5 See also this page @ref{Новости, on russian}.
12 Get rid of @command{redo} build system during installation, as there are
13 virtually none dependencies, just only compilation of the Go code.
18 @section Release 8.8.3
22 Fixed @command{nncp-reass} command, that incorrectly reported about
23 wrong last chunk's size if it is multiple of the chunk-size.
26 Updated dependencies. Go 1.20+ is required now.
31 @section Release 8.8.2
35 Updated Yggdrasil library, with several other ones.
40 @section Release 8.8.1
44 Fixed @command{nncp-daemon} failing with unauthenticated connection and
45 enabled @option{-autotoss}.
53 @section Release 8.8.0
57 Fixed buildability under Go 1.19.
60 Minimal required Go version is 1.17.
68 @section Release 8.7.2
72 More intuitive, clear and slightly more flexible behaviour of @command{nncp-rm}.
75 @command{nncp-rm} also removes corresponding @file{hdr/} file for each
81 @section Release 8.7.1
85 @command{nncp-xfer} now correctly checks for @file{seen/} files for
91 @section Release 8.7.0
95 @command{nncp-ack} does not acknowledge ACK-packets, preventing an
99 @command{nncp-ack} previously did not remove corresponding @file{hdr/} files.
102 @command{nncp-rm} now takes list of packet from @code{stdin} when
103 @option{-pkt} option is used.
106 @command{nncp-ack} now generates list of ACK packets it created, that
107 could be used as an input to @command{nncp-rm} to remove outbound ACK
113 @section Release 8.6.0
117 @command{nncp-xfer} checks if locally copied packet's checksum differs
118 from the source's one.
121 @command{nncp-call} has bad return code if its queues contain unfinished jobs.
124 @command{nncp-ack} command appeared, that sends explicit packet receipt
125 acknowledgement (ACK packet). That acknowledgement deletes referenced
126 packet from the outbound spool.
129 Ability to turn @code{fsync} operation off using @env{$NNCPNOSYNC=1}
130 environment variable.
133 Added various indices in documentation, that should help searching in it.
138 @section Release 8.5.0
142 Fixed @command{nncp-bundle} workability.
145 Mistakenly @option{-mcd-wait} option was enabled by default in
149 Ability to override internal default timeout for online protocol through
150 @env{$NNCPDEADLINE} environment variable. Can be useful for very high
154 NNCP builds on OpenBSD.
159 @section Release 8.4.0
163 Multicast related interface names (@code{mcd-listen} and @code{mcd-send}
164 configuration options) are now regular expressions. By default
165 @command{nncp-cfgnew} uncomments them now with @code{.*} interface name.
168 @command{nncp-call} command has @option{-mcd-wait} option to wait for
169 multicast packet about node's address.
172 @command{nncp-file} command skips everything that is neither regular
173 file nor directory during pax-archive creation.
178 @section Release 8.3.0
182 Fixed building issues on 32-bit systems.
187 @section Release 8.2.0
191 Yggdrasil uses pure-Go IPv6+TCP network stack, instead of naked μTP
192 transport protocol, making it able to work as an ordinary TCP server
193 inside overlay network.
196 Yggdrasil's @code{prv;bind1,bind2;pub@dots{}}-like configuration strings are
197 replaced with URL-like ones (@code{yggdrasils://PRV?bind=BIND1&bind=BIND2&pub=PUB}).
200 Ability to pass multicast-related parameters to Yggdrasil configuration.
203 @command{nncp-daemon} is able to listen on both TCP and Yggdrasil-driven
204 sockets simultaneously.
207 @command{nncp-daemon}'s listening on peering endpoint socket is optional
208 -- you can be reached through the peers.
213 @section Release 8.1.0
217 @command{nncp-cfgdir} does not require @code{self} section existence in
221 Ability to act as Yggdrasil network client, using online protocol on top of it.
226 @section Release 8.0.2
230 Fixed sending ability to areas.
235 @section Release 8.0.1
239 Fixed incorrect @code{freq.chunked} value calculation. If it was missed,
240 then chunked transfer mode was forcefully turned on anyway.
243 Fixed incorrect full file's size calculation in @file{.nncp.meta}.
248 @section Release 8.0.0
252 @strong{Incompatible} encrypted packet format change: payload and pad
253 sizes are sent in-bound in the encrypted stream. That gives ability to
254 streamingly create encrypted packets, without knowing sizes in advance,
255 without creating temporary file or buffer data in memory.
