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fern-support merged 1 commit into from
Mar 20, 2026
Merged

Update changelogs from fern repo #4427

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12 changes: 12 additions & 0 deletions fern/products/sdks/overview/csharp/changelog/2026-03-20.mdx
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## 2.47.0
**`(feat):`** Add receive hang detection via a background state monitor task. A new
`StateCheckInterval` property (default: 5 seconds) controls how often the
monitor polls `WebSocket.State`. When the state transitions to `Closed`,
`Aborted`, or `CloseReceived` — indicating the TCP connection died without
notifying the receive loop — the monitor cancels the pending `ReceiveAsync`
via a linked `CancellationTokenSource`. This works around known .NET runtime
issues where `ReceiveAsync` hangs indefinitely on silent TCP disconnections
(dotnet/runtime#110496) and `Abort()` fails to cancel a pending receive
(dotnet/runtime#44272). Set `StateCheckInterval` to `null` to disable.


## 2.46.0
**`(feat):`** Wire up WebSocket reconnection logic. The `WebSocketConnection` template now
contains a complete reconnection implementation ported from the Marfusios library:
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