- [#3216](https://github.com/withastro/astro/pull/3216) [`114bf63e`](https://github.com/withastro/astro/commit/114bf63e11f28299b13178ef1a412eed37ab7909) Thanks [@JuanM04](https://github.com/JuanM04)! - **[BREAKING]** Now with Build Output API (v3)! [See the README to get started](https://github.com/withastro/astro/tree/main/packages/integrations/vercel#readme).
-`trailingSlash` redirects works without a `vercel.json` file: just configure them inside your `astro.config.mjs`
- Multiple deploy targets: `edge`, `serverless` and `static`!
- When building to `serverless`, your code isn't transpiled to CJS anymore.
**Migrate from v0.1**
1. Change the import inside `astro.config.mjs`:
```diff
- import vercel from '@astrojs/vercel';
+ import vercel from '@astrojs/vercel/serverless';
```
2. Rename the `ENABLE_FILE_SYSTEM_API` environment variable to `ENABLE_VC_BUILD`, as Vercel changed it.
3. The output folder changed from `.output` to `.vercel/output` — you may need to update your `.gitignore`.
- [#3051](https://github.com/withastro/astro/pull/3051) [`b0ba22c5`](https://github.com/withastro/astro/commit/b0ba22c5ffab6575706ae904d0ad8cadc3f48d43) Thanks [@JuanM04](https://github.com/JuanM04)! - Fixed issues when converting from ESM to CJS
* [#3139](https://github.com/withastro/astro/pull/3139) [`4ac37973`](https://github.com/withastro/astro/commit/4ac3797344943df4124abd4043deda624440f035) Thanks [@JuanM04](https://github.com/JuanM04)! - Added warning when `ENABLE_FILE_SYSTEM_API` is not found
* [#3008](https://github.com/withastro/astro/pull/3008) [`8bd49c95`](https://github.com/withastro/astro/commit/8bd49c95365f7bbce41e19b7e8658ad639c22f31) Thanks [@JuanM04](https://github.com/JuanM04)! - Updated integrations' `astro:build:done` hook: now it matches the client dist when using SSR
- [#3008](https://github.com/withastro/astro/pull/3008) [`8bd49c95`](https://github.com/withastro/astro/commit/8bd49c95365f7bbce41e19b7e8658ad639c22f31) Thanks [@JuanM04](https://github.com/JuanM04)! - Updated integrations' `astro:build:done` hook: now it matches the client dist when using SSR
- [#2915](https://github.com/withastro/astro/pull/2915) [`e30aa4df`](https://github.com/withastro/astro/commit/e30aa4dfef2bbe874e2fe7f07232bf8a3c092317) Thanks [@JuanM04](https://github.com/JuanM04)! - Add a Vercel adapter for SSR