Version 3.3.0

Version 3.3.0

What's New

• Resumable uploads and downloads — SFTPClientProtocol.upload and download now accept resume: true. Existing destination size is used as the transfer offset; if the destination does not exist, the operation starts as a fresh transfer.
• Partial file uploads — SFTPFileProtocol.write(from:) can start at a local file offset and limit the number of bytes transferred with startFromFileOffset and upTo.
• Append and bounded downloads — SFTPFileProtocol.read(to:) can append to an existing local file and limit the number of bytes transferred with append and upTo.
• Transferred byte counts — File-level upload and download helpers now return the number of bytes successfully transferred as a discardable result.

try await client.upload(
    from: localURL,
    to: remotePath,
    resume: true
) { _, _, _, _ in true }

try await client.download(
    from: remotePath,
    to: localURL,
    resume: true
) { _, _, _, _ in true }

Resume uses the existing destination size and assumes its contents are a valid prefix of the source.

Bug Fixes

• Updated RSA and DSA host-key validation to use provider-backed EVP_PKEY APIs, removing deprecated OpenSSL calls and restoring compatibility with modern OpenSSL headers.