258 Proper encrypted packet padding verification is done now. This is not
259 critical issue, but previously neither padding value, nor its size were
260 authenticated, giving ability to iteratively strip trailing bytes and
261 determine payload's size by observing the reaction of the encrypted
265 @command{nncp-exec} loses its @option{-use-tmp} option, because of
266 streaming-compatible encrypted packets format.
269 @command{nncp-file} and @command{nncp-exec} commands have
270 @option{-maxsize} option, limiting maximal resulting encrypted packet's
271 maximal size (returning error if it is exceeded). Could be useful,
272 because no payload size could be known in advance.
277 @section Release 7.7.0
281 Experimental @code{kqueue} and @code{inotify} based notifications
282 support about spool directory changes, for reducing their often reading
286 @file{.seen} and @file{.hdr} files moved to @file{seen/} and @file{hdr/}
287 subdirectories, for faster scanning of spool directories.
288 Current files migration required:
291 $ find $NNCPSPOOL -type f -name "*.hdr" -exec rm @{@} +
293 $ find $NNCPSPOOL -type d -name rx | while read rx ; do
296 find . -type f -name "*.seen" | while read fn ; do
297 mv $fn seen/$@{fn%.seen@}
301 $ find $NNCPSPOOL -type d -name area | while read area ; do
302 find $area -type f -name "*.seen" | while read fn ; do
311 @section Release 7.6.0
315 Logging may be done to specified opened file descriptor
316 (@env{$NNCPLOG=FD:5} for example).
317 That is friendly to use under @command{daemontools}.
320 Added additional checks of public keys existence in configuration file,
321 preventing some commands from failing.
326 @section Release 7.5.1
330 NNCP builds on NetBSD.
335 @section Release 7.5.0
339 @command{nncp-daemon} is compatible with UCSPI-TCP interface, so log
340 will contain remote side's address (when running under appropriate
341 utility). @option{-ucspi} option should be used instead of @option{-inetd}.
344 @command{nncp-call} can be UCSPI-TCP client, using @option{-ucspi} option.
347 Do not exit if some of MCD network interfaces can not be listened --
348 only warn about that.
353 @section Release 7.4.0
357 Fixed simultaneous @command{nncp-daemon} and @command{nncp-caller} MCD work.
362 @section Release 7.3.2
366 @command{hjson-cli} utility builds in vendor-mode now.
371 @section Release 7.3.1
375 Fixed possibly left opened file descriptor in online commands.
378 Severely decreased memory usage of MTH hashing.
383 @section Release 7.3.0
387 Fixed some workability problems on 32-bit systems with big files.
390 Ability to use directory with a bunch of files as a configuration.
391 @command{nncp-cfgdir} command appeared.
396 @section Release 7.2.1
400 Small optimizations in online commands.
405 @section Release 7.2.0
409 @command{nncp-trns} command appeared for manual transition packets creation.
412 If destination node of transitional packet has non empty @option{via}
413 route, then do not ignore, but use it.
416 Do not relay multicast packet to area message's originator, that
417 obviously has seen its own packet.
420 Much less memory usage during MTH hashing when offset is zero: when
421 packet is not resumed, but for example checked with @command{nncp-check}
427 @section Release 7.1.1
431 Fixed failing directories @code{fsync} after @file{.seen} file creation.
436 @section Release 7.1.0
440 Multicasting areas feature appeared. Implemented merely by an additional
441 plain packet type with @command{nncp-toss}, @command{nncp-file} and
442 @command{nncp-exec} commands modification.
445 Fixed workability of @command{nncp-file} and @command{nncp-exec}
446 commands, that use temporary file (@code{stdin} and @option{-use-tmp}).
449 Fixed disappearing bad return code in @command{nncp-exec} command.
452 Fixed invalid @file{.hdr} generation when transitional packets are used.
455 @option{-all} option appeared in @command{nncp-rm} command, applying to
456 all the nodes at once.
459 @option{-cycle} option appeared in @command{nncp-check} command, looping
460 the check in infinite cycle.
463 @command{nncp-rm} command can take node alias name.
466 @command{nncp-pkt} can parse @file{.hdr} files.
471 @section Release 7.0.0
475 Minimal required Go version is 1.13.
478 Merkle Tree-based Hashing with BLAKE3 (MTH) is used instead of BLAKE2b.
479 Because of that, there are backward @strong{incompatible} changes of
480 encrypted files (everything laying in the spool directory) and
481 @file{.meta} files of chunked transfer.
