Visual Studio 2017

Released: April 2017
TypeScript 2.1
blogs.msdn.microsoft.com/typescript/2016/12/07/announcing-typescript-2-1/
The Office Developer Tools is installed by default.

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Xml\Schemas\1033\
offappmanifest.xsd
offappmanifest-1.1.xsd
OfficeAppBasicTypesV1_0.xsd
TaskpaneAppVersionOverridesV1_0.xsd
MailAppVersionOverridesV1_0.xsd

Update 9 (Released: May 2019)
Version 15.9
Includes TypeScript 3.1

Update 8 (Released: September 2018)
version 15.8
includes Typescript 3.0 by default

Update 7 (Released: May 2018)
version 15.7
includes Typescript 2.8 as the default
support for jsconfig.json
TypeScript debugging with Edge

Update 6 (Released: March 2018)
version 15.6

Update 5 (Released: December 2017)
version 15.5

Update 4 (Released: October 2017)
version 15.4

Update 3 (Released: August 2017)
version 15.3

Update 2 (Released: May 2017)
version 15.2
Typescript 2.2 is the default

Update 1 (Released: April 2017)
version 15.1
Typescript 2.1 is the default