[](https://www.npmjs.com/package/ajv/v/7.0.0-beta.0)

[Ajv version 7.0.0-beta.0](https://github.com/ajv-validator/ajv/releases/tag/v7.0.0-beta.0) is released with these changes:

- to reduce the mistakes in JSON schemas and unexpected validation results, [strict mode](./docs/strict-mode.md) is added - it prohibits ignored or ambiguous JSON Schema elements.

- to make code injection from untrusted schemas impossible, [code generation](./docs/codegen.md) is fully re-written to be safe.

- to simplify Ajv extensions, the new keyword API that is used by pre-defined keywords is available to user-defined keywords - it is much easier to define any keywords now, especially with subschemas.

- schemas are compiled to ES6 code (ES5 code generation is supported with an option).

- to improve reliability and maintainability the code is migrated to TypeScript.

**Please note**:

- the support for JSON-Schema draft-04 is removed - if you have schemas using "id" attributes you have to replace them with "\$id" (or continue using version 6 that will be supported until 02/28/2021).

- all formats are separated to ajv-formats package - they have to be explicitely added if you use them.

See [release notes](https://github.com/ajv-validator/ajv/releases/tag/v7.0.0-beta.0) for the details.

To install the new version:

npm install ajv@beta

See [Getting started with v7](https://github.com/ajv-validator/ajv/tree/v7-beta#usage) for code example.

__Please note__: [Changes in version 7.0.0-beta](https://github.com/ajv-validator/ajv/releases/tag/v7.0.0-beta.0)

[Version 6.0.0](https://github.com/ajv-validator/ajv/releases/tag/v6.0.0).