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[2.22.5] - 2026-07-30

  • Exported src/ssh_userauth.dart in lib/dartssh2.dart to expose SSHUserInfoRequest, SSHUserInfoPrompt, SSHAuthMethod, and SSHChangePasswordResponse #188. Thanks @vicajilau.

[2.22.4] - 2026-07-27

  • Advertised standard RFC 8731 key exchange name curve25519-sha256 alongside legacy curve25519-sha256@libssh.org [#187]. Thanks [@nickn17].

[2.22.3] - 2026-07-20

  • Fixed an SSH channel leak in SftpClient.close() by closing the underlying SSH channel and returning Future<void> to allow awaiting channel teardown [#186]. Thanks [@keinstn].

[2.22.2] - 2026-07-15

  • Added flush() to SSHSocket, SSHClient, and SSHChannel to allow force flushing of buffered outgoing data [#183]. Thanks @vicajilau.

[2.22.1] - 2026-07-13

  • Fixed a keepalive issue where overlapping pings could occur and caught errors during ping execution. Thanks @vicajilau.

[2.22.0] - 2026-07-03

  • Added optional handshakeTimeout and authTimeout to SSHClient to limit connection negotiation and user authentication times [#182]. Thanks @GT-610.

[2.21.1] - 2026-07-02

  • Fixed an SSHTransport busy-loop (100% CPU / ANR) that occurred when a partial packet remained in the read buffer [#179]. Thanks @vicajilau.

[2.21.0] - 2026-07-01

  • Added SSHSession.waitForExit({Duration? timeout}) to await remote process exit status with an optional timeout #176. Thanks @GT-610.
  • Hardened SOCKS5 dynamic forwarding (half-close streaming, dialing guards, timeout cancellation, malformed UTF-8 decoding, and buffer limits) #175. Thanks @GT-610.
  • Hardened SSH agent channel frame validation (rejecting empty or oversized frames) and fallback RSA signature type checks #175. Thanks @GT-610.
  • Improved EC private key parsing with proper ASN.1 OID curve detection, public point derivation validation, and robust comments decoding #175. Thanks @GT-610.

[2.20.0] - 2026-06-30

  • BREAKING: Bumped the minimum Dart SDK constraint to 3.0.0 #23. Thanks @vicajilau.
  • BREAKING: Declared OpenSSHKeyPair as a mixin class to comply with Dart 3.0 class modifier rules #23. Thanks @vicajilau.
  • Offloaded all cryptographic key exchange (KEX) calculations to background isolates using Isolate.run on platforms that support it, preventing the Flutter main thread from blocking/freezing during connection #23. Thanks @vicajilau.
  • Refactored internal key exchange isolate communication payloads (X25519, NIST Curves, DH) to use Dart 3.0 type-safe Records #23. Thanks @vicajilau.

[2.19.0] - 2026-06-30

  • Added tolerant HTTP-date parsing to accept all RFC 7231 §7.1.1.1 HTTP-date formats (IMF-fixdate, RFC 850, asctime) for HTTP response headers [#170]. Thanks @GT-610.
  • Added chunked transfer-encoding decoding for HTTP response bodies according to RFC 7230 §4.1, improving interoperability with HTTP/1.1 servers [#171]. Thanks @GT-610.
  • Added support for OpenSSH's posix-rename@openssh.com SFTP extension to perform atomic renames with POSIX semantics (replace destination if it exists) when advertised by the server [#172]. Thanks @GT-610.
  • Added SftpFile.downloadToRandomAccess to download a remote file directly into a dart:io RandomAccessFile using out-of-order pipelined writes, maximizing download performance on high-latency links [#173]. Thanks @GT-610.
  • Fixed a connection drop bug during AEAD (AES-GCM) decryption caused by incorrect padding length validation offset calculation [#168]. Thanks [@nuclear06].

