> For the complete documentation index, see [llms.txt](https://docs.truedat.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.truedat.io/v8.7/release-notes/v4/4.20.md).

# v4.20

## Release highlights <a href="#v4.20-releasehighlights" id="v4.20-releasehighlights"></a>

### 1. Tagging data structures <a href="#v4.20-1.taggingdatastructures" id="v4.20-1.taggingdatastructures"></a>

We add the option to tag structures by users with corresponding permissions. This may be used to cover different needs like tagging structures with some data incident or with a quality certification. Administrators will define which tags are available in your installation and users with the corresponding permissions will be able to add/modify/delete tags from the structures.

![](/files/-MaJIV7FTigdQDfWeQCY)

## Features and fixes delivered with this release <a href="#v4.20-featuresandfixesdeliveredwiththisrelease" id="v4.20-featuresandfixesdeliveredwiththisrelease"></a>

### Features <a href="#v4.20-features" id="v4.20-features"></a>

* TD-3519 As a Data Catalog I want to tag my structures introducing a tag and tag description

### Fixes  <a href="#v4.20-fixes" id="v4.20-fixes"></a>

* TD-3581 Corrections on default DQ operators in td-web-modules
* TD-3611 Quality Engine: Malformed SQL if raw implementation contains newlinesHotFix
* TD-3630 Error 500 in POST /api/executions/search
* TD-3645 Implementations download is failing
* TD-3670 Unexpected error when we update an structure