See also this page @ref{Новости, on russian}.
+@node Release 5.3.2
+@section Release 5.3.2
+@itemize
+
+@item
+Fixed incorrect logic of @option{onlinedeadline} timeout, where
+connection won't take into account incoming packets events and will
+forcefully disconnect.
+
+@end itemize
+
+@node Release 5.3.1
+@section Release 5.3.1
+@itemize
+
+@item
+Fixed @option{onlinedeadline} workability with call addresses that use
+external commands (@verb{#"|somecmd"#}).
+
+@item
+@command{nncp-stat} has @option{-pkt} option displaying information
+about each packet in the spool.
+
+@end itemize
+
+@node Release 5.3.0
+@section Release 5.3.0
+@itemize
+
+@item
+Progress messages contain prefix, describing the running action.
+
+@item
+Fixed not occurring handshake messages padding.
+
+@item
+Finish all SP protocol related goroutines, less memory leak.
+
+@item
+SP protocol generates less socket write calls, thus generating less TCP
+packets.
+
+@item
+Check @option{onlinedeadline} and @option{maxonlinetime} options every
+second, independently from socket reads (up to 10 seconds).
+
+@item
+Once per minute, if no other traffic exists, PING packets are sent in
+SP-connection. That allows faster determining of connection unworkability.
+
+@item
+@command{nncp-toss} uses lock-file to prevent simultaneous tossing.
+
+@end itemize
+
+@node Release 5.2.1
+@section Release 5.2.1
+@itemize
+
+@item
+Fixed SP protocol error handling, sometimes causing program panic.
+
+@end itemize
+
+@node Release 5.2.0
+@section Release 5.2.0
+@itemize
+
+@item
+Most commands by default show oneline operations progress.
+@option{-progress}, @option{-noprogress} command line options,
+@option{noprogress} configuration file option appeared.
+
+@item
+Fixed incorrect @command{nncp-check} command return code, that returned
+bad code when everything is good.
+
+@item
+Free disk space check during @command{nncp-bundle -rx} call.
+
+@end itemize
+
+@node Release 5.1.2
+@section Release 5.1.2
+@itemize
+
+@item
+@strong{Critical} vulnerability: remote peers authentication could lead
+to incorrect identification of remote side, allowing foreign encrypted
+packets downloading.
+
+@item
+Bugfix: private and public Noise keys were swapped in newly created
+configuration files, that lead to inability to authenticate online peers.
+
+@item
+Explicit directories fsync-ing for guaranteed files renaming.
+
+@end itemize
+
+@node Release 5.1.1
+@section Release 5.1.1
+@itemize
+
+@item
+Fixed workability of @command{nncp-file} with @option{-chunked 0} option.
+
+@end itemize
+
+@node Release 5.1.0
+@section Release 5.1.0
+@itemize
+
+@item
+@command{nncp-file} can send directories, automatically creating pax
+archive on the fly.
+
+@item
+Free disk space is checked during outbound packets creation.
+
+@item
+@option{freq}, @option{freqminsize}, @option{freqchunked} configuration
+file options replaced with the structure:
+@option{freq: @{path: ..., minsize: ..., chunked: ...@}}.
+
+@item
+Added @option{freq.maxsize} configuration file option, forbidding of
+freq sending larger than specified size.
+
+@item
+Ability to notify about successfully executed commands (exec) with
+@option{notify.exec} configuration file option.
+
+@end itemize
+
@node Release 5.0.0
@section Release 5.0.0
@itemize
@code{Zstandard}, due to its speed and efficiency, despite library
version is not mature enough.
+@item
+Ability to call remote nodes via pipe call of external command, not only
+through TCP.
+
@item
@command{nncp-cfgnew} generates configuration file with many
comments. @option{-nocomments} option can be used for an old
Duplicate filenames have @file{.CTR} suffix, instead of @file{CTR}, to
avoid possible collisions with @file{.nncp.chunkCTR}.
+@item
+Ability to override process umask through configuration file option.
+
@item
Files and directories are created with 666/777 permissions by default,
allowing control with @command{umask}.