# Nightly 8.1 Changelogs - 2022 **URL:** \ **Category:** Ignition Early Access\ **Created:** [January 4, 2022, 3:42pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2022/54636 "2022-01-04T15:42:45Z")\ **Posts on this page:** 1\ **Showing post:** 42
**Author:** ![sreis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/sreis/32/14631_2.png) [@sreis](https://forum.inductiveautomation.com/u/sreis)\ **Post date:** [March 16, 2022, 7:57pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2022/54636/42 "2022-03-16T19:57:15Z")
Weekly Changelog: 8.1.16-b20220315 ## Visualization **5699: Exception when deserializing a dataset client tag, which crashes the Vision module on Designer startup** Corrected a regression from 8.1.15 that could cause a null pointer exception and Designer crash during serialization/deserialization of Vision Client tags containing a PyDataSet value (instead of a standard DataSet datatype). **1081: Audio Component: Provide to play sound clips in browser** Added audio component in Perspective. [See forum post](https://forum.inductiveautomation.com/t/new-feature-audio-component/57285) ## Platform **4466: Lookup expression throws an error when the dataset parameter is from a tag and a header is used for the lookup column or results column parameters** The Lookup expression function no longer throws an exception when a binding to a tag dataset is initializing with Uncertain quality. ## Data Model **3097: Unable to drag-n-drop tags into a Gateway Event Tag Change Script** You can now drag tags from Tag Browser to Gateway Event Tag Change Scripts and Client Event Scripts. ## Infrastructure **177: Mac OS launchers & workstation should use the new App Notarization process** The Mac OS Designer Launcher, Vision Client Launcher, and Perspective Workstation are now Notarized by apple to pass Gatekeeper checks. --- _[View the full topic](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2022/54636)._