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Version 4.92 released

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Posted by Nick Gammon   Australia  (21,674 posts)  [Biography] bio   Forum Administrator
Date Sun 20 Apr 2014 02:20 AM (UTC)

I am pleased to release version 4.92 of MUSHclient. See the release notes for more details.


  • Fixed bug in WindowRectOp where doing a flood-fill to a line, or of a surface, would not let you specify a fill colour.
  • If loading a world file fails due to some problem in the XML format, the offending line number is now reported.
  • Fixed bug where if you set a custom world title with SetTitle, and then saved the world file, the custom title would revert back to the default title.
  • Fixed bug where if the server sent IAC DO NAWS then the client would turn NAWS on, even though it did not respond IAC WILL NAWS.
  • Added option to log Lua scripting errors to a log file.
  • Added option to omit the date from "world" files when saving them.
  • Added check in program initialization that the the global preferences file "mushclient_prefs.sqlite" is writable. If not, the program exits.
  • Updated PCRE (regular expression) library from 8.33 to 8.35.
  • Updated SQLite3 (database) library from to


You can view the release notes for version 4.92

You can download MUSHclient 4.92 now from ...

You are strongly advised to backup (make a copy of) your existing MUSHclient world files before upgrading. Just in case.

If there are any problems, please post messages to the Bug Reports, Suggestions, or General parts of this forum.

MD5 sum for the installer

If you do an md5sum on mushclient492.exe you should get this result:


The forum post a small script to sumcheck the MUSHclient download shows how you can write a small script in MUSHclient to do the sumcheck. It also lists some places you can download md5sum.exe to do the sumcheck (if this is the first time you have downloaded MUSHclient).

One way of doing an md5sum is to download the Installer_sumcheck plugin from the Plugins page (RH click that link and "save link as" to get the plugin). Then install the plugin (see the File menu -> Plugins) and type "md5sum" which lets you browse to the installer file, load it, and display the sumcheck.

Message about "Failed to load resources file"

Some users are reporting getting a message like "Failed to load resources file: C:\Programme\MUSHclient\locale\DE.dll - trying English file" when starting MUSHclient (the DE.dll part might be another language like FR.dll).

This will be because you have customized the "locale" of MUSHclient to other than EN (English). See the How to localize MUSHclient messages into other languages forum posting for more details about localization.

To fix this, find the directory you installed MUSHclient into (eg. "C:\Program Files\MUSHclient\") and then locate the subdirectory "locale". In that you will find a file en.dll. Copy or rename that file to match the missing file in the message (eg. copy en.dll to de.dll).

Alternative suggestion: Go into the File menu -> Global Preferences -> General, and change the field "Locale code" back to "EN" (English) and then it should look for EN.DLL next time.

Warning about Lua 5.1 upgrade (September 2006)

MUSHclient version 3.80 upgraded the Lua script engine from Lua 5.0.2 to 5.1.1. If you are upgrading to this version from an earlier version than 3.80, you should read Version 3.80 released - with Lua 5.1 script engine - this post has recommendations about what is required if you use Lua scripting or Lua plugins. Note: Since version 3.80 was released, the version of Lua has been upgraded. It is currently 5.1.4. Some versions (versions 4.49 to 4.52 of MUSHclient) may incorrectly report they are using Lua 5.1.1 when you open a world.

Warning about upgrading from versions prior to 3.21 (May 2002)

MUSHclient version 3.85 (onwards) no longer reads the old "binary" world files produced by versions prior to 3.21. For more information about this please read the forum post Versions 3.85 onwards no longer support world files created prior to version 3.21 - this post has recommendations about how to upgrade your world files if you are upgrading from a version earlier than 3.21.

Note that version 3.21 was released quite a few years ago (May 2002), so people who have recently installed MUSHclient should not have any problems.

Source code

The source code for this version is available from GitHub:


You can directly download the source from the Downloads page (http://github.com/nickgammon/mushclient/downloads), or preferably install Git and use the appropriate commands to clone or pull the source. For some suggestions about getting the source from Git see MUSHclient source being made available on GitHub forum posting.

If you install Git, subsequent downloads (of new versions) will be much faster as it only needs to download the changes, not the whole source. Also by using Git you can find out exactly what has changed from version to the next.

Summary of changes in this version

$ git --no-pager diff v4.91..v4.92 --stat

 MUSHclient.cpp                    |   10 +++++
 MUSHclient.rc                     |   10 ++--
 doc.cpp                           |    7 +++-
 doc.h                             |   10 ++++-
 doc_construct.cpp                 |    2 +
 generate_documentation.lua        |    6 +-
 how_to_release.txt                |    7 +--
 install/readme.txt                |    5 +-
 miniwindow.cpp                    |   25 +++++++++---
 pcre/config.h                     |   12 ++++-
 pcre/readme.txt                   |    4 +-
 plugins/Config_Option_Changer.xml |    2 +
 scripting/lua_scripting.cpp       |   74 ++++++++++++++++++++++++++++--------
 scripting/scripting.cpp           |   42 ++++++++++++++++++++-
 scriptingoptions.cpp              |    4 +-
 sqlite3/readme.txt                |    3 +-
 telnet_phases.cpp                 |   10 +++-
 xml/xml_load_world.cpp            |    5 ++-
 xml/xml_save_world.cpp            |   14 ++++--
 19 files changed, 194 insertions(+), 58 deletions(-)


Commit log (date order)

$ git --no-pager log --pretty=oneline --reverse --abbrev-commit v4.91..v4.92

bb31246 Changed version number to 4.92
e19605c Fixed WindowRectOp bug doing flood fills
cf98163 Cosmetic fixes to WindowResize
1a731fc If loading a world file fails, report the problem
70e578c Fixed bug where custom title disappears on world save
f0890e2 Fixed problem with NAWS where the client would always send NAWS data if requested
3abbb94 Added option 'log_script_errors' for logging script errors
480dbbb Added option 'omit_date_from_save_files'
de7c9d6 Added omit_date_from_save_files to Config_Option_Changer plugin
da7e6b1 Added check that preferences file is not read-only
1454db7 Updated PCRE library from 8.33 to 8.35
898f489 Updated SQLite3 library from to
3c165dc Final changes before release

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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