+ - Rsync no longer returns a usage error when used with one local source arg
+ and no destination: this now implies the --list-only option, just like
+ the comparable situation with a remote source arg.
+
+ - Added the --copy-dirlinks option, a more limited version of --copy-links.
+
+ - The sender's hash table for checksum information was improved to make it
+ more efficient when updating really large files (starting from around
+ 2.5GB, but most visibly for much larger files). This prevents the hash
+ table from getting overloaded, which saves CPU time (and real time) at
+ the expense of a little extra memory (and it actually saves memory for
+ normal sized files).
+