483 Current implementation is far from being optimal: it lacks
484 parallelizable calculations and has higher memory consumption: nearly
485 512 KiB for each 1 GiB of file's data. Future performance and memory
486 size optimizations should not lead to packet's format change. But it is
487 still several times faster than BLAKE2b.
490 Resumed online downloads, because of MTH, require reading only of the
491 preceding part of file, not the whole one as was before.
494 @command{nncp-hash} utility appeared for calculating file's MTH hash.
497 BLAKE2 KDF and XOF functions are replaced with BLAKE3 in encrypted
498 packets. Lowering number of used primitives. Also, its encrypted
499 packet's header is used as an associated data during encryption.
502 MultiCast Discovery uses
503 @verb{|ff02::4e4e:4350|} address instead of @verb{|ff02::1|}.
506 @command{nncp-cfgenc} mistakenly asked passphrase three times during encryption.
509 @command{nncp-stat} reports about partly downloaded packets.
512 Updated dependencies.
517 @section Release 6.6.0
521 @command{nncp-daemon}, @command{nncp-call} and @command{nncp-caller}
522 commands wait for all background checksummers completion after
523 connection is finished.
526 Added possibility of address determining through multicast announcement
527 in local area network, so called MCD (MultiCast Discovery).
532 @section Release 6.5.0
536 Fixed segfault in @command{nncp-daemon} when SP handshake did not succeed.
539 Fixed possible bad return code ignoring in automatic tosser.
542 Fixed race during file descriptors closing when online protocol call is
543 finished, that could lead to write error of received packet fragment.
546 Kill all packet transmission progress bars in @command{nncp-daemon},
547 @command{nncp-call} and @command{nncp-caller} when call is finished.
552 @section Release 6.4.0
556 Fixed possible race in online protocol, that lead to panic.
561 @section Release 6.3.0
565 Fixed possible panic while showing progress during online protocol.
570 @section Release 6.2.1
574 Three places in logs contained excess @code{%s}.
579 @section Release 6.2.0
583 Returned @command{nncp-caller}'s @option{-autotoss*} options workability.
586 Yet another logging refactoring and simplification.
587 Should be no visible differences to the end user.
592 @section Release 6.1.0
596 Optimization: most commands do not keep opened file descriptors now.
597 Previously you can exceed maximal number of opened files if you have got
598 many packets in the spool directory.
601 Optimization: do not close file descriptor of the file we download
602 online. Previously each chunk lead to expensive open/close calls.
605 Online downloaded files are saved with @file{.nock} (non-checksummed)
606 suffix, waiting either for @command{nncp-check}, or online daemons to
607 perform integrity check.
610 Optimization: files, that are not resumed, are checksummed immediately
611 during the online download, skipping @file{.nock}-intermediate step.
614 Ability to store encrypted packet's header in @file{.hdr} file, close to
615 the packet itself. That can greatly increase performance of packets
616 listing on filesystems with big block's size.
621 @section Release 6.0.0
625 Log uses human readable and easy machine parseable
626 @url{https://www.gnu.org/software/recutils/, recfile} format for the
627 records, instead of structured RFC 3339 lines. Old logs are not readable
628 by @command{nncp-log} anymore.
631 @option{-autotoss*} option workability with @command{nncp-daemon}'s
632 @option{-inetd} mode.
635 Call's @option{when-tx-exists} allows to make a call only when outbound
636 packets exists. Combined with seconds-aware cron expression that can be
637 used as some kind of auto dialler.
640 @command{nncp-cronexpr} command allows you to check validity and
641 expectations of specified cron expression.
646 @section Release 5.6.0
650 @option{-autotoss*} option runs tosser not after the call, but every
651 second while it is active.
654 @option{autotoss}, @option{autotoss-doseen},
655 @option{autotoss-nofile}, @option{autotoss-nofreq},
656 @option{autotoss-noexec}, @option{autotoss-notrns} options available in
657 @option{calls} configuration section. You can configure per-call
658 automatic tosser options.
661 Use vendoring, instead of @env{$GOPATH} overriding during tarball
662 installation, because current minimal Go's version is 1.12 and it
668 @section Release 5.5.1
672 Respect for @env{$BINDIR}, @env{$INFODIR} and @env{$DOCDIR} environment
673 variables in @file{config} during installation.
678 @section Release 5.5.0
682 Bugfixes in @command{nncp-call(er)}/@command{nncp-daemon},
683 @command{nncp-bundle} and @command{nncp-stat}.
