v0.21.1

## 🎊 Univer@v0.21.1

### 🚧 Important Note

Univer Sheets features are becoming more stable, and we are planning for the release of version 1.0.
If you have any suggestions, please submit them in our [issues](https://github.com/dream-num/univer/issues) to help us shape the future of Univer.

### 🚀 Getting Started

If you're eager to explore Univer, check out our [getting started documentation](https://docs.univer.ai/guides/sheets/getting-started/installation).
Dive into the world of collaborative document, spreadsheet, and presentation editing powered by Univer!

### 📊 Univer Sheets

#### 💔 Breaking Changes

- Refactor the API related to defined names: `univerAPI.newDefinedName` has been replaced with `FWorkbook.newDefinedNameBuilder`. #6826

#### 🐛 Bug Fixes and Optimizations

- Fix the issue of `PermissionService` not registered when removing protected ranges. #6821
- Fix the issue of not validating the legality of names when adding defined names through API. #6826
- Optimize the DOM performance and related algorithm performance of list rendering in scenarios with a large number of defined names. #6829
- Fix the issue of `ClearSelectionContentCommand` execution error introduced in version 0.21.0. #6829
- Fix the issue of floating images in the current workbook disappearing when creating a hidden workbook. #6833
- Add `.js` extension to the deep import of `opentype.js` for compatibility with Node.js ESM. #6835
- Fix the issue of `document is not defined` error when calling `FRange.setValue` in a Node.js environment. #6834
- Optimize the number extension rules in the auto-fill feature. #6837
- Fix the issue of collaborator cursors being invisible in collaborative editing introduced in version 0.16.0.
- Fix the issue of the API for subscribing to changes in online personnel in the collaborative room not being triggered correctly when personnel leave.

Special thanks to community contributor @getmateri for contributions in this version:

- Optimize the formula bar name box to create a defined name for the workbook range based on the current selection when pressing Enter. #6705
- Fix the issue of not being able to continue moving the selection with arrow keys after pressing Enter in the formula bar name box to jump to the corresponding selection. #6705

### 🌐 Univer Server

- Fix the issue of hidden drawing elements being incorrectly displayed when importing Excel files.

### 📢 Join the Conversation

We welcome your input and insights as we embark on this exciting journey. Connect with us on:

- :octocat: [GitHub Discussions](https://github.com/dream-num/univer/discussions)
- 👾 [Discord](https://discord.gg/z3NKNT6D2f)

### 📝 Changelog

[Full changelog](https://github.com/dream-num/univer/compare/v0.21.0...v0.21.1) (2026-04-25)

### Bug Fixes

* **autofill:** fix extend number rule of auto fill ([#6837](https://github.com/dream-num/univer/issues/6837)) ([8fe1122](https://github.com/dream-num/univer/commit/8fe112264edc8cb360ae50f507dc5ab3e9234eb6))
* **conditionformat:** fix condition format rule stopif true err ([#6823](https://github.com/dream-num/univer/issues/6823)) ([79ac910](https://github.com/dream-num/univer/commit/79ac910552223263b4f2ad5280eb009490670f75))
* **definedName:** optimize performance issues related to defined name ([#6829](https://github.com/dream-num/univer/issues/6829)) ([8c15220](https://github.com/dream-num/univer/commit/8c15220ee9f395224b71d1eca0cac8f73efc98b3))
* **drawing:** fix drawing visible in import ([#6822](https://github.com/dream-num/univer/issues/6822)) ([e84d694](https://github.com/dream-num/univer/commit/e84d6949855c4f5d14caf3e6f4cc9449c47c5f8c))
* **engine-render:** add .js extension to opentype.js deep import for Node.js ESM compatibility ([#6835](https://github.com/dream-num/univer/issues/6835)) ([8c226ed](https://github.com/dream-num/univer/commit/8c226edff2821c33560681d4d18fc3216f44e5b2))
* fix handleWorksheetRangePermissionIsEmpty error ([#6821](https://github.com/dream-num/univer/issues/6821)) ([da009a8](https://github.com/dream-num/univer/commit/da009a83b78dfc61ae2ad34f0e6d2dc0a97b7257))
* fix the `document is not defined` error that occurred when using `FRange.setValue` in a Node.js environment ([#6834](https://github.com/dream-num/univer/issues/6834)) ([0b1ac31](https://github.com/dream-num/univer/commit/0b1ac31cdef372ac5ae7867c389218dd1e1a9914))
* fix the issue of drawings will remove when creating a unit with makeCurrent is false ([#6833](https://github.com/dream-num/univer/issues/6833)) ([efb3980](https://github.com/dream-num/univer/commit/efb39805b1c638b2973cac1623bfdab775362a86))
* **scroll:** gap config ([#6828](https://github.com/dream-num/univer/issues/6828)) ([48fb4c2](https://github.com/dream-num/univer/commit/48fb4c254dc3731b558d84b3f3dfac457c5df17b))
* **scroll:** initial for gap zero ([#6832](https://github.com/dream-num/univer/issues/6832)) ([6e8f767](https://github.com/dream-num/univer/commit/6e8f7675f5cb602bc0b0c20d287e695ab635965a))
* **sheets-ui:** fix incorrect JSDoc for attachRangePopup ([#6824](https://github.com/dream-num/univer/issues/6824)) ([dba94e9](https://github.com/dream-num/univer/commit/dba94e905374dde44f211271e279d16a5c473ee9))
* **sheets-ui:** restore name box range naming flow ([#6705](https://github.com/dream-num/univer/issues/6705)) ([38eec33](https://github.com/dream-num/univer/commit/38eec3395fe35d396060903363668e313435a98b))