> ## 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 v2.27.0: August 10, 2026

> Sonic and Stable are now available as deployment targets, covering both Mainnet and Testnet on each protocol.

This release adds Sonic and Stable as deployment targets, covering Mainnet and Testnet on both protocols. Node workloads also get a client-appropriate shutdown window.

## Sonic support

Sonic Mainnet and Testnet are now available as deployment targets, each running a single sonicd node from Sonic Labs.

* Sonic Mainnet — explorer at [sonicscan.org](https://sonicscan.org)
* Sonic Testnet — explorer at [testnet.sonicscan.org](https://testnet.sonicscan.org)
* Sync — Mainnet bootstraps from a pre-built chain snapshot, while Testnet starts from a pruned genesis export and syncs the remainder from the network

## Stable support

Stable Mainnet and Testnet are now available as deployment targets, each running a single stabled node.

* Stable Mainnet — explorer at [stablescan.xyz](https://stablescan.xyz)
* Stable Testnet — explorer at [testnet.stablescan.xyz](https://testnet.stablescan.xyz)
* Architecture — one stabled process carries both the CometBFT consensus engine and an embedded EVM, and the node exposes the EVM JSON-RPC while its CometBFT RPC and Cosmos gRPC stay internal
* Consensus timing — tuned per network, so Mainnet and Testnet each run on their own vendor-recommended values
* Sync — both networks bootstrap from a snapshot

## Graceful node shutdown

Node workloads now shut down with a client-appropriate grace period instead of a fixed timeout. Clients that need time to flush state to disk get it, which reduces the chance of a corrupted database after a restart, a rescale, or a node upgrade.

See [System requirements](/docs/self-hosted/requirements) for the full specification and [Supported clients and protocols](/docs/self-hosted/supported-clients-and-protocols) for the deployment catalog.

## Component versions

| Component                | Version |
| ------------------------ | ------- |
| cp-ui                    | v3.10.1 |
| cp-deployments-api       | v1.7.0  |
| cp-workflows             | v3.27.0 |
| cp-auth                  | v0.5.1  |
| cp-bolt                  | v1.12.0 |
| blockchain-node-exporter | v1.4.0  |