- 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 simple checksum negotation
- 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.
-
- - Improved the --atimes patch and promoted it to be in the release.
+ 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.
- - Improved the --write-devices patch and promoted it to be in the release.
+ - 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
- Added negated matching to the daemon's "refuse options" setting by using
match strings that start with a "!" (such as "!compress*").
- - Added a status output based on a signal (via both SIGINFO & SIGVTALRM).
+ - 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
- 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).