---
title: What's New in v2?
weight: 4
description: Learn what's new in the Crossplane v2 preview
---
**Crossplane v2 makes Crossplane more useful, more intuitive, and less
opinionated.**

Crossplane v2 makes three major changes:

* **Composite resources are now namespaced**
* **Managed resources are now namespaced**
* **Composition supports any Kubernetes resource**

**Crossplane v2 is better suited to building control planes for applications,
not just infrastructure.** It removes the need for awkward abstractions like
claims and provider-kubernetes Objects.

```mermaid
flowchart LR
  user(User)

  subgraph ns [my-namespace]
    direction LR
    xr("App (XR)")
  	dply("Deployment")
    svc("Service")
    rds("RDSInstance (MR)")
  end

  user --create-->xr
  xr compose-dply@--compose--> dply
  xr compose-svc@--compose--> svc
  xr compose-rds@--compose--> rds
compose-dply@{animate: true}

compose-dply@{animate: true}
compose-svc@{animate: true}
compose-rds@{animate: true}
```

{{<hint "tip">}}
Most users can upgrade to Crossplane v2 without breaking changes.

Read about Crossplane v2's [backward compatibility](#backward-compatibility).
{{</hint>}}

{{<hint "note">}}
This page assumes you're familiar with Crossplane. New to Crossplane? Read
[What's Crossplane]({{<ref "../whats-crossplane">}}) instead.
{{</hint>}}


## Namespaced composite resources

Crossplane v2 makes composite resources (XRs) namespaced by default.

A namespaced XR can compose any resource ([not just Crossplane resources](#compose-any-resource))
in its namespace.

A namespaced XR looks like this:

```yaml
apiVersion: example.crossplane.io/v1
kind: App
metadata:
  namespace: default
  name: my-app
spec:
  image: nginx
  crossplane:
    compositionRef:
      name: app-kcl
    compositionRevisionRef:
      name: app-kcl-41b6efe
    resourceRefs:
    - apiVersion: apps/v1
      kind: Deployment
      name: my-app-9bj8j
    - apiVersion: v1
      kind: Service
      name: my-app-bflc4
```

{{<hint "note">}}
Crossplane v2 moves all an XR's "Crossplane machinery" under `spec.crossplane`.
This makes it easier for users to tell which fields are important to them, and
which are just "Crossplane stuff" they can ignore.
{{</hint>}}

Composite resource definitions (XRDs) now have a `scope` field. The `scope`
field defaults to `Namespaced` in the new v2 version of the XRD API.

```yaml
apiVersion: apiextensions.crossplane.io/v2
kind: CompositeResourceDefinition
metadata:
  name: apps.example.crossplane.io
spec:
  scope: Namespaced
  group: example.crossplane.io
  names:
    kind: App
    plural: apps
  versions:
  - name: v1
  # Removed for brevity
```

You can also set the `scope` field to `Cluster` to create a cluster scoped XR. A
cluster scoped XR can compose any cluster scoped resource. A cluster scoped XR
can also compose any namespaced resource in any namespace.

With namespaced XRs there's no longer a need for claims. **The new namespaced
and cluster scoped XRs in Crossplane v2 don't support claims.**

{{<hint "tip">}}
Crossplane v2 is backward compatible with v1-style XRs.

When you use v1 of the XRD API `scope` defaults to a special `LegacyCluster`
mode. `LegacyCluster` XRs support claims and don't use `spec.crossplane`.

Read more about Crossplane v2's [backward compatibility](#backward-compatibility).
{{</hint>}}

## Namespaced managed resources

Crossplane v2 makes all managed resources (MRs) namespaced.

This enables a namespaced XR to by composed entirely of namespaced resources -
whether they're a Crossplane MR like an `RDSInstance`, a Kubernetes resource
like a `Deployment`, or a third party custom resource like a
[Cluster API](https://cluster-api.sigs.k8s.io) `Cluster`.

A namespaced MR looks like this:

```yaml
apiVersion: s3.aws.m.upbound.io/v1beta1
kind: Bucket
metadata:
  namespace: default
  generateName: my-bucket
spec:
  forProvider:
    region: us-east-2
```

Namespaced MRs work great with or without composition. Crossplane v2 isn't
opinionated about using composition and MRs together. Namespaces enable fine
grained access control over who can create what MRs.

