After upgrading, cannot receive Updates correctly (webhook)

[Smiuv]

Hello, I use C# library. And after updating, I realized that the controller of my application does not convert the updates.

The following example:

[HttpPost]
public async Task<IActionResult> Update([FromBody]Update update)
{
    return Ok();
}

After a lot of testing I found that the date value of a message does not convert correctly and neither does the value of Message.Entities Such as type, which is equal to bot_command, cannot be identified, and that is what caused the error.

I tried to convert the following json manually but I got the above errors:

{"update_id":29643942,
"message":{"message_id":16864,"from":{"id":221136,"is_bot":false,"first_name":"Test","username":"Test","language_code":"en"},"chat":{"id":222136,"first_name":"Test","username":"Test","type":"private"},"date":1731493308,"text":"/start","entities":[{"offset":0,"length":6,"type":"bot_command"}]}}

message date error.
message entities error (type).
The json above is the update that caused the error.

[wiz0u]

please follow these pages when upgrading from v19 to recent versions:

• https://telegrambots.github.io/book/3/updates/webhook.html
• https://telegrambots.github.io/book/migrate/Version-21.x.html
• https://telegrambots.github.io/book/migrate/Version-22.x.html