The Claris FileMaker Server 21.1.4 update is now available and includes important fixes that address known issues from previous versions: Key Fixes 1. Field definitions incorrectly read from cache. A bug introduced in version 21.0 caused field definitions to be incorrectly cached, resulting in symptoms such as: Empty related fields Missing value lists and indexes “Insufficient privileges (error -9)” messages 2. Windows only: Server-side script sessions limited by CPU cores. Version 21.1.3 limited simultaneous server-side script sessions to the number of CPU cores on Windows. This impacted I/O-bound environments by unnecessarily queuing sessions. 21.1.4 resolves this by allowing up to 50 concurrent script sessions on Windows before queueing begins—regardless of CPU cores. These sessions may be triggered by schedules, OData, or Perform Script on Server (PSoS). Note: This behavior is not controlled by the AllowPSoS setting. Claris Recommends: To ensure system stability, it is advised to limit active clients to 40 - 45 simultaneous sessions. Exceeding 50 may result in delays, memory overload, or session hangs. Do you need assistance with upgrading? DataTherapy are pleased to announce that Claris FileMaker 2024 (version 21.1) managed private cloud hosting packages are immediately available. DataTherapy can provide scalable, managed FileMaker packages for businesses of all size. Full details of all of our packages can be found here . We can offer a range of a variety of enhanced options such as domain management, custom SSL certificates, VPN, VLAN, disaster recovery and integration with other technologies. If you need additional information on upgrading to the new release, advise on how to migrate your current on-premises FileMaker Server to the cloud, or would like to arrange a free trial of any of our packages then please don’t hesitate to contact our team .