{{<hint "note">}}
During the Crossplane v2 preview only namespaced AWS managed resources are
available.

<!-- vale gitlab.FutureTense = NO -->
Maintainers will update the managed resources for other systems including Azure,
GCP, Terraform, Helm, GitHub, etc to support namespaced MRs soon.
<!-- vale gitlab.FutureTense = YES -->
{{</hint>}}

{{<hint "tip">}}
Crossplane v2 is backward compatible with v1-style cluster scoped MRs.

<!-- vale gitlab.FutureTense = NO -->
New provider releases will support both namespaced and cluster scoped MRs.
Crossplane v2 considers cluster scoped MRs a legacy feature. Crossplane will
deprecate and remove cluster scoped MRs at a future date.
<!-- vale gitlab.FutureTense = YES -->

Read more about Crossplane v2's [backward compatibility](#backward-compatibility).
{{</hint>}}

## Compose any resource

Crossplane v2 isn't opinionated about using composition together with managed
resources.

You can create a composite resource (XR) that composes any resource, whether
it's a Crossplane MR like an `RDSInstance`, a Kubernetes resource like a
`Deployment`, or a third party custom resource like a
[CloudNativePG](https://cloudnative-pg.io) PostgreSQL `Cluster`.

```mermaid
flowchart LR
  user(User)

  subgraph ns [my-namespace]
    direction LR
    xr("App (XR)")
  	dply("Deployment")
    svc("Service")
    pg("CloudNativePG Cluster")
  end

  user --create-->xr
  xr compose-dply@--compose--> dply
  xr compose-svc@--compose--> svc
  xr compose-pg@--compose--> pg
compose-dply@{animate: true}

compose-dply@{animate: true}
compose-svc@{animate: true}
compose-pg@{animate: true}
```

This opens composition to exciting new use cases - for example building custom
app models with Crossplane.

{{<hint "tip">}}
You must grant Crossplane access to compose resources that aren't Crossplane
resources like MRs or XRs. Read
[the composition documentation]({{<ref "../composition/compositions#grant-access-to-composed-resources">}})
to learn how to grant Crossplane access.
{{</hint>}}

## Backward compatibility

Crossplane v2 makes the following breaking changes:

* It removes native patch and transform composition.
* It removes the `ControllerConfig` type.
* It removes support for external secret stores.
* It removes the default registry for Crossplane Packages.

Crossplane deprecated native patch and transform composition in Crossplane
v1.17. It's replaced by composition functions.

Crossplane deprecated the `ControllerConfig` type in v1.11. It's replaced by the
`DeploymentRuntimeConfig` type.

Crossplane added external secret stores in v1.7. External secret stores have
remained in alpha for over two years and are now unmaintained.

Crossplane v2 drops the `--registry` flag that allowed users to specify a default
registry value and now requires users to always specify a fully qualified URL when
installing packages, both directly via `spec.package` and indirectly as dependencies.
Using fully qualified images was already a best practice, but it's now enforced
to avoid confusion and unexpected behavior, to ensure users are aware of the
registry used by their packages.

{{<hint "important">}}
As long as you're not using these deprecated or alpha features, Crossplane v2 is
backward compatible with Crossplane v1.x.
{{</hint>}}

{{<hint "important">}}
Before upgrading to Crossplane v2, please ensure all your Packages are using fully
qualified images that explicitly specify a registry (`registry.example.com/repo/package:tag`).

Run `kubectl get pkg` to look for any packages that aren't fully qualified, then
update or rebuild any Packages to use fully qualified images as needed.
{{</hint>}}

<!-- vale gitlab.FutureTense = NO -->
Crossplane v2 supports legacy v1-style XRs and MRs. Most users will be able to
upgrade from v1.x to Crossplane v2 without breaking changes.

Existing Compositions will require minor updates to work with Crossplane v2
style XRs. A migration guide will be available closer to the final release of
Crossplane v2.
<!-- vale gitlab.FutureTense = YES -->
