NEWS

NEWS for rsync 3.2.0 (UNRELEASED)
Protocol: 31 (unchanged)
Changes since 3.1.3:

  BUG FIXES:

    - Avoid a potential out-of-bounds read in daemon mode if argc can be made
      to become 0.

    - Fix the default list of skip-compress files for non-daemon transfers.

    - Fix xattr filter rules losing an 'x' attribute in a non-local transfer.

    - Avoid an error when a check for a potential fuzzy file happens to
      reference a directory.

    - Make the atomic-rsync helper script have a more consistent error-exit.

    - Make sure that a signal handler calls _exit() instead of exit().

    - Various zlib fixes, including security fixes for CVE-2016-9843,
      CVE-2016-9842, CVE-2016-9841, and CVE-2016-9840.

    - Fixed an issue with --remove-source-files not removing a source symlink
      when combined with --copy-links.

    - Fixed a bug where the daemon would fail to write early fatal error
      messages to the client, such as refused or unknown command-line options.

    - Fixed the block-size validation logic when dealing with older protocols.

    - Some rrsync fixes and enhancements to handle the latest options.

    - Fixed a crash in the --iconv code.

    - Fixed a bug in the writing of the batch.sh file (w/--write-batch) when
      the source & destination args were not last on the command-line.

  ENHANCEMENTS:

    - Various checksum enhancements, including the optional use of openssl's
      MD4 & MD5 checksum algorithms, some x86_64 optimizations for the rolling
      checksum, some x86_64 optimizations for the (non-openssl) MD5 checksum,
      the addition of xxhash checksum support, and a negotiation heuristic that
      ensures that it is easier to add new checksum algorithms in the future.
      Currently the x86_64 optimizations require the use of the --enable-simd
      flag to configure, but they will probably be enabled by default in the
      near future.  The environment variable RSYNC_CHECKSUM_LIST can be used
      to customize the preference order of the negotiation.

    - Various compression enhancements, including a negotiation heuristic that
      tries to pick the best compression option supported by both sides.  The
      environment variable RSYNC_COMPRESS_LIST can be used to customize the
      preference order of the heuristic (which will be more useful when new
      compression options are added).

    - Added the --atimes option based on the long-standing patch (just with
      some fixes that the patch has been needing).

    - Added --open-noatime option to open files using O_NOATIME.

    - Added the --write-devices option based on the long-standing patch.

    - Added openssl support to the rsync-ssl script via its renamed helper
      script, rsync-ssl-rsh.  Both bash scripts are now installed by default
      (removing the install-ssl-client make target).  Rsync was also enhanced
      to set the RSYNC_PORT environment variable when running a daemon-over-rsh
      script. Its value is the user-specified port number (set via --port or an
      rsync:// URL) or 0 if the user didn't override the port.

    - Added negated matching to the daemon's "refuse options" setting by using
      match strings that start with a "!" (such as "!compress*").

    - Added status output in response to a signal (via both SIGINFO & SIGVTALRM).

    - Added a --copy-as=USER option to give some extra security to root-run
      rsync commands into/from untrusted directories (such as backups and
      restores).

    - When resuming the transfer of a file in the --partial-dir, rsync will now
      update that partial file in-place instead of creating yet another tmp
      file copy.  This requires both sender & receiver to be at least v3.2.0.

    - Added support for RSYNC_SHELL & RSYNC_NO_XFER_EXEC environment variables
      that affect the pre-xfer exec and post-xfer exec rsync daemon options.

    - Fixed a problem with the --link-dest|--copy-dest code when --xattrs was
      specified along with multiple alternate-destination directories (it could
      possibly choose a bad file match while trying to find a better xattr
      match).

    - Various manpage improvements.

  DEVELOPER RELATED:

    - Silenced some annoying warnings about major()|minor() due to the autoconf
      include-file check not being smart enough.

    - Improved some configure checks to work better with strict C99 compilers.

    - The --debug=FOO options are no longer auto-forwarded to the server side,
      allowing more control over what is output & the ability to request debug
      data from divergent rsync versions.

    - Some perl scripts were recoded into awk and python3.

    - Some defines in byteorder.h were changed into static inline functions
      that will help to ensure that the args don't get evaluated multiple times
      on "careful alignment" hosts.

    - Some code typos were fixed (as pointed out by a Fossies run).