# v4.20
## Release highlights
### 1. Tagging data structures
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.
## Features and fixes delivered with this release
### Features
* TD-3519 As a Data Catalog I want to tag my structures introducing a tag and tag description
### Fixes
* 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
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