Yes, according to this post
by Veeam employee Tom Sightler, rsync was included in v7. He points out that it is a very useful feature:
Tom Sightler wrote:in cases of restoring entire directories where many of the files are unchanged, or for large files since it will only transfer changes.
foggy wrote:Right, most likely it was intentionally removed to make appliance size smaller. Anyway, thanks for your feedback.
The size of the statically linked rsync binary on my Android is 793 KB. If this was compiled into Busybox, it would be smaller than that. The size of the of the FLR appliance in v8 is ~100MB. Is less than a megabyte of space worth removing an extremely valuable feature?
Please bring rsync back to the FLR appliance in v8!!