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v18.1.6

gravitational/teleportv18.1.6Aug 21, 2025by camscale

AI Summary

Teleport v18.1.6 is a patch release that fixes several bugs including a regression affecting Windows desktop connections via Web UI. The release includes Teleport Connect fixes, Azure VMSS integration, OIDC JWT-Secured Authorization Requests support, and performance improvements through Brotli compression.

Key Highlights

  • WARNING: Regression prevents Windows desktop connections via Web UI (workarounds: downgrade to 18.1.4, use Teleport Connect, or change keyboard layout)
  • Fixed Teleport Connect crash when assuming access requests with active app/database connections
  • Added Azure VMSS (Virtual Machine Scale Sets) joining support
  • Added JWT-Secured Authorization Requests support to OIDC Connector
  • Web assets now pre-compressed with Brotli for improved load times

New Features

  • Azure VMSS joining enabled
  • JWT-Secured Authorization Requests support for OIDC Connector
  • TELEPORT_UNSTABLE_GRPC_RECV_SIZE environment variable for custom gRPC message size
  • TBot now logs current version on startup
  • Improved error messages for users without MFA devices enrolled
  • Brotli compression for web assets

Full Release Notes

> [!WARNING]
> This release includes a regression that prevents connecting to Windows desktops via the Web UI.
>
> The following workarounds are available:
> - Downgrade proxy servers to 18.1.4
> - Use Teleport Connect instead of the web UI to access desktops
> - Set your preferred keyboard layout (under account settings) to something other than _system_

## Description

* Fixed an uncaught exception in Teleport Connect on Windows when closing the app while the `TELEPORT_TOOLS_VERSION` environment variable is set. [#58131](https://github.com/gravitational/teleport/pull/58131)
* Fixed a Teleport Connect crash that occurred when assuming an access request while an application or database connection was active. [#58109](https://github.com/gravitational/teleport/pull/58109)
* Enable Azure joining with VMSS. [#58094](https://github.com/gravitational/teleport/pull/58094)
* Add support for JWT-Secured Authorization Requests to OIDC Connector. [#58063](https://github.com/gravitational/teleport/pull/58063)
* Fixed an issue that could cause some hosts not to register dynamic Windows desktops. [#58061](https://github.com/gravitational/teleport/pull/58061)
* TBot now emits a log message stating the current version on startup. [#58056](https://github.com/gravitational/teleport/pull/58056)
* Improve error message when a User without any MFA devices enrolled attempts to access a resource that requires MFA. [#58042](https://github.com/gravitational/teleport/pull/58042)
* Web assets are now pre-compressed with Brotli. [#58039](https://github.com/gravitational/teleport/pull/58039)
* Add TELEPORT_UNSTABLE_GRPC_RECV_SIZE env var which can be set to overwrite client side max grpc message size. [#58029](https://github.com/gravitational/teleport/pull/58029)

## 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](https://cdn.teleport.dev/teleport-access-slack-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-slack-v18.1.6-linux-arm64-bin.tar.gz) 
* Mattermost [Linux amd64](https://cdn.teleport.dev/teleport-access-mattermost-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-mattermost-v18.1.6-linux-arm64-bin.tar.gz)
* Discord [Linux amd64](https://cdn.teleport.dev/teleport-access-discord-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-discord-v18.1.6-linux-arm64-bin.tar.gz)
* Terraform Provider [Linux amd64](https://cdn.teleport.dev/terraform-provider-teleport-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/terraform-provider-teleport-v18.1.6-linux-arm64-bin.tar.gz) | [macOS amd64](https://cdn.teleport.dev/terraform-provider-teleport-v18.1.6-darwin-amd64-bin.tar.gz) | [macOS arm64](https://cdn.teleport.dev/terraform-provider-teleport-v18.1.6-darwin-arm64-bin.tar.gz) | [macOS universal](https://cdn.teleport.dev/terraform-provider-teleport-v18.1.6-darwin-universal-bin.tar.gz)
* Event Handler [Linux amd64](https://cdn.teleport.dev/teleport-event-handler-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-event-handler-v18.1.6-linux-arm64-bin.tar.gz) | [macOS amd64](https://cdn.teleport.dev/teleport-event-handler-v18.1.6-darwin-amd64-bin.tar.gz)
* PagerDuty [Linux amd64](https://cdn.teleport.dev/teleport-access-pagerduty-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-pagerduty-v18.1.6-linux-arm64-bin.tar.gz)
* Jira [Linux amd64](https://cdn.teleport.dev/teleport-access-jira-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-jira-v18.1.6-linux-arm64-bin.tar.gz)
* Email [Linux amd64](https://cdn.teleport.dev/teleport-access-email-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-email-v18.1.6-linux-arm64-bin.tar.gz)
* Microsoft Teams [Linux amd64](https://cdn.teleport.dev/teleport-access-msteams-v18.1.6-linux-amd64-bin.tar.gz) | [Linux arm64](https://cdn.teleport.dev/teleport-access-msteams-v18.1.6-linux-arm64-bin.tar.gz)