686 @command{nncp-rm} has @option{-dryrun} and @option{-older} options now.
689 @command{nncp-exec} has @option{-use-tmp} and @option{-nocompress}
690 options now. Uncompressed packets are not compatible with previous NNCP
694 @command{nncp-call}, @command{nncp-caller} and @command{nncp-daemon} commands
695 have @option{-autotoss*} options for running tosser after call is ended.
698 Updated dependencies. Minimal required Go version is 1.12.
703 @section Release 5.4.1
707 Fixed @code{SENDMAIL} variable usage during the build.
712 @section Release 5.4.0
716 Updated dependencies.
719 Build system is moved from Makefiles to @url{http://cr.yp.to/redo.html, redo}.
720 This should not influence package maintainers, because minimal @command{redo}
721 implementation is included in tarball.
726 @section Release 5.3.3
730 More various error checks.
733 Updated dependencies.
738 @section Release 5.3.2
742 Fixed incorrect logic of @option{onlinedeadline} timeout, where
743 connection won't take into account incoming packets events and will
744 forcefully disconnect.
749 @section Release 5.3.1
753 Fixed @option{onlinedeadline} workability with call addresses that use
754 external commands (@verb{#"|somecmd"#}).
757 @command{nncp-stat} has @option{-pkt} option displaying information
758 about each packet in the spool.
763 @section Release 5.3.0
767 Progress messages contain prefix, describing the running action.
770 Fixed not occurring handshake messages padding.
773 Finish all SP protocol related goroutines, less memory leak.
776 SP protocol generates less socket write calls, thus generating less TCP
780 Check @option{onlinedeadline} and @option{maxonlinetime} options every
781 second, independently from socket reads (up to 10 seconds).
784 Once per minute, if no other traffic exists, PING packets are sent in
785 SP-connection. That allows faster determining of connection unworkability.
788 @command{nncp-toss} uses lock-file to prevent simultaneous tossing.
793 @section Release 5.2.1
797 Fixed SP protocol error handling, sometimes causing program panic.
802 @section Release 5.2.0
806 Most commands by default show oneline operations progress.
807 @option{-progress}, @option{-noprogress} command line options,
808 @option{noprogress} configuration file option appeared.
811 Fixed incorrect @command{nncp-check} command return code, that returned
812 bad code when everything is good.
815 Free disk space check during @command{nncp-bundle -rx} call.
820 @section Release 5.1.2
824 @strong{Critical} vulnerability: remote peers authentication could lead
825 to incorrect identification of remote side, allowing foreign encrypted
829 Bugfix: private and public Noise keys were swapped in newly created
830 configuration files, that lead to inability to authenticate online peers.
833 Explicit directories @code{fsync}-ing for guaranteed files renaming.
838 @section Release 5.1.1
842 Fixed workability of @command{nncp-file} with @option{-chunked 0} option.
847 @section Release 5.1.0
851 @command{nncp-file} can send directories, automatically creating pax
855 Free disk space is checked during outbound packets creation.
858 @option{freq}, @option{freqminsize}, @option{freqchunked} configuration
859 file options replaced with the structure:
860 @option{freq: @{path: @dots{}, minsize: @dots{}, chunked: @dots{}@}}.
863 Added @option{freq.maxsize} configuration file option, forbidding of
864 freq sending larger than specified size.
867 Ability to notify about successfully executed commands (exec) with
868 @option{notify.exec} configuration file option.
873 @section Release 5.0.0
877 @strong{Incompatible} configuration file format change: YAML is
878 replaced with Hjson, due to its simplicity, without noticeable lack
879 of either functionality or convenience.
882 @strong{Incompatible} plain packet format changes. Older versions are
883 not supported. @code{zlib} compression is replaced with
884 @code{Zstandard}, due to its speed and efficiency, despite library
885 version is not mature enough.
888 Ability to call remote nodes via pipe call of external command, not only
892 @command{nncp-cfgnew} generates configuration file with many
893 comments. @option{-nocomments} option can be used for an old
897 Duplicate filenames have @file{.CTR} suffix, instead of @file{CTR}, to
898 avoid possible collisions with @file{.nncp.chunkCTR}.
901 Ability to override process umask through configuration file option.
904 Files and directories are created with 666/777 permissions by default,
905 allowing control with @command{umask}.
