baseline: OpenMU upstream b5a0961 (fresh source)

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Acentech Dev
2026-07-14 19:00:35 +03:00
parent 450402e47d
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# C1 05 1 - ClientNeedsPatch (by server)
## Is sent when
This packet is sent by the server after the client (launcher) requested to check the patch version and it requires an update.
## Causes the following actions on the client side
The launcher will download the required patches and then activate the start button.
## Structure
| Index | Length | Data Type | Value | Description |
|-------|--------|-----------|-------|-------------|
| 0 | 1 | Byte | 0xC1 | [Packet type](PacketTypes.md) |
| 1 | 1 | Byte | 138 | Packet header - length of the packet |
| 2 | 1 | Byte | 0x05 | Packet header - packet type identifier |
| 3 | 1 | Byte | 0x1 | Packet header - sub packet type identifier |
| 4 | 1 | Byte | | PatchVersion |
| 6 | | String | | PatchAddress; The patch address, usually to a ftp server. The address is usually "encrypted" with the 3-byte XOR key (FC CF AB). |