# What changed in json2jsii

> 3 changes in json2jsii 0.5 from its official release notes, upgrade guides and advisories: 1 breaking, 1 new APIs and options. Each one cited. Sources checked 2026-10-25. HTML: https://unstale.sh/npm/json2jsii/

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

## json2jsii 0.5

### Breaking changes

- Prohibited member names are renamed to avoid JSII conflicts. (0.5.17) — [release notes](https://github.com/cdklabs/json2jsii/releases/tag/v0.5.17)

### New APIs and options

- Optional regex pattern validation is available for struct properties and enum values. (0.5.19) — [release notes](https://github.com/cdklabs/json2jsii/releases/tag/v0.5.19)

### Fixes and other changes

- const-to-enum now handles boolean schemas in properties. (0.5.18) — [release notes](https://github.com/cdklabs/json2jsii/releases/tag/v0.5.18)