20. Release Notes¶
20.1. Robin Cloud Native Storage v5.4.18-221¶
The Robin CNS v5.4.18-221 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 v5.4.18-221:
Robin CNS v5.4.16-105 to Robin CNS v5.4.18-221
Robin CNS v5.4.8-280 to Robin CNS v5.4.18-221
Note
After upgrading to Robin CNS v5.4.18-221, 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 v5.4.18-221.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 once the STORMgr recovers from failure is fixed. |
RSD-9867 |
The issue of creating a thick clone volume from its snapshot was getting stuck in 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 one of the nodes 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 hydration is in progress, if that clone volume’s PVC is deleted, |
RSD-7375 |
The volume populators feature is not working as expected in the Robin CNS v5.4.8. 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 hung up on the Robin volume slice due to a network blip. This issue is fixed. |
RSD-10021 |
If the |
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.