> For the complete documentation index, see [llms.txt](https://docs.id.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.id.gov.sg/important-updates/user-migrations.md).

# User Migrations

* 17 May 2023 - Major release of v2.0 TypeScript SDK. Breaking changes include PKCE and new API method signatures. Deprecation of v1 SDK will take place in **31st December 2023**, therefore **any existing users who has yet to upgrade their SDK version and implement the necessary code changes for PKCE by then will face disruptions in their applications.** Refer to [TypeScript SDK v2.0 Major Release](/important-updates/user-migrations/typescript-sdk-v2.0-major-release.md) for a step-by-step migration guide.