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+# Cjdns Changelog
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+
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+## Version 22 - Noisemaker
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+February 3, 2023
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+
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+It's been since September 18, 2020 when cjdns v21 was tagged out, and brought only small experimental inclusion of
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+Rust code to cjdns. v22 makes Rust a main language in which cjdns is written, and it is foreseen that in v23, almost
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+all interactions with the OS will be done in Rust.
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+
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+### Major Changes
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+1. New protocol version v22, compatibility is maintained with v21 and v20 (no change in compatibility)
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+ * This new protocol version brings a new CryptoAuth protocol based on the NOISE protocol used by WireGuard® VPN.
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+ The NOISE protocol is used in all direct peering connections where both sides are v22.
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+ * The legacy CryptoAuth protocol remains but has been entirely re-written in Rust,
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+ the C version remains only for testing purposes.
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+2. RPC `InterfaceController_peerStats()` Now contains Integer noiseProto: 1 if using the NOISE protocol for communication
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+3. RPC `InterfaceController_disconnectPeer()` Now disconnects ALL sessions to given peer address instead of only the first
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+4. RPC `InterfaceController_timestampPackets()` has been removed, as it only affected debug logging and was rarely used
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+5. Libuv code is now compiled using the cjdns build system, it is nolonger compiled using gyp so **python is nolonger needed to build cjdns**
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+6. Removed `cjdroute --bench` which was not an accurate measure of expected performance
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+
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+### Minor Changes
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+1. Made fields of Message structure so they will be accessed through accessors - first step to move Message into Rust
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+2. Make cjdns Error return value use a Rust anyhow error
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+3. In preparation for removal of Libuv, we have replaced the following Libuv functions with Rust implementations:
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+ * IP Address manipulation functions: `uv_inet_pton` / `uv_inet_pton`
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+ * Current time: `uv_now` / `uv_hrtime`
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+ * Child process: `uv_spawn` / `uv_exepath` / `uv_process_kill`
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+4. We nolonger put `makekeys`, `mkpasswd`, `privatetopublic`, `publictoip6`, `randombytes`, and `sybilsim` in the main folder
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+ * In the future: `makekeys`, `privatetopublic`, `publictoip6`, and `randombytes` will be built as a separate optional component
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+ * `mkpasswd` will be dropped because it is too trivial to be worth maintaining
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+ * `sybilsim` will be dropped because it is nolonger maintained
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+5. Removed from SwitchCore.c the possibility of an interface to be "down" which never exists in reality
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+6. New logger for Rust code which uses the cjdns logger as a backend
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+7. CryptoAuth is now an (asynchronous) Iface rather than a function you call to encrypt and decrypt
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+
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+# Older versions
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+For earlier versions, see ./util/version/Version.h
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Caleb James DeLisle