908 Updated dependencies.
911 Full usage of go modules for dependencies management
912 (@code{go.cypherpunks.ru/nncp/v5} namespace is used).
915 Forbid any later GNU GPL version autousage
916 (project's licence now is GNU GPLv3-only).
923 @item Workability on GNU/Linux systems and Go 1.10 is fixed.
931 @strong{Incompatible} encrypted and eblob packet format change: AEAD
932 encryption mode with 128 KiB blocks is used now, because previously
933 @command{nncp-toss} did not verify encrypted packet's MAC before feeding
934 decrypted data to external command. Older versions are not supported.
937 Available free space checking before copying in @command{nncp-xfer},
938 @command{nncp-daemon}, @command{nncp-call(er)}.
941 @command{nncp-call} has ability only to list packets on remote node,
942 without their transmission.
945 @command{nncp-call} has ability to transfer only specified packets.
948 Workability of @option{xxrate} preference in @option{calls}
949 configuration file section.
952 Dependant libraries are updated.
958 Begin using of @code{go.mod} subsystem.
965 @item @command{nncp-daemon} can be run as @command{inetd}-service.
973 @command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller} check
974 if @file{.seen} exists and treat it like file was already downloaded.
975 Possibly it was transferred out-of-bound and remote side needs to be
979 If higher priority packet is spooled, then @command{nncp-daemon} will
980 queue its sending first, interrupting lower priority transmissions.
983 Simple packet rate limiter added to online-related tools
984 (@command{nncp-daemon}, @command{nncp-call}, @command{nncp-caller}).
987 Ability to specify niceness with symbolic notation:
988 @verb{|NORMAL|}, @verb{|BULK+10|}, @verb{|PRIORITY-5|}, etc.
991 Changed default niceness levels:
992 for @command{nncp-exec} from 64 to 96,
993 for @command{nncp-freq} from 64 to 160,
994 for @command{nncp-file} from 196 to 224.
1002 @strong{Incompatible} @emph{bundle} archive format changes and
1003 @command{nncp-bundle} workability with Go 1.10+. Bundles must be
1004 valid tar archives, but Go 1.9 made them invalid because of long paths
1005 inside. NNCP accidentally was dependant on that bug. Explicit adding of
1006 @file{NNCP/} directory in archive restores workability with valid tar
1011 @section Release 3.1
1014 Ability to disable relaying at all using @verb{|-via -|} command line option.
1018 @section Release 3.0
1022 @strong{Incompatible} plain packet format changes. Older versions are
1026 Ability to queue remote command execution, by configuring @option{exec}
1027 option in configuration file and using @command{nncp-exec} command:
1030 @command{nncp-mail} command is replaced with more flexible
1031 @command{nncp-exec}. Instead of @verb{|nncp-mail NODE RECIPIENT|}
1032 you must use @verb{|nncp-exec NODE sendmail RECIPIENT|}.
1034 @option{sendmail} configuration file option is replaced with
1035 @option{exec}. @code{sendmail: [@dots{}]} must be replaced with
1036 @code{exec: sendmail: [@dots{}]}.
1040 Ability to override @option{via} configuration option for destination
1041 node via @option{-via} command line option for following commands:
1042 @command{nncp-file}, @command{nncp-freq}, @command{nncp-exec}.
1045 Chunked files, having size less than specified chunk size, will be sent
1046 as an ordinary single file.
1049 Exec commands are invoked with additional @env{$NNCP_NICE} and
1050 @env{$NNCP_SELF} environment variables.
1053 Files, that are sent as a reply to freq, have niceness level taken from
1054 the freq packet. You can set desired niceness during @command{nncp-freq}
1055 invocation using @option{-replynice} option.
1058 @command{nncp-toss} command can ignore specified packet types during
1059 processing: @option{-nofile}, @option{-nofreq}, @option{-noexec},
1063 @command{nncp-file} command uses
1064 @option{FreqMinSize}/@option{FreqChunked} configuration file options
1065 for @option{-minsize}/@option{-chunked} by default. You can turn this
1066 off by specifying zero value.
1071 @section Release 2.0
1075 @strong{Incompatible} encrypted/eblob packet format changes. Older
1076 versions are not supported.
1079 Twofish encryption algorithm is replaced with ChaCha20. It is much more
1080 faster. One cryptographic primitive less.
1083 HKDF-BLAKE2b-256 KDF algorithm is replaced with BLAKE2Xb XOF. Yet
1084 another cryptographic primitive less (assuming that BLAKE2X is nearly
1085 identical to BLAKE2).
