Latest release summary

Field Value
Software cwRsync server
Latest release cwRsync server 6.14.0
Release date 2026-10-05

Latest release components

component name component version component license
Rsync 3.5.1 Rsync license (GPL)
cwRsync Server Admin GUI 1.0.3 Itefix EULA
Cygwin 3.6.10 Cygwin license (GPL/LGPL)
OpenSSL 3.5.7 OpenSSL license
cwRsync server 6.14.0 Itefix EULA

Changelog history

2026-10-05 cwRsync server 6.14.0

  • Rsync 3.5.1

2026-08-14 cwRsync server 6.13.0 (security)

  • Rsync 3.5.0
  • Admin GUI 1.0.3

2026-07-27 cwRsync server 6.12.1

  • OpenSSL 3.5.7
  • Cygwin 3.6.10

2026-06-08 cwRsync server 6.12.0

  • Rsync 3.4.4

2026-05-20 cwRsync server 6.11.0 (security)

  • Rsync 3.4.3

2026-05-17 cwRsync server 6.10.0 (security)

  • Rsync 3.4.2

2026-04-27 cwRsync server 6.9.7

  • OpenSSL 3.5.6
  • Cygwin 3.6.9

2026-02-04 cwRsync server 6.9.6 (security)

  • openssl 3.0.19 (security)
  • cygwin 3.6.6

2025-09-08 cwRsync server 6.9.5

  • All binaries are digitally signed with our Windows code signing certificate.

2025-07-23 cwRsync server 6.9.4

  • Cygwin 3.6.4
  • OpenSSL 3.0.17

2025-06-28 cwRsync server 6.9.3

  • Updated GNU tools
  • Cygwin 3.6.3

2025-03-15 cwRsync server 6.9.2

  • Admin GUI 1.0.1: sets ‘use chroot’/‘strict modes’ to false as global default

2025-02-02 cwRsync server 6.9.1

  • Cygwin 3.5.7
  • Update GNU tools

2025-01-16 cwRsync server 6.9.0 (security)

2025-01-12 cwRsync server 6.8.3

  • Remove tcpip service dependency for IPv6 only installations
  • Cygwin 3.5.5

2024-09-21 cwRsync server 6.8.2

  • Cygwin 3.5.4
  • OpenSSL 3.0.15

2024-07-03 cwRsync server 6.8.1

  • Rsync 3.3.0
  • Cygwin 3.5.3
  • Use OpenSSL instead of LibreSSL

2024-04-09 cwRsync server 6.8.0

  • Rsync 3.3.0
  • Cygwin 3.4.10
  • LibreSSL 3.9.1

2023-09-08 cwRsync server 6.7.4

  • Cygwin 3.4.9

2023-06-19 cwRsync server 6.7.3

  • Cygwin 3.4.7
  • LibreSSL 3.7.3

2023-03-29 cwRsync server 6.7.2

  • Fix - Installer finish page - Auto run doesn’t work
  • New - Installer finish page - Option to create shortcut at desktop

2023-02-12 cwRsync server 6.7.1

  • Service run by LOCAL SERVICE instead of LOCAL SYSTEM reducing vulnerability footprint,
  • Cygwin 3.4.5

2022-10-24 cwRsync server 6.7.0

  • Rsync 3.2.7, –version output:

2022-09-13 cwRsync server 6.6.0

  • Rsync 3.2.6

2022-08-15 cwRsync server 6.5.0 (security)

  • Rsync 3.2.5 (Security)

2022-06-26 cwRsync server 6.4.1

  • Cygwin 3.3.5

2022-04-20 cwRsync server 6.4.0

  • Rsync 3.2.4
  • Cygwin 3.3.4

2022-01-04 cwRsync server 6.3.2

  • Cygwin 3.3.3

2021-11-17 cwRsync server 6.3.1

  • Cygwin 3.3.x ( 3.3.0 , 3.3.1 , 3.3.2 )

2021-09-16 cwRsync server 6.3.0

  • cwRsync Server Admin GUI - You can now manage your rsync server via GUI.

