Update: scp uses SFTP now

2023-08-12

In my first "real" blog post, I was looking for an alternative to the scp utility. The authors had described the SCP protocol as "outdated, inflexible and not readily fixed" and recommended switching to alternatives like rsync or SFTP.

In the years since I made that post, the scp utility was switched to the SFTP protocol. OpenSSH 8.7 introduced experimental support, and since OpenSSH 9.0, released on 8th April 2022, scp uses SFTP by default. The old SCP protocol is still available via the -O flag.