# PyBIS v1.35.1 released

**URL:** <https://community.openbis.ch/t/pybis-v1-35-1-released/133>\
**Category:** Announcements\
**Created:** [7 February 2023 16:36 UTC](https://community.openbis.ch/t/pybis-v1-35-1-released/133 "2023-02-07T16:36:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cbarillari](https://dub1.discourse-cdn.com/flex013/user_avatar/community.openbis.ch/cbarillari/32/10_2.png) [@cbarillari](https://community.openbis.ch/u/cbarillari)\
**Post date:** [7 February 2023 16:36 UTC](https://community.openbis.ch/t/pybis-v1-35-1-released/133/1 "2023-02-07T16:36:17Z")

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Dear PyBIS users,

A new pyBIS version is available, PyBIS v1.35.1.

We strongly recommend you to upgrade to this version, which contains a fix for the following bug:

_If you save a sample before fetching its parents and the sample has parents, the relationship link is deleted._

After this upgrade, no changes are required in your code.

pyBIS is available here [PyBIS · PyPI](https://pypi.org/project/PyBIS/) .

You can upgrade your existing pyBIS version by running:

_pip install --upgrade pybis_

Best regards,

the openBIS team