TypeScript 7 Beta Now Enabled by Default in Visual Studio 2026 18.6 Insiders 3<\/p>\n
In Visual Studio 2026 18.6 Insiders 3 we have updated the built-in TypeScript SDK to\u00a0TypeScript 7 Beta (native preview)<\/strong>. The TypeScript SDK provides the compiler and language service used for TypeScript and JavaScript support in Visual Studio. This update impacts any project that uses the built-in SDK, including TypeScript projects, ASP.NET Core projects with npm packages, and any TypeScript or JavaScript files you are editing. If your project doesn’t have a specific TypeScript version installed, Visual Studio will use the new native compiler by default. In this post we will go over what this change means for you, how to use a different version of TypeScript if needed, and the known issues we are currently working on. You can download the latest Insiders release with the link below.<\/p>\n TypeScript 7 is a\u00a0native port of the TypeScript compiler and tools<\/a>. This is a significant change that brings native execution speed and shared-memory parallelism to the TypeScript compiler and language service. We have seen compile time improvements of up to 10x for large code bases, along with substantially reduced memory usage. If you are working with large TypeScript or JavaScript projects, you should see a noticeable improvement across your entire development experience.<\/p>\n In addition to faster compile times, the TypeScript language service has significant performance improvements as well. We have seen that the time to load projects has decreased roughly 8x. The improvements are not limited to load times; you should see a general speed improvement across the board with any features which interact with the TypeScript language service. Some of the Visual Studio features that benefit from these improvements include.<\/p>\n If you are working with large code bases, you should see a noticeable improvement to your entire development experience. You will spend less time waiting for the IDE to respond and more time being productive working on your applications.<\/p>\n For more details on TypeScript 7 and the performance improvements, see the\u00a0Announcing TypeScript 7.0 Beta<\/a>\u00a0blog post.<\/p>\n Visual Studio ships with a built-in version of the TypeScript compiler and language service for cases where the project doesn’t specify a specific version to be used. Starting with this release, that built-in version is TypeScript 7 Beta. If you prefer to use a different version, you can install it in your project and\u00a0Visual Studio will always use the project-local version over the built-in one<\/strong>.<\/p>\n If you want to go back to using the previous TypeScript language service, you can disable the native preview in Visual Studio. Go to\u00a0Tools > Options > Preview Features<\/em>\u00a0and search for “native preview”. Uncheck the\u00a0Enable JavaScript\/TypeScript Native Language Service Preview<\/strong>\u00a0option and restart Visual Studio.<\/p>\n To use the current stable release, install the\u00a0typescript<\/a>\u00a0package in your project.<\/p>\n If you want to pin to a specific version of the native preview, install the\u00a0@typescript\/native-preview<\/a>\u00a0package.<\/p>\n In both cases, Visual Studio will detect the version in your\u00a0node_modules\u00a0and use that instead of the built-in SDK.<\/p>\n TypeScript 7 brings significant performance improvements to Visual Studio, and we are continuing to refine the experience. Below are the known issues that we are actively working on. This is not an exhaustive list.<\/p>\n We appreciate your feedback as we work toward full parity.<\/p>\n If you have feedback on the TypeScript compiler, or language service, the best place to file feedback is the\u00a0typescript-go GitHub repo<\/a>.<\/p>\n If you are running into an issue that is specific to Visual Studio, you can share feedback with us via\u00a0Developer Community<\/a>: report any bugs or issues via\u00a0report a problem<\/a>\u00a0and share your\u00a0suggestions for new features<\/a>\u00a0or improvements to existing ones.<\/p>\n We would love if you could try out the new experience and let us know how it’s working for you. Please try it out and share your feedback with us.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" TypeScript 7 Beta Now Enabled by Default in Visual Studio 2026 18.6 Insiders 3 In Visual Studio 2026 18.6 Insiders 3 we have updated the built-in TypeScript SDK to\u00a0TypeScript 7 Beta (native preview). The TypeScript SDK provides the compiler and language service used for TypeScript and JavaScript support in Visual Studio. This update impacts any […]<\/p>\n","protected":false},"author":357,"featured_media":256215,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[155],"tags":[],"class_list":["post-256214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-visual-studio"],"acf":[],"blog_post_summary":" TypeScript 7 Beta Now Enabled by Default in Visual Studio 2026 18.6 Insiders 3 In Visual Studio 2026 18.6 Insiders 3 we have updated the built-in TypeScript SDK to\u00a0TypeScript 7 Beta (native preview). The TypeScript SDK provides the compiler and language service used for TypeScript and JavaScript support in Visual Studio. This update impacts any […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/posts\/256214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/users\/357"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/comments?post=256214"}],"version-history":[{"count":1,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/posts\/256214\/revisions"}],"predecessor-version":[{"id":256218,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/posts\/256214\/revisions\/256218"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/media\/256215"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/media?parent=256214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/categories?post=256214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/visualstudio\/wp-json\/wp\/v2\/tags?post=256214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What is the TypeScript 7 native preview?<\/h2>\n
\n
Using a different TypeScript version<\/h2>\n
Disabling TypeScript 7 native preview<\/h3>\n
Using TypeScript 6.x (GA)<\/h3>\n
npm install -D typescript@^6.0.0<\/code><\/pre>\nUsing a specific TypeScript 7 native preview version<\/h3>\n
npm install -D @typescript\/native-preview@beta<\/code><\/pre>\nKnown issues<\/h2>\n
\n
Reporting feedback<\/h2>\n