Add sv operations calendar reference

docs-main/docs.json

@@ -515,6 +515,14 @@
               "global-synchronizer/deployment/community-helm-templating",
               "global-synchronizer/deployment/community-keycloak-config"
             ]
+          },
+          {
+            "group": "Schedules",
+            "hidden": true,
+            "searchable": true,
+            "pages": [
+              "shared/sv-operations-schedule"
+            ]
           }
         ]
       },

docs-main/shared/sv-operations-schedule.mdx

@@ -0,0 +1,61 @@
+---
+title: "SV Operations Schedule and release calendar"
+description: "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."
+keywords:
+  [
+    "release calendar",
+    "SV Operations Schedule",
+    "upgrade schedule",
+    "release date",
+    "when is the next upgrade",
+    "weekly upgrades",
+    "LSU",
+    "logical synchronizer upgrade",
+    "topology freeze",
+    "protocol upgrade",
+    "minimum Splice version",
+    "DAR versions",
+    "DevNet schedule",
+    "TestNet schedule",
+    "MainNet schedule",
+    "sv-cal",
+  ]
+---
+
+# 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)