All Deckhouse components will be restarted during the release update.
Important update notes
- Kubernetes 1.21 support has been discontinued.
- The [operator-trivy](https://deckhouse.io/documentation/v1/modules/500-operator-trivy/) module is no longer available in Community Edition.
- The terraform provider for [cloud-provider-aws](https://deckhouse.io/documentation/v1.45/modules/030-cloud-provider-aws/environment.html#json-policy) module was bumped to `4.50.0`, therefore there are new requirements for deckhouse IAM user in AWS. It is necessary to add the allowed actions below:
- `ec2:DescribeInstanceTypes`
- `ec2:DescribeSecurityGroupRules`
Major changes
- **Support for Kubernetes 1.26** has been added, and support for Kubernetes 1.21 has been removed.
- **The new [loki](https://deckhouse.io/documentation/v1.45/modules/462-loki/) module** deploys Grafana Loki-based log storage and configures Deckhouse components to work with it.
- The Nginx Ingress controller update mechanism has been improved thanks to the use of [OpenKruise](https://github.com/deckhouse/deckhouse/pull/4124) advanced DaemonSet. This will prevent occasional downtimes that might otherwise occur.
- The Nginx Ingress Controller 1.6 has been added (it is based on Nginx `1.21.6`). Please check the [list of important changes](https://github.com/deckhouse/deckhouse/pull/3923)…
- For better security, Deckhouse components now use the checksum instead of the image tag when referencing the container image.
- It is now easier to disable or enable modules:
shell
kubectl -ti -n d8-system exec deploy/deckhouse -- deckhouse-controller module disable deckhouse-web
- The **[descheduled](https://deckhouse.io/documentation/v1.45/modules/400-descheduler/)** module configuration is now carried out via the [Descheduler](https://deckhouse.io/documentation/v1.45/modules/400-descheduler/cr.html#descheduler) custom resource. The existing configuration will be automatically converted.
- The **[log-shipper](https://deckhouse.io/documentation/v1.45/modules/460-log-shipper/)** module now provides options to use a [buffer](https://deckhouse.io/documentation/v1.45/modules/460-log-shipper/cr.html#clusterlogdestination-v1alpha1-spec-buffer), a [rate limit](https://deckhouse.io/documentation/v1.45/modules/460-log-shipper/cr.html#clusterlogdestination-v1alpha1-spec-ratelimit), as well as an arbitrary regex pattern for parsing multiline logs (spec.multilineParser.custom parameter in [ClusterLoggingConfig](https://deckhouse.io/documentation/v1.45/modules/460-log-shipper/cr.html#clusterloggingconfig) and [PodLoggingConfig](https://deckhouse.io/documentation/v1.45/modules/460-log-shipper/cr.html#podloggingconfig)).
- The **[virtualization](https://deckhouse.io/documentation/v1.45/modules/490-virtualization/)** module has been updated, which has greatly improved its stability.
- The design of the authentication page in the **[user-auth](https://deckhouse.io/documentation/v1/modules/150-user-authn/)** module has been [updated](https://github.com/deckhouse/deckhouse/pull/4305).
- A dashboard for cilium has been added to Grafana:
Component version updates
- Cilium: `1.12.8`
- Terraform provider (cloud-provider-aws): `4.50.0`
- Dashboard: `2.7.0`
- Kubernetes control plane: `1.23.17`, `1.24.13`, `1.25.9`, `1.26.4`
- Kubevirt: `0.59.0`
- LINSTOR: `1.21.0`
- Vector (log-shipper): `0.28.1`
See [CHANGELOG v1.45](https://github.com/deckhouse/deckhouse/blob/main/CHANGELOG/CHANGELOG-v1.45.md) for more details.