# 8.50 Maintenance Release 1 Enhancements or bugs resolved in this version are as follows. | Category | Fixed In | Description | Tech Ref | | --------------------- | ----------- | ----------------------------------------------------------------------------------------------------------------------------- | -------- | | Command Centre | Server | Add performance monitor counters for OPC UA diagnostics | 86516 | | Command Centre | Server | Exception during an outgoing DCOM client request message | 87820 | | Command Centre | Server | Multiple Controllers showing “Awaiting status from Controller” | 88307 | | Command Centre Client | Workstation | Touch screen not functional on a Command Centre Site Plan button objects | 87031 | | Controller | Controller | Controller may not report its package and OS version during Server request effecting the reliability of software upgrades | 88158 | | Controller | Server | Controllers report offline when it detects an IP conflict | 87856 | | Controller Service | Server | Unable to get a Controller online with Authentication failed, see inner exception message | 89241 | | DHCP | Controller | Renew DHCP settings override does not function | 87347 | | Digital ID | Server | Exception due to Digital ID card type is not supported by a stored procedure | 87541 | | Door | Server | Assigning exit reader at a door causes Invalid string or buffer length | 87989 | | EDI | Server | Cannot modify EDI operator setting using ClickOnce workstations | 88318 | | Elevator | Server | Access Zones associated with Elevator Car display as not fully configured | 86575 | | | | | 87645 | | Elevator | Server | Adding an Access Group to a Cardholder may not give access at a kiosk or Elevator | 87851 | | Elevator | Server | Exception causing KONE HLI performance issues | 87455 | | Listen Port | Controller | Sites using Listen Port greater than 32767, unable to get Controllers online after upgrading to v8.50 | 88870 | | Listen Port | Server | Enable “Send Server Address” when Controller in legacy encryption mode to support Listen Ports | 88311 | | PDF | Server | Performance optimisations related to PDF | 87066 | | Performance | Server | OPC performance optimisation | 88060 | | Performance | Server | Performance optimisation | 87613 | | Random Selection | Server | Alarm flooding of “Overdue to arrive” in Command Centre when Cardholders are Randomly selected and do not enter on time | 87170 | | REST API | Server | API fails on mobile “cards” with no FIDO credentials | 88220 | | Salto | Server | Insufficient privilege causing exception with Salto sync | 87909 | | Salto | Server | Salto performance optimisation | 88725 | | TK | Server | Bulk change for removing invalid default floors on a Cardholder that did not have any default floors causing Server exception | 87015 | | TK | Server | Changing the Biometric Card’s Facility Code would not refresh a cardholder’s access | 87854 | | VM Client | Workstation | Visitor Management Client gets disconnected if assign Card is used before manually assigning a card number | 86101 | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.security.gallagher.com/command-centre/command-centre-releases/release-history/unsupported-gallagher-command-centre-versions/command-centre-8.50-releases/8.50-maintenance-release-1.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.