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---
fixes:
- |
OpenSSH has deprecated its use of scp/rcp protocol in favor of
SFTP, which the embedded Apache mina-sshd in widely-deployed
Gerrit versions does not yet support. The default officially
changed in OpenSSH 9.0 (some distributions, such as Fedora and
CentOS, switched their default behavior to this as early as
OpenSSH 8.7 or 8.8), leading to a ``subsystem request failed on
channel 0`` error during commit-msg hook retrieval. Now
git-review will attempt to detect whether scp's -O option is
available to force use of the legacy scp/rcp protocol, and apply
it if so. Future git-review versions may change the fallback
behavior once an SFTP subsystem is implemented and available for
a new Gerrit release.
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