> For the complete documentation index, see [llms.txt](https://help.bioinsight.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.bioinsight.illumina.com/clarity-lims/clarity-lims-v6.3-and-lablink-v2.5/readme/release-notes-clarity-lims-v6.3.5.md).

# Release Notes Clarity LIMS v6.3.5

Published: June 2026

Last Update: November 2026

Latest Release: v6.3.5

This Release Notes describe the key changes made to software components for Clarity LIMS v6.3.5. The Clarity LIMS v6.3.5 patch release supersedes v6.3.4 and is intended for customers on or migrating to Clarity LIMS v6.3.5.

{% hint style="info" %}
Note: All customers on older versions of Clarity LIMS v6.2 and v6.3 are strongly recommended to upgrade their instance(s) to Clarity LIMS v6.3.5.
{% endhint %}

## LabLink Patch (November 2026)

LabLink v2.5.5.19 is available for Clarity LIMS v6.3.5 and replaces LabLink v2.5.5.13. This patch does not change the Clarity LIMS version.

### Bug Fixes

* Fixed an issue in LabLink where Project and User custom field configured as a text dropdown, with custom entries disabled, does not open on the Create Project and Create User page. Users cannot select an option other than the default value.

***

## Clarity LIMS v6.3.5 (June 2026)

### New Features

There are no new features added with this release.

### Updates

* PostgreSQL has been updated from v15.15 to v15.18.
* Angular library in LabLink has been updated from v8.3 to v21.2.

### Bug and Security Vulnerability Fixes

* Fixed an issue where remote HTTP and HTTPS download of files and folders did not work on Clarity LIMS v6.3.2 and onwards.
* Fixed an issue in LabLink where dropdown list custom fields became partially inaccessible when a large number of presets were configured, causing the list to overflow the screen and obscure selectable options.
* Fixed issue in LabLink where failed project creation caused by invalid sample submission template left a temporary project searchable via Advanced Search.
* Fixed security vulnerabilities.

### Known Issues

Refer to [Known Issues for Clarity LIMS v6.3](/clarity-lims/clarity-lims-v6.3-and-lablink-v2.5/readme/known-issues-v6.3.x.md) for the list of known issues for Clarity LIMS v6.3.

### Additional Notes

Refer to [Additional Notes for Clarity LIMS v6.3](/clarity-lims/clarity-lims-v6.3-and-lablink-v2.5/readme/additional-notes-v6.3.x.md) for the list of additional notes for Clarity LIMS v6.3.

The following are additional notes applicable to Clarity LIMS v6.3.5:

* PostgreSQL 15.18 is now qualified to run in Clarity LIMS v6.3.5.
* PostgreSQL 15.19 has been assessed to be at low risk of security vulnerabilities and has been shown to have no functional impact on Clarity LIMS v6.3.5.


---

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