1090 @section Release 1.0
1094 @strong{Incompatible} encrypted packet format changes. Older versions
1098 @command{nncp-bundle} command can either create stream of encrypted
1099 packets, or digest it. It is useful when dealing with
1100 @code{stdin}/@code{stdout} based transmission methods (like writing to
1101 CD-ROM without intermediate prepared ISO image and working with tape
1105 @command{nncp-toss} is able to create @file{.seen} files preventing
1106 duplicate packets receiving.
1109 Single background checksum verifier worker is allowed in
1110 @command{nncp-call}. This is helpful when thousands of small inbound
1111 packets could create many goroutines.
1114 Ability to override path to spool directory and logfile through either
1115 command line argument, or environment variable.
1118 @command{nncp-rm} is able to delete outbound/inbound, @file{.seen},
1119 @file{.part}, @file{.lock} and temporary files.
1124 @section Release 0.12
1126 @item Sendmail command is called with @env{$NNCP_SENDER} environment variable.
1130 @section Release 0.11
1132 @item @command{nncp-stat}'s command output is sorted by node name.
1136 @section Release 0.10
1139 @command{nncp-freq}'s @file{DST} argument is optional now. Last
1140 @file{SRC} path's element will be used by default.
1144 @section Release 0.9
1147 Fix @option{-rx}/@option{-tx} arguments processing in
1148 @command{nncp-call} command. They were ignored.
1152 @section Release 0.8
1155 Little bugfix in @command{nncp-file} command, where @option{-minsize}
1156 option for unchunked transfer was not in KiBs, but in bytes.
1160 @section Release 0.7
1164 Ability to feed @command{nncp-file} from @code{stdin}, that uses an
1165 encrypted temporary file for that.
1168 Chunked files transmission appeared with corresponding
1169 @command{nncp-reass} command and @option{freqchunked} configuration file
1170 entry. Useful for transferring big files over small storage devices.
1173 @option{freqminsize} configuration file option, analogue to
1174 @option{-minsize} one.
1177 @command{nncp-xfer}'s @option{-force} option is renamed to
1178 @option{-mkdir} for clarity.
1181 @option{-minsize} option is specified in KiBs, not bytes, for
1185 @command{nncp-newcfg} command is renamed to @command{nncp-cfgnew},
1186 and @command{nncp-mincfg} to @command{nncp-cfgmin} -- now they have
1187 common prefix and are grouped together for convenience.
1190 @command{nncp-cfgenc} command appeared, allowing configuration file
1191 encryption/decryption, for keeping it safe without any either OpenPGP or
1192 similar tools usage.
1195 Cryptographic libraries (dependencies) are updated.
1200 @section Release 0.6
1202 @item Small @command{nncp-rm} command appeared.
1203 @item Cryptographic libraries (dependencies) are updated.
1207 @section Release 0.5
1210 Trivial small fix in default niceness level of @command{nncp-file}
1211 and @command{nncp-freq} commands.
1215 @section Release 0.4
1219 Small fix in @command{nncp-call}, @command{nncp-caller},
1220 @command{nncp-daemon}: they can segmentation fail sometimes (no data is
1224 @command{nncp-newnode} renamed to @command{nncp-newcfg} -- it is shorter
1225 and more convenient to use.
1228 @command{nncp-mincfg} command appeared: helper allowing to create
1229 minimalistic stripped down configuration file without private keys, that
1230 is useful during @command{nncp-xfer} usage.
1235 @section Release 0.3
1237 @item Fixed compatibility with Go 1.6.
1241 @section Release 0.2
1245 @strong{Incompatible} packet's format change (magic number is changed
1246 too): size field is encrypted and is not send in plaintext anymore.
1249 @option{-minsize} option gives ability to automatically pad outgoing
1250 packets to specified minimal size.
1253 @command{nncp-daemon} and @command{nncp-call}/@command{nncp-caller}
1254 always check new @emph{tx} packets appearance in the background while
1255 connected. Remote side is immediately notified.
1258 @option{-onlinedeadline} option gives ability to configure timeout of
1259 inactivity of online connection, when it could be disconnected. It could
1260 be used to keep connection alive for a long time.
1263 @option{-maxonlinetime} option gives ability to set maximal allowable
1264 online connection aliveness time.
1267 @command{nncp-caller} command appeared: cron-ed TCP daemon caller.
1270 @command{nncp-pkt} command can decompress the data.