Red Hat MTA 8.3 adds agentic migration, PVC mobility, and pipeline generators

Red Hat made migration toolkit for applications 8.3 generally available on October 8, 2026. The release adds agentic code modernization, direct storage mobility, and automated pipeline generation to OpenShift. It also becomes the official transition path for the migration toolkit for containers, which has reached end of support.

Container migration and PVC mobility

The toolkit now covers the full container migration lifecycle. It automates application manifest updates and data migration across clusters. Manifest handling uses inspectable Kustomize overlays, and the toolkit automates migration of cluster-level dependencies such as custom resource definitions and security context constraints. A read-only preflight tool validates API compatibility against target clusters.

For stateful workloads, storage mobility expands with three mechanisms. Direct PVC transfers move data between clusters over TLS-encrypted tunnels, using a stage-and-cutover flow that syncs most data while the application stays live, then performs a brief delta transfer during cutover. Intra-cluster StorageClass conversion shifts workloads between storage backends, such as migrating to a Container Storage Interface driver with zero application downtime. Platform teams can clone volume data to a newly provisioned PVC, and workloads re-bind automatically without manual manifest editing. Indirect PVC migration via S3 supports air-gapped and cross-cloud environments, with client-side encryption and credential management through Kubernetes Secrets, validated for AWS S3.

Automated build modernization arrives as a Technology Preview. The toolkit can convert legacy OpenShift BuildConfig resources into OpenShift Build custom resources directly within the transform pipeline, standardizing build pipelines by replacing vendor-specific build APIs.

Agentic migration factory

The agentic migration factory is a Developer Preview, described as an OpenShift-native execution engine that runs configurable, multi-agent migration workflows. It builds on Red Hat's earlier AI-assisted experience with Developer Lightspeed. Instead of writing prompts one by one, platform engineers and developers can run multi-agent workflows that analyze dependencies, update code, and validate builds across discrete stages.

Multi-stage workflows assign each step, such as code analysis, dependency remediation, build validation, or deployment configuration, to an agent that completes a specific task. Context passes between stages through a handoff file on a shared Git branch, enabling iterative code resolutions. Agents run in secure sandboxes with strict policy, RBAC, and audit boundaries, and credentials remain isolated from agent processes. Developers get real-time streaming output during execution and configurable maximum context windows to prevent LLM overflow. Multiple isolated migrations can run in parallel using Git as the persistence layer. The initial iteration leverages the Agent Sandbox project, with future updates transitioning to OpenShell for a more standardized execution environment.

Out-of-the-box generators

The release ships three new Helm-based generators under the Assets Generation framework. The OpenShift Pipelines Generator produces a Tekton pipeline for source fetch, container build, and config repository updates. The OpenShift GitOps Generator produces an Argo CD Application custom resource with automated sync, pruning, and self-healing. The Java Service Generator produces Kubernetes deployment manifests and a multi-stage Containerfile for Spring Boot and Quarkus JVM applications. Platform teams can associate these customizable generators with Archetypes in the MTA Hub for taxonomy-driven generation across application portfolios.

To test the new PVC migration capabilities, users can download the mta-ops CLI. For the agent workflow, Red Hat points to the official migration toolkit for applications documentation.