# What changed in ember-resolver

> 20 changes in ember-resolver 3 to 13 from its official release notes, upgrade guides and advisories: 11 breaking. Each one cited. Sources checked 2026-11-01. HTML: https://unstale.sh/npm/ember-resolver/

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

## ember-resolver 13

### Breaking changes

- Deprecated behaviors are dropped. (13.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v13.0.0)
- ember-resolver is converted to a plain library, changing how developers use it. (13.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v13.0.0)

### Behavior and default changes

- Explicit modules become optional. (13.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v13.0.0)

### Fixes and other changes

- The global require is hidden from webpack. (13.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v13.0.0)

## ember-resolver 12

### Breaking changes

- Support for ember-source versions earlier than 4.12 was dropped. Addon authors testing those older scenarios need to continue using ember-resolver v11. (12.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v12.0.0)

## ember-resolver 11

### Breaking changes

- The container-debug-adapter initializer was removed. (11.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v11.0.0)
- Utilities from @ember/string are embedded, removing the peer dependency on @ember/string. (11.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v11.0.0)

### Behavior and default changes

- The peer dependency range was loosened to support ember-source >= v5.0. (11.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v11.0.0)

## ember-resolver 10

### Breaking changes

- Added as a peer dependency; it is required to avoid deprecations in ember-source 4.10. (10.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v10.0.0)

## ember-resolver 9

### Breaking changes

- Support for Ember 3.x was dropped. (9.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v9.0.0)
- Support for ember-cli versions below 2.0.0 was removed. (9.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v9.0.0)
- Support for Node 10, 11, 12, 13, 15, and 17 was dropped. (9.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v9.0.0)

### Tooling

- Ambient type definitions were introduced, providing TypeScript type definitions for the package. (9.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v9.0.0)

### Fixes and other changes

- The type definition now declares Resolver as extending EmberObject. (9.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v9.0.0)

## ember-resolver 8

### Breaking changes

- Modifiers are no longer automatically dasherized, so developers must account for this when naming or resolving modifiers. (8.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v8.0.0)
- Support for Node 8 was dropped, so developers must use a newer Node.js version. (8.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v8.0.0)

### Fixes and other changes

- Fixed resolving namespaces in the `@scope/name` format. (8.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v8.0.0)

## ember-resolver 7

### Fixes and other changes

- Fixes a warning from babel-plugin-debug-macros. (7.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/releases/tag/v7.0.0)

## ember-resolver 3

### Fixes and other changes

- Re-registering after App.reset no longer fails. (3.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/blob/HEAD/CHANGELOG.md)
- The @ember npm scope works with the resolver. (3.0.0) — [release notes](https://github.com/ember-cli/ember-resolver/blob/HEAD/CHANGELOG.md)