Changes

• Handle disconnects better to allow for file descriptor reuse for both clients.
• Parallel clients no longer forcefully disconnect their clients at de-allocation -
  now done by each individual SSHClient instead when that SSHClient goes out of scope.
  This allows reading of output and anything associated with output, exit codes et al,
  to work as long as one of either the client or an associated output object is alive.
• SSHClient.disconnect is now a no-op and deprecated - handled by object de-allocation.
• SSHClient.eagain is now a public function - wrapper for polling socket and calling a given socket using function.
• SSHClient.eagain_write is now a public function - wrapper for polling socket and calling a given socket using
  write function.
• SSHClient, TunnelServer and LocalForwarder now use their own gevent pools for greenlets spawned so they
  are cleaned up correctly at shutdown.
• SSHClient.execute is now deprecated in favour of SSHClient.run_command.

Fixes

• Forwarder threads used for proxies would not exit gracefully at interpreter shutdown, sometimes causing segfaults.
• Client, both parallel and single, going out of scope would cause reading output from existing output objects
  to break - #274
• Explicitly calling SSHClient.disconnect would sometimes cause segfaults at interpreter shutdown.
• Keepalives being configured on native client would keep client in scope forever.

Changes

• Minimum version updates for ssh2-python and ssh-python.
• Added support for Python 3.12+, removed support for Python <3.8.
• Package tests under top level tests directory are now cross platform and may be run by vendors.
  Project CI specific ntegration tests moved into their own space.

Fixes

• Calling HostOutput.stdin.flush with a pssh.clients.ssh client would raise exception.

Changes

• Added alias optional parameter to SSHClient and HostConfig for passing through from parallel clients.
  Used to set an SSH host name alias, for cases where the real host name is the same and there is a need to
  differentiate output from otherwise identical host names - #355. Thank you @simonfelding.
• Parallel clients now read a common private key only once, reusing it for all clients it applies to,
  to improve performance.
• Performance improvements for all clients when reading output.
• Output reading for all clients has been changed to be less prone to race conditions.

Fixes

• Calling ParallelSSHClient.join without ever running run_command would raise exception. Is now a no-op.

Changes

• Updated default log formatter set by pssh.utils enable logger functions.

Fixes

• Using native clients under pssh.clients.native with very short lived commands would sometimes cause unexpected
  stalls/delays in reading output from completed commands when a client timeout setting was used - #344.

Changes

• Updated minimum required versions for ssh2-python and ssh-python.

Changes

• All client configuration can now be provided via HostConfig on parallel clients.
• proxy_pkey can now also be provided as bytes for proxy authentication from in-memory private key data - #338
• Removed deprecated since 2.0.0 dictionary support for host_config entries.

Fixes

• Even more rare race condition would sometimes cause scp_send to write incomplete files - #337