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CatraProto is an MTProto client fully written in C#.

https://catraproto.github.io/docs
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🎉 CatraProto 1.1 released!

This release ships many, many improvements that make the library way easier, less troublesome and more reliable.

🔝 Features:
- Two Factor Authentication (2FA) login is now supported.
- Layer version updated to 143
- Add a built-in text formatter which allows you to style your texts in beautiful ways!
- The login flow was written in order use updates to control it
- You will now receive updates whenever the session is invalid for any reason
- The updates-limiter feature can now be disabled
- The Logger class now offers a TemplateExpression property that returns a template to be parsed by Serilog.Expressions
- UpdateNewChannelMessage and UpdateEditChannelMessage are now automatically replaced by UpdateNewMessage and UpdateEditMessage corrispetively
- Added GetSelfAsync method to return all information about the logged-in user.
- Almost all requests will now be postponed until the user is logged-in

🐛 Bug fixes:
- Less resources are now used when filling update gaps
- Fixed some bugs that could cause the instance to not be responsive after a certain period of time
- Cancellation now gets respected when requests get migrated to other DCs
- The overall implementation of MTProto has been improved
- Bug fixes and other improvements

⚠️ Breaking changes:
- All methods requiring raw InputPeer* objects, InputChannel and methods are now hidden in order to only expose their simplified version.
- The following raw methods are now hidden: auth.signIn, auth.signUp, auth.resendCode, auth.sendCode, auth.checkPassword, auth.importBotAuthorization, auth.logOut, auth.bindTempAuthkey.
- The login flow must be implemented through the OnSessionUpdateAsync method declared in the IEventHandler interface
- The SerializationFailed class was renamed to SerializationFailedError
- The ClientState values returned by InitClientAsync can now only be Working and Corrupted.
- Client-side error codes are not prefixed by -10 anymore

❗️ Note: Breaking changes have been made to the serialization scheme. Once a session gets serialized by this version, it becomes unusable on older versions.

❤️ Also big thanks to @iDubno for the suggestions on how to improve the documentation!

📖 The documentation has also been updated to reflect these changes and further expanded
🦑 GitHub: https://github.com/CatraProto/Client
📦 Nuget: https://www.nuget.org/packages/CatraProto.Client/1.1.0
🗣 Discussion group: @CatraProtoDiscussion
⚠️ The next version of CatraProto will only support .NET 6+