# MobX 6.13.2 - Product: MobX (https://whatsnew.fyi/product/mobx) - Vendor: MobX - Date: 2024-09-07 - Version: 6.13.2 - Original notes: https://github.com/mobxjs/mobx/releases/tag/mobx%406.13.2 - Permalink: https://whatsnew.fyi/product/mobx/releases/6.13.2 What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog. Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'. --- - **fixed** — new set methods not working with observable set ###### Patch Changes - [`f1f922152b45357a49ee6b310e9e0ecf38bd3955`](https://github.com/mobxjs/mobx/commit/f1f922152b45357a49ee6b310e9e0ecf38bd3955) [#3921](https://github.com/mobxjs/mobx/pull/3921) Thanks [@urugator](https://github.com/urugator)! - fix: #3919 new set methods not working with observable set