2021-05-04 cwRsync server 6.2.1

  • Cygwin 3.2.0

2020-09-26 cwRsync server 6.2.0

  • Rsync 3.2.3
  • Cygwin 3.1.7

2020-07-14 cwRsync server 6.1.0

  • Version 6.1.0 of cwRsync server installer contain the latest available rsync ( Changelog ). Client version is now provided as free .

2010-09-10 cwRsync server 4.0.6

  • Update notification.

cwRsync history (before June 2020)

2020-02-22 cwRsync 6.0.1

  • Version 6.0.1 of cwRsync client/server installers contain the latest available Cygwin/GNU tools. OpenSSH binaries are also updated to version 8.2p with LibreSSL 3.0.2.

2019-08-28 cwRsync 6.0.0

  • Version 6.0.0 is a cwRsync server focused release, in where we have upgraded Cygwin DLL to the latest 3.x version. Thanks to major changes in Cygwin, cwRsync server doesn’t need a dedicated service account any longer and is run by the local system account. A direct upgrade to version 6.0.0 is not supported for the server: You need to uninstall it and install the new one as a fresh installation.

2019-07-02 cwRsync 5.7.4

  • Version 5.7.4 is a cwRsync client focused release, in where we have upgraded OpenSSH to 8.0p, LibreSSL to 2.9.1 and Cygwin DLL to 2.11.1. Installers with 32-bit binaries are not provided any longer as a part of our product. Our installers require now entering an Itefix key during the installation. Please contact us if you don’t have such a key.

2018-10-30 cwRsync 5.7.3

  • Version 5.7.3 of cwRsync client/server installers come with updated ssh (OpenSSh 7.9p, cygwin and other tools. The server installer offers now a 36-char complex password consisting of upper- and lowercase letters and digits. You need to provide of your own password if that complexity doesn’t meet your system requirements.

2018-05-15 cwRsync 5.7.2

  • Version 5.7.2 of cwRsync client/server installers come with an updated cygwin1.dll (2.10.1 - 20180214), which fixes a newly introduced bug causing files with temporary flag on being not visible for synchronization. See here for more information.

2018-04-11 cwRsync 5.7.1

  • Version 5.7.1 of cwRsync client/server installers contain the latest available Cygwin/GNU tools. OpenSSH binaries are also updated to version 7.7p with LibreSSL 2.7.2.

2018-01-30 cwRsync 5.7.0 (security)

  • Version 5.7.0 of cwRsync client/server installers contain Rsync 3.1.3 including some security fixes .

2017-10-05 cwRsync 5.6.0

  • Version 5.6.0 of cwRsync client/server installers is a maintenance release and come with the latest available versions of Cygwin, GNU Tools, OpenSSH and Putty. LibreSSL is now used as the SSL library for OpenSSH binaries.

2017-03-28 cwRsync 5.5.3

  • Version 5.5.3 of cwRsync client/server installers is a maintenance release and come with the latest available versions of Cygwin, GNU Tools, OpenSSH and OpenSSL.

2016-05-01 cwRsync 5.5.1

  • Version 5.5.1 of cwRsync client/server installers contain the latest available Cygwin DLL and GNU tools.

2015-12-27 cwRsync 5.5.0 (security)

  • Version 5.5.0 of cwRsync client/server installers and the free archive contain the latest available rsync ( 3.1.2 ), including a security fix for a transfer from a sender that you don’t fully trust. We have also updated OpenSSL with security fixes (1.0.2e), some other GNU tools and the sample batch file cwrsync.cmd for client connections, solving HOME directory related problems.

2015-11-15 cwRsync 5.4.5

  • Version 5.4.5 of cwRsync installers contains the latest available Cygwin DLL (2.3.1) and more effective installation logic without dependency on external utilities. See version page for more details. Our server installers create service accounts with stronger passwords (from 14 to 24 chars), and you will now get the option to remove the service account during uninstallation. Problems around Windows paths in the HOME env.variable when invoking from a non-Cygwin environment, should also be solved as the regarding official patch is now undone.

2015-09-09 cwRsync 5.4.4

  • Version 5.4.4 of cwRsync installers come with newer versions of Cygwin, OpenSSH and OpenSSL. See version page for more details.