[2.18.0] - 2026-05-18

  • Fixed AES-GCM cipher encryption and decryption sequence number/nonce counter resetting during key exchanges #165. Thanks @vicajilau.
  • BREAKING: SSHHostkeyVerifyHandler now receives an OpenSSH-style SHA256:<base64> host key fingerprint instead of the previous raw MD5 digest, so host key pinning code must be updated accordingly [#162]. Thanks [@thyssentishman].

[2.17.1] - 2026-04-12

  • Made SSHPem.decode accept CRLF (\r\n) line endings in addition to LF when parsing PEM content #157. Thanks @gkc.

[2.17.0] - 2026-03-28

  • Improved Web/WASM compatibility by updating SSHSocket conditional imports so web runtimes consistently use the web socket shim and avoid incorrect native socket selection #88. Thanks @vicajilau.
  • Added local dynamic forwarding (SSHClient.forwardDynamic) with SOCKS5 NO AUTH + CONNECT, including configurable handshake/connect timeouts and connection limits.
  • Added AES-GCM (aes128-gcm@openssh.com, aes256-gcm@openssh.com) AEAD groundwork in transport and cipher negotiation; currently opt-in (not enabled by default yet). chacha20-poly1305@openssh.com remains pending #26. Thanks @vicajilau.

[2.16.0] - 2026-03-24

  • BREAKING: Changed SSHChannelController.sendEnv() from void to Future<bool> to properly await environment variable setup responses and avoid race conditions with PTY requests #102. Thanks @itzhoujun and @vicajilau.
  • Clarified shell stdio wiring for CLI-only usage and guarded example/shell.dart against missing local terminal handles (for example GUI-launched Windows .exe) #121. Thanks @bradmartin333 and @vicajilau.
  • Added support for parsing legacy unencrypted EC PRIVATE KEY PEM format in SSHKeyPair.fromPem #109. Thanks @jooy2 and @vicajilau.
  • Added SSHClient.runWithResult() to expose command output together with exitCode and exitSignal while keeping run() as a convenience API #99. Thanks @falrom and @vicajilau.
  • Added non-breaking high-level SFTP download() / downloadTo() APIs and read pipeline tuning knobs (chunkSize, maxPendingRequests) for improved large-file throughput while preserving stream compatibility #124. Thanks @vicajilau.
  • Made SFTP directory/file name parsing tolerant to malformed UTF-8 bytes to avoid FormatException on non-UTF-8 server filenames #95. Thanks @vicajilau.

[2.15.0] - 2026-03-20

  • Updated pointycastle dependency to ^4.0.0 #131. Thanks @vicajilau.
  • Added foundational X11 forwarding support with session x11-req API, incoming x11 channel handling, and protocol tests #1. Thanks @vicajilau.
  • Exposed SSH ident configuration from SSHClient #135. Thanks @Remulic and @vicajilau.
  • Propagated the underlying exception in SSHAuthAbortError through reason for better diagnostics #133. Thanks @james-thorpe and @vicajilau.
  • Accepted SSH-1.99-* server banners as SSH-2 compatible during version exchange and added regression tests #132. Thanks @james-thorpe and @vicajilau.
  • Added SSH agent forwarding support (auth-agent-req@openssh.com) with in-memory agent handling and RSA sign-request flag support #139. Thanks @Wackymax and @vicajilau.
  • Normalized HTTP response line parsing in SSHHttpClientResponse to handle CRLF endings consistently and avoid trailing line-ending artifacts in parsed status/header fields #145. Thanks @vicajilau.
  • Fixed SFTP packet encoding/decoding consistency: SftpInitPacket.decode now parses extension pairs correctly and SftpExtendedReplyPacket.encode now preserves raw payload bytes #145. Thanks @vicajilau.

[2.14.0] - 2026-03-19

  • Fixed SSH connections through bastion hosts where the target server sends its version string immediately upon connection (which is standard behavior per RFC 4253) #141. Thanks [@shihuili1218].
  • Adds a new forwardLocalUnix() function, which is an equivalent of ssh -L localPort:remoteSocketPath #140. Thanks [@isegal].

