For release notes, check out the release announcement

For new features, check out the What's new in TypeScript 2.9.

For breaking changes, check out the Breaking changes in TypeScript 2.9 page.

For the complete list of fixed issues, check out the issues fixed in TypeScript 2.9 RC and after TypeScript 2.9 RC.

Download:

• npm
• Visual Studio 2015 plugin
• Visual Studio 2017 (Select new version in project options)
• NuGet package

Special thanks to all contributors to this release:

• Aditya Daflapurkar
• Adrien Gibrat
• Alan Agius
• Alex Khomchenko
• Alex Ryan
• Alexander Tarasyuk
• Anders Hejlsberg
• Andrew Casey
• Andrew Faulkner
• Andy Hanson
• Armando Aguirre
• Artem Tyurin
• Arthur Ozga
• Benjamin Lichtman
• @bluelovers
• Bowden Kenny
• Brandon Slade
• Daniel Rosenwasser
• Derek P Sifford
• Dhruv Rajvanshi
• Ecole Keine
• @falsandtru
• Holger Jeromin
• Jack Williams
• Jordi Oliveras Rovira
• Joscha Feth
• Josh Goldberg
• Kevin Donnelly
• Khải
• Klaus Meinhardt
• Maarten Sijm
• Matt Bierner
• Mine Starks
• Mohamed Hegazy
• Nathan Shively-Sanders
• Paul Koerbitz
• @rhysd
• Ron Buckton
• Ryan Cavanaugh
• Sheetal Nandi
• @TravCav
• Vakhurin Sergey
• Wenlu Wang
• Wesley Wigham
• @Zzzen