2015-02-12 cwRsync 5.4.2

  • Version 5.4.2 of cwRsync installers come with newer versions of Cygwin and OpenSSL. We have also updated plink and puttygen to their latest available versions. See version page for more details.

2014-10-16 cwRsync 5.4.1

  • cwRsync 5.4.1 installers and the free edition are updated with the latest versions of Cygwin (1.7.32), tools, OpenSSH (6.7p) and OpenSSL (1.0.1i).

2014-06-24 cwRsync 5.4.0

  • cwRsync 5.4.0 installers contain the latest Rsync 3.1.1. It reintroduces socketpairs again in Cygwin setup as an attempt for better performance. We have also updated OpenSSL to 1.0.1h. Changelog for Rsync 3.1.1

2014-04-18 cwRsync 5.3.0

  • Fixed a failure to remove the partial-transfer temp file when interrupted (and rsync is not saving the partial files).
  • Changed the chown/group/xattr-set order to avoid losing some security-related xattr info (that would get cleared by a chown).
  • Fixed a bug in the early daemon protocol where a timeout failed to be honored (e.g. if the remote side fails to send us the initial protocol greeting).
  • Fixed unintended inclusion of commas in file numbers in the daemon log.
  • We once again send the ‘f’ sub-flag (of -e) to the server side so it knows that we can handle incremental-recursion directory errors properly in older protocols.
  • Fixed an issue with too-aggressive keep-alive messages causing a problem for older rsync versions early in the transfer.
  • Fixed an incorrect message about backup-directory-creation when using –dry-run and the backup dir is not an absolute path.
  • Fixed a bug where a failed deletion might not affect the exit code.
  • Fixed a bug that caused a failure when combining –delete-missing-args with –xattrs and/or –acls.
  • Fixed an itemize bug that affected the combo of –link-dest, -X, and -n.
  • Fixed a problem with delete messages not appearing in the log file when the user didn’t use –verbose.Improve chunked xattr reading for OS X.
  • Removed an attempted hard-link xattr optimization that was causing a transfer failure. (If you need to interact with an rsync 3.1.0 using –hard-links & –xattrs, you can specify –protocol=30.)
  • We now generate a better error if the buffer overflows in do_mknod().Fixed a problem reading more than 16 ACLs on some OSes.
  • Switched Cygwin back to using socketpair “pipes” to try to speed it up.
  • Added knowledge of a few new options to rrsync.
  • Added the support/rsync-no-vanished wrapper script.
  • Made configure more prominently mention when we failed to find yodl (in case the user wants to be able to generate manpages from *.yo files).

2014-01-13 cwRsync 5.2.2

  • Both client and server installers are updated with the newest Cygwin binaries (1.7.27). Client installers are also updated with OpenSSH 6.4, and creates also the etc/fstab file to avoid problems with permissions . In addition, cwRsync client GUI can now handle long running rsync tasks better and more stable. You can also stop an ongoing rsync operation without terminating the GUI.

2013-10-07 cwRsync with Rsync 3.1.0

  • Both 32-bit and 64-bit cwRsync client and server installers are updated with Rsync 3.1.0 which has become a mature solution after more than two years of existence. In addition, installers have the most recent versions of OpenSSH and Cygwin.

2013-08-02 cwRsync

  • 64-bit support.
  • cwRsync client and server installers are delivered in two flavours supporting both 32-bit (x86) and 64-bit (x64) architectures.

2013-02-13 Copssh Server 4.4.2 and cwRsync 5.0.4

  • OpenSSL security updates and updated tools.
  • Copssh 4.4.2 and cwRsync 5.0.4 contain OpenSSL 1.0.1e with security updates for SSL, TLS and DTLS Plaintext Recovery Attack (CVE-2013-0169), TLS 1.1 and 1.2 AES-NI crash (CVE-2012-2686), OCSP invalid key DoS issue (CVE-2013-0166). We have also updated the Cygwin DLL and other tools to their latest versions.

