# Keeper Gateway 1.5.5

**Note:** Version 1.5.4 was immediately updated to 1.5.5 on June 19 after resolving a critical bug. Please ensure you are running v1.5.5.

### Improvements

* Added support for IPv6 connection targets
* Added health checks for service monitoring - [see detailed documentation](/keeperpam/privileged-access-manager/getting-started/gateways/health-checks.md)
* Added support for copying files over WinRM using chunked transfers
* Improved startup performance of Windows gateways
* Improved consistency of Windows gateway auto-updates
* Reduced log file verbosity

### Bug Fixes

* Fixed issue with v1.5.4 where the service stops after 5 minutes on Windows
* Resolved issue where users received a “The service did not start due to a logon failure” error during Gateway installation, even when the provided service password was correct
* Resolved issue where managed service accounts on Windows gateway did not start the gateway service due to logon failures
* Resolved issue where rotations were not honoring custom symbols configured in password complexity
* Resolved issue where RBI sessions were failing to start even when RBI was allowed on PAM config
* Resolved issue where upon installing a new gateway, one-time access token is still prompted even with previous gateway configurations
* Resolved an issue where gateway dependent processes did not terminate properly when the Keeper Gateway was shut down
* Other minor improvements and bug fixes

### Gateway Installation

For instructions on installing or updating your Keeper Gateway, visit this page:

{% embed url="<https://docs.keeper.io/en/keeperpam/privileged-access-manager/getting-started/gateways>" %}


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