who posed for an iconic staff portrait taken in Albuquerque in 1978. She had previously edited the monthly newsletter, "Computer Notes", for Microsoft's first customer Micro Instrumentation and Telemetry Systems (MITS). She left the company in 1983. She is now a freelance writer and she helped build a literary center, Richard Hugo House, named after poet Richard Hugo.
Document 3: IPhone 6S: iPhone 6S and iPhone 6S Plus (stylized and marketed as iPhone 6s and iPhone 6s Plus) are smartphones designed, developed and marketed by Apple Inc. They were announced on September 9, 2015, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, with pre-orders beginning September 12 and official release on September 25, 2015. The iPhone 6S and 6S Plus were succeeded by the iPhone 7 and iPhone 7 Plus in September 2016.
Document 4: IPhone 7: iPhone 7 and iPhone 7 Plus are smartphones designed, developed, and marketed by Apple Inc. They were announced on September 7, 2016, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, and were released on September 16, 2016, succeeding the iPhone 6S and iPhone 6S Plus as the flagship devices in the iPhone series. Apple also released the iPhone 7 and 7 Plus in numerous countries worldwide throughout September and October 2016. They were succeeded as flagship devices by the iPhone 8 and iPhone 8 Plus on September 22, 2017, and the iPhone X on November 3, 2017.
Document 5: IPhone 7: iPhone 7 and iPhone 7 Plus are smartphones designed, developed, and marketed by Apple Inc. They were announced on September 7, 2016, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, and were released on September 16, 2016, succeeding the iPhone 6S and iPhone 6S Plus as the flagship devices in the iPhone series. Apple also released the iPhone 7 and 7 Plus in numerous countries worldwide throughout September and October 2016. They will be succeeded as flagship devices by the iPhone 8 and iPhone 8 Plus on September 22, 2017 and the iPhone X on November 3, 2017.
Document 6: IPhone 6: The iPhone 6 and iPhone 6 Plus are smartphones designed and marketed by Apple Inc. The devices are part of the iPhone series and were announced on September 9, 2014, and released on September 19, 2014. The iPhone 6 and iPhone 6 Plus jointly serve as successors to the iPhone 5S and were themselves replaced as flagship devices of the iPhone series by the iPhone 6S and iPhone 6S Plus on September 9, 2015. The iPhone 6 and 6 Plus include larger 4.7 and 5.5 inches (120 and 140 mm) displays, a faster processor, upgraded cameras, improved LTE and Wi - Fi connectivity and support for a near field communications - based mobile payments offering.
Document 7: Siri: In June 2016, The Verge's Sean O'Kane wrote about the then - upcoming major iOS 10 updates, with a headline stating ``Siri's big upgrades wo n't matter if it ca n't understand its users ''. O'Kane wrote that`` What Apple did n't talk about was solving Siri's biggest, most basic flaws: it's still not very good at voice recognition, and when it gets it right, the results are often clunky. And these problems look even worse when you consider that Apple now has full - fledged competitors in this space: Amazon's Alexa, Microsoft's Cortana, and Google's Assistant.'' Also writing for The Verge, Walt Mossberg had previously questioned Apple's efforts in cloud - based services, writing:
Document 8: IPhone 7: iPhone 7 and iPhone 7 Plus are smartphones designed, developed, and marketed by Apple Inc. They were announced on September 7, 2016, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, and were released on September 16, 2016, succeeding the iPhone 6S and iPhone 6S Plus as the flagship devices in the iPhone series. Apple also released the iPhone 7 and 7 Plus in numerous countries worldwide throughout September and October 2016. They were succeeded as flagship devices by the iPhone 8 and iPhone 8 Plus on September 22, 2017 and the upcoming iPhone X on November 3, 2017.
Document 9: Windows 8: The term "Immersive app" had been used internally by Microsoft developers to refer to the apps prior to the first official presentation of Windows 8, after which they were referred to as "Metro-style apps" in reference to the Metro design language. The term was phased out in August 2012; a Microsoft spokesperson denied rumors that the change was related to a potential trademark issue, and stated that "Metro" was only a codename that would be replaced prior to Windows 8's release. Following these reports, the terms "Modern UI-style apps", "Windows 8-style apps" and "Windows Store apps" began to be used by various Microsoft documents and material to refer to the new apps. In an interview on September 12, 2012, Soma Somasegar (vice president of Microsoft's development software division) confirmed that "Windows Store apps" would be the official term for the apps. An MSDN page explaining the Metro design language uses the term "Modern design" to refer to the language as a whole.
Document 10: Aleks Oniszczak: Prior to working at Microsoft's Apple Products division in May 2010, Oniszczak worked as a user experience researcher for Microsoft Surface and Southwestern Bell's Technology Resources, Inc. (now AT&T). Past and present projects include Office for Mac, Surface, Surface 2 and Windows 7 Touch Pack.
Document 11: Windows 8: Microsoft began an advertising campaign centered around Windows 8 and its Surface tablet in October 2012, starting with its first television advertisement premiering on October 14, 2012. Microsoft's advertising budget of US$1.5–1.8 billion was significantly larger than the US$200 million campaign used to promote Windows 95. As part of its campaign, Microsoft set up 34 pop-up stores inside malls (primarily focusing on Surface), provided training for retail employees in partnership with Intel, and collaborated with the electronics store chain Best Buy to design expanded spaces to showcase devices. In an effort to make retail displays of Windows 8 devices more "personal", Microsoft also developed a character known in English-speaking markets as "Allison Brown", whose fictional profile (including personal photos, contacts, and emails) is also featured on demonstration units of Windows 8 devices.
Document 12: IPhone 6S: The iPhone 6S and iPhone 6S Plus (stylized and marketed as iPhone 6s and iPhone 6s Plus) are smartphones designed, developed and marketed by Apple Inc. They were announced on September 9, 2015, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, with pre-orders beginning September 12 and official release on September 25, 2015. The iPhone 6S and 6S Plus were succeeded by the iPhone 7 and iPhone 7 Plus in September 2016.
Document 13: IPhone 6: The iPhone 6 and iPhone 6 Plus are smartphones designed and marketed by Apple Inc. The devices are part of the iPhone series and were announced on September 9, 2014, and released on September 19, 2014. The iPhone 6 and iPhone 6 Plus jointly serve as successors to the iPhone 5S and were themselves replaced as flagship devices of the iPhone series by the iPhone 6S and iPhone 6S Plus on September 9, 2015.
Document 14: Microsoft Office 2013: Development on this version of Microsoft Office was started in 2010 and ended on October 11, 2012, when Microsoft Office 2013 was released to manufacturing. Microsoft released Office 2013 to general availability on January 29, 2013. This version includes new features such as integration support for online services (including OneDrive, Outlook.com, Skype, Yammer and Flickr), improved format support for Office Open XML (OOXML), OpenDocument (ODF) and Portable Document Format (PDF) and support for multi-touch interfaces.
Document 15: Microsoft Software Assurance: Access to exclusive software products: Windows Fundamentals for Legacy PCs, Windows Vista Enterprise Edition, Windows 7 Enterprise Edition, Windows 8 Enterprise Edition and Microsoft Desktop Optimization Pack are only available to Software Assurance customers
ground_truth: September 25, 2015
sub_queries: MacBook Pro >> manufacturer Answer: Apple
when did the Apple iphone 6s plus come out Answer: September 25, 2015