2012-07-30 cwRsync 5.0.2

  • Includes many updates.
  • Cwrsync 5.0.2 has an rsync binary with two additional patches: the official ignore-case patch and an unofficial patch removing permissions checks on the password file . In addition, the installers have updated versions of OpenSSH (6.0), OpenSSL(1.0.1c) and Cygwin (1.7.15). The Server installer is now made UAC-aware, requiring admin privileges for proper installation on Vista or later. Rsyncd.conf sample contains uid=0 and gid=0 directives for error-free operation.

2012-02-10 cwRsync 5.0.1

  • Updated Rsync GUI and OpenSSL security patches.
  • Version 5.0.1 contains a client installer with an updated Rsync GUI . In addition, both client and server installers are updated with OpenSSL security patches 0.9.8s and 0.9.8t . .

2012-01-15 cwRsync 5.0.0

  • Rsync client GUI.
  • cwRsync - Rsync client and server for Windows Version 5.0.0 - January 2012 1. NEW - Cwrsync client GUI Cwrsync has now its own rsync client GUI with following features: - Specify sources and destination (local, remote ssh and daemon modes) - Specify filters and a subset of options - Create rsync command according to your specification - Run rsync on the fly both in production and test mode - Create batch files for task scheduling - Save and load your favorite rsync settings as profiles - Language localization cwrsync-gui-slideshow-1 cwrsync-gui-slideshow-2 cwrsync-gui-slideshow-3 cwrsync-gui-slideshow-4 cwrsync-gui-slideshow-5 cwrsync-gui-slideshow-6 cwrsync-gui-slideshow-7 cwrsync-gui-slideshow-8 cwrsync-gui-slideshow-9 cwrsync-gui-slideshow-10 2. UPDATED - OpenSSH 5.9-p1 See http://openssh.com/txt/release-5.9 for more details. 3. UPDATED - OpenSSL 0.9.8s (security patches) See http://openssl.org/news/secadv_20120104.txt for more details

2011-09-28 cwRsync 4.2.0

2011-04-04 cwRsync 4.1.0

2010-08-26 cwRsync 4.0.5

2010-03-25 cwRsync 4.0.4 (security)

  • Includes Cygwin 1.7.2, OpenSSH 5.4 and OpenSSL 0.9.8n.
  • CHANGES FROM VERSION 4.0.3 1. UPDATED - Cygwin 1.7.2-2 Major changes from 1.7.1-1: o Localization support has been much improved. o Enhanced Windows console support. o Handle native DOS paths always as if mounted with “posix=0,noacl”. o Handle UNC paths starting with slashes identical to /cygdrive paths. o Avoid overly agressive appending of .exe suffix when renaming Windows executables. o Fix some hangs and a potential crash using pipes and FIFOs. o Fix multiple socket problems: See http://cygwin.com/ml/cygwin-announce/2010-03/msg00018.html for more detailed info. 2. UPDATED - OpenSSH 5.4 Major changes from 5.3: * SSH protocol 1 is disabled by default. * add support for PKCS#11 tokens. * Add support for certificate authentication of users and hosts * Add the ability to revoke keys in sshd(8) and ssh(1). * Add a ‘read-only’ mode to sftp-server(8) * Many improvements to the sftp(1) client See https://www.openssh.org/txt/release-5.4 for more detailed info. 3. UPDATED - OpenSSL 0.9.8n Major changes from 0.9.8m: o a security and bugfix release which addresses CVE-2010-0740 URL for this Security Advisory: https://openssl-library.org/news/secadv/20100324.txt See openssl directory in doc directory for more detailed info

2010-03-01 cwRsync 4.0.3 patch 100

  • Rsync without socketpairs.
  • This patch contains an rsync 3.0.7 executable for Cygwin with socketpairs turned off (Pipes are used instead). There are some threads on the net showing that implementation of socketpairs on cygwin 1.7 may be error-prone.

2010-01-04 cwRsync 4.0.3

  • Update notification.
  • Includes Rsync 3.0.7 and Cygwin 1.7.1.

2009-11-27 cwRsync 4.0.2

  • Update notification.
  • Updated versions of Cygwin and OpenSSL.

2009-10-12 cwRsync 4.0.1

  • Update notification.
  • A bugfix release.

2009-10-08 cwRsync 4.0.0

  • Update notification.
  • Includes Cygwin 1.7 and OpenSSH 5.3.

