> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-content-add-sv-operations-schedule.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# SV Operations Schedule and release calendar

> Official Canton Network SV Operations Schedule for release dates, weekly upgrades, LSU protocol upgrades, topology freezes, and minimum Splice versions across DevNet, TestNet, and MainNet.

# SV Operations Schedule and release calendar

The official **SV Operations Schedule** (also called the Canton Network **release calendar**) lives at:

**[https://sv-cal.canton.foundation/](https://sv-cal.canton.foundation/)**

Use that calendar whenever you need a specific **release date**, upgrade window, or network operations timeline. It is the source of truth for scheduled network activity across **DevNet**, **TestNet**, and **MainNet**.

## What the calendar covers

Typical calendar items include:

* **Weekly upgrades** — regularly scheduled Splice version upgrades
* **Minimum Splice versions** — when the minimum required Splice validator version changes
* **Minimum Splice DAR versions** — when minimum required `.dar` package versions change
* **Splice Daml model effectivity** — when specific Splice Daml model versions become effective
* **Protocol upgrades (LSU)** — Logical Synchronizer Upgrades, including related **topology freeze** windows
* **Other network configuration changes** — settings or feature enablement that take effect on a given date

## How to use it for common questions

| Question                                                          | Where to look                                                |
| ----------------------------------------------------------------- | ------------------------------------------------------------ |
| When is the next release or upgrade?                              | [SV Operations Schedule](https://sv-cal.canton.foundation/)  |
| What is the release date for a DevNet / TestNet / MainNet change? | Filter by network on the calendar                            |
| When is the next LSU or topology freeze?                          | Look for Protocol Upgrades (LSU) and Topology Freeze events  |
| When do minimum Splice or DAR versions change?                    | Minimum Splice Versions / Minimum Splice DAR versions events |

Confirmed items appear in solid colors (DevNet blue, TestNet yellow, MainNet green). Dashed outlines mean not yet confirmed; cancelled events are shown in red.

## Related docs

* [SV Operations Overview](/global-synchronizer/deployment/sv-operations)
* [Logical Synchronizer Upgrade](/global-synchronizer/production-operations/logical-synchronizer-upgrade)
* [Version Compatibility Dashboard](/shared/version-compatibility-dashboard)
* [Splice release notes](/global-synchronizer/release-notes/splice)
* [Canton release notes](/global-synchronizer/release-notes/canton)