20. Release Notes¶
20.1. Robin Cloud Native Storage v5.4.18-228¶
The Robin CNS v5.4.18-228 Release Notes document provides information about upgrade paths, an improvement, and fixed issues.
Release Date: September 05, 2025
20.1.1. Upgrade Paths¶
The following are the supported upgrade paths for Robin CNS v5.4.18-228:
Robin CNS v5.4.16-105 to Robin CNS v5.4.18-228
Robin CNS v5.4.8-280 to Robin CNS v5.4.18-228
Note
After upgrading to Robin CNS v5.4.18-228, if you are using the Robin Client outside the
robincli
Pod, you must upgrade to the latest version of the Robin Client.If you have installed Robin CNS with the
skip_postgres_operator
parameter to use the Zalando PostgreSQL operator, then you must first upgrade the Zalando PostgreSQL operator to v1.11.0 or later before upgrading to Robin CNS v5.4.18-228.After upgrading from any supported Robin CNS version, starting with Robin CNS v5.4.18, certificates will be automatically renewed.
20.1.2. Improvement¶
20.1.2.1. Readiness probe support for IOMGR service¶
Starting with Robin CNS v5.4.18, Robin CNS introduces Readiness probe support for the IOMGR service. These probes verify that both RIO and RDVM services are operational and ready to serve I/O operations. When both services are ready, then only Robin CNS marks the IOMGR service as ready. For more information about Readiness probe, see Readiness probe.
20.1.3. Fixed Issues¶
Reference ID |
Description |
---|---|
RSD-9809, RSD-10087 |
The out-of-sync issue with Patroni Pods that led to a Robin Service Outage is fixed. |
RSD-9861, RSD-9886, RSD-9944 |
The RPC client is dropping pending I/O requests without processing the received response. The SyncVMI issue is fixed. |
RSD-9882 |
The issue of IOMgr failing to restart the volume remount operation due to flaky Kubernetes API service after the StorMgr recovers from network partition is fixed. |
RSD-9867 |
The issue of creating a thick clone volume from its snapshot getting stuck in the hydrating state is fixed. |
RSD-9775 |
The Robin CNS v5.4.16 installation failed because the |
RSD-9603 |
When a node with an active master Pod is rebooted, in the |
RSD-9518 |
The Sherlock tool is incorrectly reporting a node as down. This issue is fixed by removing the SSH service from its diagnostic checks. |
RSD-9422 |
In a rare scenario, when a thick clone volume’s hydration is in progress, if that clone volume’s PVC is deleted, the |
RSD-7375 |
A volume clone creation with a larger size than the source volume is not working. This issue is fixed. |
RSD-9165 |
When a node is removed and added back to the cluster, Robin Patroni Pods are stuck in the |
RSD-9654 |
In a rare scenario, IO operations hang up on the Robin volume slice due to a network blip. This issue is fixed. |
RSD-10021 |
The Patroni cluster might go down if some of the nodes are cordoned in a rare scenario. This issue is fixed. |
PP-38537 |
After deleting a backup, unregistering a storage repo fails with the following error message: Storage repo is associated with volume group This issue is fixed. |
20.1.4. Technical Support¶
Contact Robin Technical support for any assistance.