Software Hub Premium 5.4 introduces targeted platform enhancements focused on scalability, governance, and operational consistency across shared and distributed environments. This release expands support for multi‑tenant deployments, improves AI‑assisted troubleshooting and extensibility, and strengthens resource and access controls across the platform. The updates in 5.4 are designed to address real operational requirements for running Software Hub at enterprise scale, across multiple teams, services, and hybrid deployment models.

What’s New in Software Hub Premium 5.4

Multitenancy

Multitenancy becomes Generally Available (GA) in Software Hub Premium 5.4, enabling a single Software Hub instance to securely support multiple business units, teams, or tenants while maintaining strict isolation of data, users, and configurations. This shared infrastructure model delivers faster onboarding and reduced costs by allowing organizations to share high‑value services and infrastructure such as watsonx.ai, watsonx Orchestrate, IKC engines, and GPUs on a unified platform, without compromising security, performance, or governance.

Key multitenancy capabilities in 5.4 include account‑based management and isolation, tenant‑level monitoring and quotas, separate identity provider support per account, entitlement controls, and usage‑based chargeback. Together, these capabilities provide the operational control, transparency, and flexibility required to run a secure, enterprise‑grade shared platform at scale.

AI Assistant

Software Hub Premium 5.4 delivers significant enhancements to the AI Assistant, strengthening troubleshooting, extensibility, and deployment capabilities. The enhanced Troubleshooting Agent introduces guided troubleshooting workflows, detailed research-plan visibility, and controlled execution steps, helping users resolve issues faster with greater clarity and confidence.

New MCP Server support provides a secure and centralized framework for accessing user, configuration, and service data, while the BYOA MCP Gateway extends connectivity to internal and third-party tools for broader integration and extensibility. AI Assistant setup now supports fully on-premises deployment, enabling all AI capabilities to run within the customer’s infrastructure for enhanced security and compliance. Additionally, Document Search leverages vectorized OpenSearch to enable RAG-ready, contextual search across Software Hub and Cloud Pak for Data documentation.

Remote Data Plane

Global Spark instance quota enforcement is now available for Remote Data Plane deployments, enabling controlled and predictable resource usage for Spark workloads running across distributed clusters. Quotas are applied consistently across remote data planes to prevent over‑consumption, enable fair sharing, and maintain enterprise‑level governance in hybrid and multi‑cloud environments.

What’s New in Software Hub

This release introduces the Backup and Restore (BR) Operator, which provides a Kubernetes-native approach to managing backup and restore workflows. The operator replaces manual, cpd-cli–driven procedures with a controller-based model that automates execution, incorporates built-in health checks, and simplifies setup and lifecycle management without requiring direct administrative access. In addition, restore functionality now supports targeting an alternative namespace within the same environment, enabling isolated validation of backups, safer testing of recovery scenarios, and controlled restoration of instances without impacting the original deployment.

Access Management enhancements improve audit coverage and traceability across the platform, ensuring user access changes are reliably captured when permissions are added or removed, including updates driven by LDAP group membership. In addition, access‑related actions for Cloud Pak for Business Automation now use consistent identifiers across services, making it easier to trace access flows end‑to‑end, simplify investigations, and support compliance audits.

The scheduler has been enhanced to support reserved compute resources for high‑priority projects, allowing administrators to define guaranteed capacity through a simple, project‑level UI. This update ensures critical workloads are protected from resource contention while eliminating the need for low‑level or scheduler‑specific configuration. Security is strengthened with support for certificate‑based authentication for SMTP connections, reducing reliance on static credentials while maintaining compatibility with existing configurations. Serviceability is enhanced through consolidated diagnostic log collection for watsonx.data, enabling centralized access to logs, metrics, and traces to simplify troubleshooting and support workflows.

Version 5.4 delivers significant performance improvements across install and upgrade workflows, with faster execution helping reduce installation time by up to 35 percent. These optimizations help reduce downtime and improve overall operational efficiency, resulting in a more streamlined and reliable deployment experience across lifecycle operations.