# Upgrading to 0.5

**URL:** <https://mworks.discourse.group/t/upgrading-to-0-5/54>\
**Category:** Installation\
**Created:** [March 8, 2013, 7:31pm UTC](https://mworks.discourse.group/t/upgrading-to-0-5/54 "2013-03-08T19:31:00Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![cstawarz](https://yyz1.discourse-cdn.com/flex031/user_avatar/mworks.discourse.group/cstawarz/32/3_2.png) [@cstawarz](https://mworks.discourse.group/u/cstawarz)\
**Post date:** [March 8, 2013, 7:31pm UTC](https://mworks.discourse.group/t/upgrading-to-0-5/54/1 "2013-03-08T19:31:00Z")

</div>

In MWorks 0.5, the experiment parser has become more rigorous about validating component parameters. In particular, if a component definition includes unrecognized parameters, the experiment will now fail to load.

This is good, because it means MWorks will now issue an error if you misspell a parameter name, rather than silently ignoring the parameter as it did previously. However, it also means that experiments that include old, currently-unsupported parameters will need to be updated. Here are the most common problem parameters that will need to be removed:

- Multiple stimulus types:

- Drifting grating stimulus:

- Movie stimulus:

- Multiple I/O channel types:

- ITC-18 I/O channels (except for triggered analog snippet):

---

<div class="post-metadata">

**Author:** ![cstawarz](https://yyz1.discourse-cdn.com/flex031/user_avatar/mworks.discourse.group/cstawarz/32/3_2.png) [@cstawarz](https://mworks.discourse.group/u/cstawarz)\
**Post date:** [July 20, 2022, 4:03pm UTC](https://mworks.discourse.group/t/upgrading-to-0-5/54/2 "2022-07-20T16:03:42Z")

</div>