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Add protocol version negotiation for future compatibility

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- Add version negotiation messages (0x20 versionHello, 0x21 versionAck)
- Implement VersionHello and VersionAck message types with platform info
- Add ProtocolVersion struct for version management and negotiation
- Update BinaryProtocol to check supported versions
- Add version negotiation to connection flow before Noise handshake
- Maintain backward compatibility with legacy peers (assume v1)
- Add comprehensive test suite with 40+ test cases
- Update documentation with version negotiation details

This ensures BitChat clients can negotiate protocol versions for smooth
upgrades while maintaining full backward compatibility with existing clients.
This commit is contained in:
jack
2025-07-15 14:33:37 +02:00
parent 59927486eb
commit 3fb39b8a30
11 changed files with 1532 additions and 9 deletions
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bitchat.xcodeproj/project.pbxproj
+24
View File
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