teleport 18.3.0

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Created by brew bump

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Details

release notes

## Description
Web UI Workload ID
Teleport's Web UI now lists all workload identity resources registered in the cluster.
Relay Service
Teleport now includes a new relay service that acts as a lightweight proxy service. This new service can receive connections from both SSH clients and agents.
The relay service can be used to avoid routing SSH connections through the broader Teleport control plane, providing the ability to optimize network flows in large or complex deployments.
Multi-cluster Discovery
Multiple Teleport clusters can now discover the same EC2 instances simultaneously through auto-discovery, with each cluster operating independently without interference.
Kubernetes Health Checks
Teleport now continuously monitors the health of your registered Kubernetes clusters and displays their status directly in the web UI. When connecting to Kubernetes clusters, Teleport automatically routes you to healthy services, ensuring reliable access to your infrastructure.
ElastiCache Serverless
Teleport Database Access now supports connecting to ElastiCache Serverless databases.
Other fixes and improvements

The browser window for SSO MFA is slightly taller in order to accommodate larger elements like QR codes. #60703
Slack access plugin no longer crashes in the event access list is unsupported. #60671
Okta-managed apps are now pinned correctly in the web UI. #60667
Create and edit GitLab join tokens from the Web UI. #60649
Teleport Connect now displays the profile name (instead of the cluster name) in the UI when referring to the profile; this affects only clusters where the cluster name was specifically set to something else than the proxy hostname during setup. #60615
Fixed tsh scp failing on files that grow during transfer. #60607
Allowed moderated session peers to perform file transfers. #60604
Added support for regular expression conditions for AccessMonitoringRule. #60598
Added support for SSE and streamable-HTTP MCP servers. #60519
Added health checks for enrolled Kubernetes clusters. #60492
MWI: tbot's auto-generated service names are now simpler and easier to use in the /readyz endpoint. #60458
Client tools managed updates stores OS and ARCH in the configuration. This ensures compatibility when TELEPORT_HOME directory is shared with a virtual instance running a different OS or architecture. #60414
Added a Workload Identities page to the web UI to list workload identities. #59479

Enterprise:

Enabled Access Automation Rule schedule configuration within the WebUI.
Updated Entra ID plugin installation UI to support group filter configuration.

Download
Download the current and previous releases of Teleport at https://goteleport.com/download.
Plugins
Download the current release of Teleport plugins from the links below.

Slack Linux amd64 | Linux arm64
Mattermost Linux amd64 | Linux arm64
Discord Linux amd64 | Linux arm64
Terraform Provider Linux amd64 | Linux arm64 | macOS amd64 | macOS arm64 | macOS universal
Event Handler Linux amd64 | Linux arm64 | macOS amd64
PagerDuty Linux amd64 | Linux arm64
Jira Linux amd64 | Linux arm64
Email Linux amd64 | Linux arm64
Microsoft Teams Linux amd64 | Linux arm64

View the full release notes at https://github.com/gravitational/teleport/releases/tag/v18.3.0.

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