- - Added the --partial-dir=DIR option that lets you specify where to
- (temporarily) put a partially transferred file (instead of over-
- writing the destination file). E.g. --partial-dir=.rsync-partial
- Also added support for the RSYNC_PARTIAL_DIR environment variable
- that, when found, transforms a regular --partial option (such as
- the convenient -P option) into one that also specifies a directory.
-
- - Added --keep-dirlinks (-K), which allows you to symlink a directory
- onto another partition on the receiving side and have rsync treat it
- as matching a normal directory from the sender.
-
- - Added the --inplace option that tells rsync to write each destination
- file without using a temporary file. The matching of existing data
- in the destination file can be severely limited by this, but there
- are also cases where this is more efficient (such as appending data).
- Use only when needed (see the man page for more details).
-
- - Added the "write only" option for the daemon's config file.
-
- - Added long-option names for -4 and -6 (namely --ipv4 and --ipv6)
- and documented all these options in the man page.
-
- - Improved the handling of the --bwlimit option so that it's less
- bursty, more accurate, and works properly over a larger range of
- values.
-
- - The rsync daemon-over-ssh code now looks for SSH_CONNECTION and
- SSH2_CLIENT in addition to SSH_CLIENT to figure out the IP address.
-
- - Added the --checksum-seed=N option for advanced users.
-
- - Batch writing/reading has a brand-new implementation that is simpler,
- fixes a few weird problems with the old code (such as no longer
- sprinkling the batch files into different dirs or even onto different
- systems), and is much less intrusive into the code (making it easier
- to maintain for the future). The new code generates just one data
- file instead of three, which makes it possible to read the batch via
- stdin via a remote shell. Also, the old requirement of forcing the
- same fixed checksum-seed for all batch processing has been removed.
-
- - If an rsync daemon has a module set with "list = no" (which hides its
- presence in the list of available modules), a user that fails to
- authenticate gets the same "unknown module" error that they would get
- if the module were actually unknown (while still logging the real
- error to the daemon's log file). This prevents fishing for module
- names.
-
- - The daemon's "refuse options" config item now allows you to match
- option names using wildcards and/or the single-letter option names.
-
- - Each transferred file now gets its permissions and modified-time
- updated before the temp-file gets moved into place. Previously, the
- finished file would have a very brief window where its permissions
- disallowed all group and world access.
-
- - Support for literal IPv6 addresses was added to the URL parser for the
- "rsync:" scheme (e.g. rsync://[2001:638:500:101::21]:873/module/dir).
-
- - Added the ability to parse a literal IPv6 address in an "rsync:" URL
- (e.g. rsync://[2001:638:500:101::21]:873/module/dir).
+ - A new incremental-recursion algorithm is now used when rsync is talking
+ to another 3.0.0 version. This starts the transfer going more quickly
+ (before all the files have been found), and requires much less memory.
+ See the --recursive option in the manpage for some restrictions.
+
+ - The default --delete algorithm is now --delete-during when talking to a
+ 3.x rsync. This is a faster scan than using --delete-before (which is
+ the default when talking to older rsync versions), and is compatible with
+ the new incremental recursion mode.
+
+ - Added the --delete-delay option, which is a more efficient way to delete
+ files at the end of the transfer without needing a separate delete pass.
+
+ - Added the --acls (-A) option to preserve Access Control Lists. This is
+ an improved version of the prior patch that was available. (If you need
+ to have backward compatibility with old, patched versions, the new
+ acls.diff patch that will add that.)
+
+ - Added the --xattrs (-X) option to preserver extended attributes. This is
+ an improved version of the prior patch that was available. (If you need
+ to have backward compatibility with old, patched versions, the new
+ xattrs.diff patch that will add that.)
+
+ - Added the --fake-super option that allows a non-super user to preserve
+ all attributes of a file by using a special extended-attribute idiom.
+ There is also an analogous "fake super" option for an rsync daemon.
+
+ - Added the --iconv option, which allows rsync to convert filenames from
+ one character-set to another during the transfer. The default is to make
+ this feature available as long as your system has iconv_open(). If
+ compilation fails, specify --disable-iconv to configure and rebuild. If
+ you want rsync to perform character-set conversions by default, you can
+ specify --enable-iconv=CONVERT_STRING with the default value for the
+ --iconv option that you wish to use. For example, --enable-iconv=. is a
+ good choice. See the rsync man page for an explanation of the --iconv
+ option's settings.
+
+ - Added the --skip-compress=LIST option to override of the default list of
+ file suffixes that will not be compressed when using --compress.
+
+ - The --max-delete option now outputs a warning if it skipped any file
+ deletions, including a count of how many deletions were skipped. (Older
+ versions just silently stopped deleting things.)
+
+ - You may specify --max-delete=0 to a 3.0.0 client to request that it warn
+ about any files that it wants to delete without deleting anything. If
+ you're not sure what version the client is, you can use the less-obvious
+ --max-delete=-1, as old and new versions will both treat that as the
+ same request (though older versions don't warn).
+
+ - The --hard-link option now uses less memory on both the sending and
+ receiving side for all protocol versions. For protocol 30, the use of a
+ hashtable on the sending side allows us to more efficiently convey to the
+ receiver what files are linked together. This reduces the amount of data
+ sent over the socket by a considerable margin (rather than adding more
+ data), and limits the in-memory storage of the device+inode information
+ to just the sending side for the new protocol 30, or to the receiving
+ side when speaking an older protocol (note that older rsync versions kept
+ the device+inode information on both sides).
+
+ - A lot more --no-OPTION override options are now supported.