2009-05-14 Copssh Server 2.1.1 and cwRsync 3.1.0

  • New updates.
  • cwRsync VERSION 3.1.0 - May 2009 highlights (see changelog for more info) - Rsync 3.0.6 - OpenSSL 0.9.8k security update - Installer with improved uninstallation copSSH VERSION 2.1.1 - May 2009 highlights (see changelog for more info) - OpenSSL 0.9.8k security update cwRsyncRelease Name: 3.1.0 Notes: cwRsync VERSION 3.1.0 - May 2009 highlights (see changelog for more info) - Rsync 3.0.6 - OpenSSL 0.9.8k security update - Installer with improved uninstallation 848b5d3c9f96d3b *cwrsync-3.1.0_update_100.zip Changes: cwRsync - Rsync client and server for Windows Version 3.1.0 - May 2009 CHANGES FROM VERSION 3.0.1 GENERAL 1. UPDATED - Rsync 3.0.6 A bugfix release. See http://rsync.samba.org/ftp/rsync/src/rsync-3.0.6-NEWS 2. UPDATED - OpenSSL 0.9.8k Three moderate severity security issues. See http://www.openssl.org/news/secadv_20090325.txt 3. UPDATED - Update 100 package Rsync 3.0.6 with transliteration and time-limit patches SERVER 4. UPDATED - Installer Better clean-up during uninstallation copSSHRelease Name: 2.1.1 Notes: copSSH VERSION 2.1.1 - May 2009 highlights (see changelog for more info) - OpenSSL 0.9.8k security update Changes: COPSSH - A yet another SSH Server & Client for Windows Version 2.1.1 - May 2009 CHANGES FROM VERSION 2.1.0 1. UPDATED - OpenSSL 0.9.8k Three moderate severity security issues. See http://www.openssl.org/news/secadv_20090325.txt

2009-05-14 cwRsync 3.1.0

  • Update notification: Rsync 3.0.6 and more.

2009-01-18 cwRsync 3.0.1

  • More mature, secure and silent.
  • cwRsync - Rsync client and server for Windows Version 3.0.1 - January 2009 CHANGES FROM VERSION 3.0.0 GENERAL 1. UPDATED - OpenSSL 0.9.8j OpenSSL Security Advisory [07-Jan-2009] : https://openssl-library.org/news/secadv/20090107.txt 2. SAME - Update 100 package Rsync 3.0.5 with transliteration and time-limit patches SERVER 3. UPDATED - Installer Bug-fix - silent installation support. Following silent scenarios are available now: switch ‘/S’ - install with default credentials created by the installer switch ‘/S /u=user /p=password’ - install with user-specified credentials Minor improvements including better support for version checks CLIENT 4. UPDATED - chmod.exe

2008-12-29 cwRsync 3.0.0

  • Includes Rsync 3.0.5 and ICW technology.
  • cwRsync - Rsync client and server for Windows Version 3.0.0 - December 2008 ** NB! cwRsync Server 3.x IS NOT COMPATIBLE WITH EARLIER VERSIONS ** CHANGES FROM VERSION 2.1.5 GENERAL 1. UPDATED - Rsync 3.0.5 See http://rsync.samba.org/ftp/rsync/src/rsync-3.0.5-NEWS for more information. This is a yet another bug-fix release. UNC-paths in the configuration file is now supported: Allow a path with a leading “//” to be preserved (CYGWIN only) 2. UPDATED - Update package 100 Rsync 3.0.5 with transliteration and time-limit patches SERVER 1. NEW - ICW technology ICW technology allows you to have multiple cygwin-based solutions by using a single base, as recommended by Cygwin. cwRsync server is now implemented as a repackaging of ICW Base and ICW RsyncServer packages. You can extend your installation by additional ICW packages like openssh, rbldnsd and so on. Every attempt has been made to assure that those fundamental changes will be transparent to end users. cwRsyncServer will function as before. 2. NEW - Ability to specify your own service account cwRsyncServer installer has been extended to support user-defined service accounts. Existing accounts and domain accounts are also supported. As before, it is also possible to accept suggested values by the installer. 3. REMOVED - OpenSSH server For OpenSSH Server functionality, you can now install copssh 2.x or newer before cwRsyncServer.

