> For the complete documentation index, see [llms.txt](https://vinu.gitbook.io/vinuchain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vinu.gitbook.io/vinuchain/technical-docs/vinuchain-mainnet.md).

# VinuChain Mainnet

VinuChain mainnet is the production network (chain ID `207`). This section covers connecting a wallet to mainnet and running mainnet nodes.

{% hint style="danger" %}
**Scheduled upgrade — 29 August 2026, 10:00 UTC.** Mainnet is being brought to full parity with testnet: the **ELEMONT** release activates SfcV2, Shanghai, Cancun, Prague (EIP-7702 set-code transactions), the Elemont consensus fixes, the BLS12-381 and latest-EVM precompiles, and PaybackV2 — along with the `vc_*` RPC namespace, `vc_getPaybackBalance`, and `eth_config`/`vc_config`.

**Node operators must upgrade in that window** — this is a consensus upgrade. See the [Mainnet Upgrade Guide (ELEMONT)](/vinuchain/technical-docs/vinuchain-mainnet/chain-upgrade-guide.md); two pre-flight items need days of lead time.

**Fee-refund stakers must migrate** to a new Payback contract — see [the migration steps](/vinuchain/technical-docs/vinuchain-mainnet/chain-upgrade-guide.md#if-you-stake-in-the-payback-fee-refund-contract).

Until that upgrade activates, mainnet runs the pre-ELEMONT rule set (`Berlin`, `London`, `Llr`, `Podgorica`) on the V1 staking contract.
{% endhint %}

For the full ELEMONT feature set, operator prerequisites, and new RPC surface, see [VinuChain ELEMONT Upgrade](/vinuchain/technical-docs/vinuchain-mainnet/elemont-upgrade.md).

For all chain IDs, RPC endpoints, and explorer URLs in one place, see [Network Details](/vinuchain/technical-docs/network-details.md).