[2.13.0] - 2025-06-22

[2.12.0] - 2025-02-08

  • Fixed streams and channel not closing after receiving SSH_Message_Channel_Close [#116]. [@cbenhagen].
  • Fixed lint issues.
  • Added tests.
  • Updated dependencies.

[2.11.0] - 2024-11-19

  • Fixed Type 'Uint8' not found issue.

[2.10.0] - 2024-08-29

  • Improved Readme.
  • Bug fix in SftpFileWriter for #50, #71, #100.
  • Added DartShell product #101.
  • Fixed dynamic return on SftpFileOpenMode in | operator #80.
  • DCM updated.
  • Fixed warnings related with new DCM version.
  • Dependencies updated.
  • Fixed Flutter 3.24 issue.

[2.9.1-pre] - 2023-04-02

  • Make the type of SSHForwardChannel.sink to StreamSink<List<int>> to match its super class.
  • Added SSHHttpClient for easy http request forwarding.

[2.9.0-pre] - 2023-03-31

  • Better handling of channel close.
  • Make SSHForwardChannel implement SSHSocket for better interoperability.

[2.8.2] - 2023-03-07

  • Make SftpFileWriter implement Future<void> for backward compatibility.

[2.8.1] - 2023-03-07

  • Export SftpFileWriter

[2.8.0] - 2023-03-06

  • SftpFile.write now returns a SftpFileWriter that can be used to control the writing process.
  • Support SftpClient.statvfs and SftpFile.statvfs.
  • Support automatic keepalive.

2.7.3

  • Update README.md
  • Move cli into separate package.
  • Properly handle chunk read error during stream read.

2.7.2+3

  • Update README.md

2.7.2+2

  • Update README.md

2.7.2+1

  • Update README.md

2.7.2

  • Upgrade pinenacl to 0.5.0.
  • Fix bug in exporting openssh private key to pem, thanks @PIDAMI

2.7.1

  • Upgrade rsa authentication algorithm to rsa-sha2-256.

2.7.0

  • Support encrypted RSA format private key

2.6.1

  • Allow username with @ in dartssh2 command #24

2.6.0

  • Allow ignoring stdout or stderr in SSHClient.run.
  • Add SSHAuthFailError and SSHAuthAbortError.
  • Fix file type detection.
  • Fix empty identity handling #21
  • Add connection reset handing.
  • Add more tests

2.5.0

  • Fix js import path #18.
  • Ignore remote data after channel closed.

2.4.4

  • Fix lint errors

2.4.3

  • Remove unused dependencies
  • Fix lint errors

2.4.2

  • Fix null check error in kill() #17
  • More examples in README.md

2.4.1

  • More examples in README.md
  • Limit the maximum size of channel packets

2.4.0

  • Support session stdin streaming and EOF

2.3.1

  • Support ssh v2 when version string does not contain CR #14, thanks @Migarl

2.3.1-pre

  • Add remoteVersion field to SSHClient

2.3.0-pre

  • Add description field in SSHChannelOpenError

2.2.0

  • Update README.md
  • Support export keypair to PEM

2.1.0-pre

  • Update README.md
  • Support loading OpenSSH encrypted pem files.

2.0.0-pre

  • Implements local port forwarding
  • Implements remote port forwarding
  • Implements SFTP client
  • More supported algorithms
  • Added dartsftp command

1.2.0-pre

  • Rework login logic.
  • dartssh command now supports login with public key.

1.1.4-pre

  • dartssh command now supports terminal window resize.

1.1.3-pre

  • Add --verbose option in dartssh command.

1.1.2-pre

  • Fix typos.

1.1.1-pre

  • Organize exports.

1.1.0-pre

  • Dependency update.
  • Sound null safety.
  • Replace deprecated pedantic with package:lints
  • Fix crash running vim by @linhanyu. #1

1.0.4+4

  • Increase test coverage and documentation.

1.0.3+3

  • Fix tunneled WebSocket issue.

1.0.2+2

  • Add example/README.md

1.0.1+1

  • Add SSHTunneledSocketImpl, SSHTunneledWebSocketImpl, and SSHTunneledBaseClient.

1.0.0+0

  • Initial release.