# `gno.land/r/moul/x/upgrade/store/root/v0` The **data realm** of pattern C. Holds the counter and grants write access to exactly one logic realm at a time, identified by the package path read off the crossing frame. `SetLive(path)` is the upgrade. See [the pattern](../../README.md) and [the exploration](../../../README.md). --- Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** โ€” moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage. **Dependency graph:** ![gno.land/r/moul/x/upgrade/store/root/v0 dependency graph](https://raw.githubusercontent.com/moul/gno-contracts/main/_assets/gno.land/r/moul/x/upgrade/store/root/v0/deps.png) > ๐Ÿงช **Highly experimental โ€” potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).