# 5.590 - History-Based Parametric Modeling is here

**URL:** <https://discourse.shapr3d.com/t/5-590-history-based-parametric-modeling-is-here/31108>\
**Category:** Release notes\
**Created:** [April 15, 2024, 8:19am UTC](https://discourse.shapr3d.com/t/5-590-history-based-parametric-modeling-is-here/31108 "2024-04-15T08:19:47Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![Istvan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/istvan/32/23668_2.png) [@Istvan](https://discourse.shapr3d.com/u/Istvan)\
**Post date:** [April 30, 2024, 9:24am UTC](https://discourse.shapr3d.com/t/5-590-history-based-parametric-modeling-is-here/31108/39 "2024-04-30T09:24:14Z")

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> [@Improvements to parametric modeling](https://discourse.shapr3d.com/t/improvements-to-parametric-modeling/31577/27):
>
> We’ve found an issue that might cause performance issues for some users. Based on our current understanding it should impact only a couple hundred users, but if you are working with larger assemblies (5k+ parts), this might help a bit if you are experiencing slowdowns. In some cases, Shapr3D automatically generates a hidden folder in the Items menu, called BACKUP\_\_AUTOGENERATED. This increases the number of parts in your workspace, so if you work with 5k parts, you might end up with an addition…

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