2008-09-07 Cwrsync 2.1.5

  • Cwrsync 2.1.5 includes rsync 3.0.4 , which is primarily a bug-fix release. The only enhancement is the adding of a way to interact with an overly-restrictive server that refuses rsync’s behind-the-scenes use of the -e option. Notes: cwRsync VERSION 2.1.5 - September 2008 highlights (see changelog for more info) - plain Rsync 3.0.4 - Update package 100 with time-limit and transliteration patches Changes: cwRsync - Rsync client and server for Windows Version 2.1.5 - September 2008 CHANGES FROM VERSION 2.1.4 GENERAL 1. UPDATED - Rsync 3.0.4 See http://rsync.samba.org/ftp/rsync/src/rsync-3.0.4-NEWS for more information A bug-fix release with the only enhancement being the adding of a way to interact with an overly-restrictive server that refuses rsync’s behind-the-scenes use of the -e option.

2008-08-19 Experimental Cwrsync updates with Cygwin 1.7.0

  • Windows 95, 98 and Me are not supported anymore. The new DLL will not run on any of these systems.
  • Mount points are no longer stored in the registry. Use /etc/fstab and /etc/fstab.d/$USER instead. Mount points created with mount(1) are only local to the current session and disappear when the last Cygwin process in the session exits.
  • PATH_MAX is now 4096. Internally, path names can be as long as the underlying OS can handle (32K).
  • UTF-8 filenames are supported now. So far, this requires to set the environment variable CYGWIN to contain “codepage:utf8”, but this will likely disappear in a few weeks time. The setting of $LANG or $LC_CTYPE will be used instead.
  • The CYGWIN environment variable options “ntsec” and “smbntsec” have been replaced by the per-mount option “acl”/“noacl”.
  • Reworked pipe implementation which uses overlapped IO to create more reliable interruptible pipes and fifos.
  • Reworked pipe handling for better speed and better support for signal processing.
  • Fallout from the long path names: If the current working directory is longer than 260 bytes, or if the current working directory is a virtual path (like /proc, /cygdrive, //server), don’t call native Win32 programs since they don’t understand these paths.
  • On the first usage of a DOS path (C:foo, \foobar), the Cygwin DLL emits a scary warning that DOS paths shouldn’t be used. There’s also the new CYGWIN=nodosfilewarning setting to disable that.

2008-07-28 Cwrsync 2.1.4

  • Release 2.1.4 contains many updates including rsync 3.0.3, OpenSSH 5.1, OpenSSL 0.9.8h and Cygwin 1.5.25-15. Release Name: 2.1.4 Notes: cwRsync VERSION 2.1.4 - July 2008 highlights (see changelog for more info) - plain Rsync 3.0.3 - OpenSSH 5.1, OpenSSL 0.9.8h and cygwin 1.5.25-15 - Update package 100 with time-limit and transliteration patches Changes: cwRsync - Rsync client and server for Windows Version 2.1.4 - July 2008 CHANGES FROM VERSION 2.1.3 GENERAL 1. UPDATED - Rsync 3.0.3 See http://rsync.samba.org/ftp/rsync/OLDNEWS for more information Many bug fixes. 2. UPDATED - OpenSSH 5.1 More info at http://www.openssh.com/txt/release-5.1 Many enhancements and bug fixes. 3. UPDATED - OpenSSL 0.9.8h This release fixes two moderate security vulnerabilities which could result in a remote denial of service, CVE-2008-0891 and CVE-2008-1672. Please see http://www.openssl.org/news/secadv_20080528.txt More info at http://openssl.org/news/announce.html 4. UPDATED - Cygwin 1.5.25-15 More info at http://cygwin.com/ml/cygwin-announce/2008-06/msg00014.html CLIENT 5. NEW - cygpath tool SERVER 6. UPDATED - Many core tools

Unknown date cwRsync 5.4.3

  • Version 5.4.3 of cwRsync installers come with newer versions of Cygwin, OpenSSH and OpenSSL. See version page for more details.