ChangeLog

2.0.0-rust (2026-01-31):
- Full conversion of ZRTP core to Rust (RFC 6189 compliant)
- Implementation of modern crypto: X25519, SHA-256, AES-CFB
- Addition of FFI layer for C/C++ integration (cbindgen)
- Dual-mode persistence: SQLite (modern) and Binary Flat File (legacy parity)
- Bit-perfect parity with legacy C++ handshake and cache formats
- Memory-safe packet parsing using 'nom'

1.5.2:

- a C wrapper was added to enable C programs to use GNU ZRTP
- some fixes in the code (race condition solved)
- better support of multi-stream mode
- change the old cxx file extension to cpp, some build system don't
  like the old cxx (Android NDK for example)
- and much more

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Add CMake configuration files.