# Nightly 8.1 Changelogs - 2023 **URL:** \ **Category:** Ignition Early Access\ **Created:** [January 12, 2023, 12:21am UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2023/68524 "2023-01-12T00:21:22Z")\ **Posts on this page:** 1\ **Showing post:** 13
**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:** [January 31, 2023, 2:20pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2023/68524/13 "2023-01-31T14:20:07Z")
Weekly Changelog: 8.1.25-b20230127 ## Drivers **4912: IEC 61850 Driver** A new driver has been added to support IEC 61850 devices using MMS protocol. Features include: SCD file support, Reporting Control Block handling and new system functions. [See Forum post](https://forum.inductiveautomation.com/t/new-feature-iec-61850-mms-driver/69118). ## Swing **6690: Argument type mismatch error thrown when deserializing numeric text field** Fix a serialization issue with the bindings of Numeric Text Fields in Vision where a Type Mismatch Error is thrown for projects with the following conditions: 1. There are more than one Numeric Text Fields in a single Window or Template 2. At least 2 of the Numeric Text Fields have their Value fields bound to different Value types (Int, Double, Long, Float) 3. At the time of saving the project, the Numeric Text Fields bound to different Value types have values of 0 4. Numeric Text Fields with Float/Double is serialized before those with Int/Long ## Tags **7093: NPE causes 7.9 LegacyTagConverter to fail** Fix NPE during 7.9.\* tag conversion. **6402: Upgrade from 7.9 to 8.1 changes overrides in UDT Definitions** Fix upgrade from 7.9.13 not applying all UDT member overrides. --- _[View the full topic](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2023/68524)._