# If you serialize models, you need to update to NuPIC 1.0.4

**URL:** <https://discourse.numenta.org/t/if-you-serialize-models-you-need-to-update-to-nupic-1-0-4/3770>\
**Category:** NuPIC\
**Tags:** warning\
**Created:** [April 12, 2018, 4:01pm UTC](https://discourse.numenta.org/t/if-you-serialize-models-you-need-to-update-to-nupic-1-0-4/3770 "2018-04-12T16:01:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rhyolight](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/rhyolight/32/3922_2.png) [@rhyolight](https://discourse.numenta.org/u/rhyolight)\
**Post date:** [April 12, 2018, 4:01pm UTC](https://discourse.numenta.org/t/if-you-serialize-models-you-need-to-update-to-nupic-1-0-4/3770/1 "2018-04-12T16:01:53Z")

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We’ve been getting reports of serialization bugs in NuPIC models, so @lscheinkman wrote a huge serialization test, which uncovered a _plethora_ of problems in capnp serialization.

If you are using serialization, update to NuPIC 1.0.4.

If you are using NuPIC 0.5.6 or earlier, you are _probably_ fine. 🤔