> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chainstack Self-Hosted v1.9.0: May 11, 2026

> Failed deployments now recover via a new revision, revisions track the initiating user, cp-bolt clears stuck PVCs, and cpctl patches single containers.

This release adds recovery paths for failed deployments, an audit trail for who changed which deployment revision, a self-healing storage layer for stuck PersistentVolumeClaims, and finer-grained container patching during upgrades.

## Recover from failed deployments

Failed deployments are no longer terminal. Submitting a new revision against a deployment in the `failed` state transitions it back to `pending` and re-runs the deployment with the updated configuration. Operators can adjust the node spec and retry without manual database surgery or recreating the deployment from scratch.

## Revision audit trail

Each deployment revision now records who initiated it. The revision payload and history view in the Control Panel expose the initiating user, giving teams a clear audit trail of who changed which node configuration and when.

## Self-healing stuck volumes

cp-bolt now ships a reaper that detects PersistentVolumeClaims stuck on finalizers after pod deletion and clears them automatically. Stuck PVCs were a common cause of node restarts that never completed on clusters where the CSI driver crashed or was reinstalled mid-operation. The reaper closes that failure mode and exposes metrics so operators can see when it has had to intervene.

## Container-level upgrade patching

`cpctl upgrade` gains an option to patch individual containers as part of the upgrade pipeline, instead of treating every release as an all-or-nothing chart rollout. This shortens the change footprint for targeted image bumps and reduces the blast radius of routine maintenance upgrades.

## Component versions

| Component          | Version |
| ------------------ | ------- |
| cp-ui              | v3.0.0  |
| cp-deployments-api | v0.34.0 |
| cp-workflows       | v1.14.0 |
| cp-auth            | v0.4.2  |
| cp-bolt            | v1.9.0  |
| cp-tracer          | v0.1.1  |