# What changed in resend

> 12 changes in resend 6 from its official release notes, upgrade guides and advisories: 2 breaking, 3 new APIs and options. Each one cited. Sources checked 2026-10-21. HTML: https://unstale.sh/npm/resend/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## resend 6

### Breaking changes

- Inbox fields were renamed. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- Requests with dot segments in their paths are rejected. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)

### New APIs and options

- Inbox operations now accept email addresses. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- Inbox label endpoints were added. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- Inboxes endpoints were added to the SDK. (6.33.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.33.0)

### Fixes and other changes

- Search and update draft types now match the API. (6.34.1) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.1)
- Rendering React emails no longer mutates the batch payload. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- Inbox label colors now accept plain strings. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- The created_at field is typed on list and get inbox responses. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- Publish chains preserve error response headers. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- The inbox agent tone is typed as one of the presets. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)
- The updated_at field is typed on list and get inbox responses. (6.34.0) — [release notes](https://github.com/resend/resend-node/releases/tag/v6.34.0)