Mono 1.1.17 Release

Mono was branched at version 1.1.13 to become the stable version of Mono that is distributed by Novell on its enterprise products. That series of releases are only getting bug fixes.

Before each release we run all of the regression tests on Mono, so we consider this release usable for deployment, but there are still a few changes in various areas.

All of the changes since 1.0 are documented in the following release notes: 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.10, 1.1.13, 1.1.14, 1.1.15 and 1.1.16.

This release is mostly a bug-fix release, there are very few new developments.

Changes since Mono 1.1.16


Basic world: The Mono Basic compiler and the Basic runtime have been removed from the Mono distribution. A new compiler that is compatible with Visual Basic 2005 and a matching runtime are now part of a separate distribution. On this particular release, we are offering the basic runtime, but the compiler is not able to run completely on Mono yet.

Windows.Forms: Printing is now supported.

This release is able to compile and build IronPython 1.0 RC2.

COM: Basic COM support has been integrated.

AOT: on x86/linux the AOT code generator no longer requires binutils to be installed, Mono now has a built-in executable writer [Paolo Molaro]

Inotify watcher

The FileSystem will now use inotify directly on systems that support it without having to go through an external library like FAM or Gamin, this should make our use of inotify reliable. [Gonzalo Paniagua]

Async Process Notification

2.0 support for asynchronous reads and writes from the Process class is now supported [Gonzalo].

Mono Loading as a Shared Library Works Again

This was a problem that mostly affected the OpenOffice plugin, which loaded Mono as a separate process, this is now fixed [Zoltan Varga]

Gtk# Split

As part of Gtk# becoming one of the supported language bindings in the Gnome platform and Tomboy, a Gtk#-based application, becoming part of the Gnome desktop, Gtk# has been split up into multiple packages, instead of a single one.

All the packages are available from our download site [Mike Kestner].


Mono.Cairo bindings now supports a DirectFB surface now [Alp Toker].


This release includes an upgraded Cairo stack (from 1.0 to 1.2) and allowed us to enable printing in System.Drawing and System.Windows.Forms.

The original work was done by Jordi Mas, the Cairo upgrade by Peter Bartok and the work was completed by Chris Toshok.

2.0 API updates

String.Normalize is included [Atsushi Enomoto]

ADO.NET 2.0 updates, included an implementation for SqlConnection.GetSchema (Nagappan).


Updated to the 2.0 API. [Miguel de Icaza]

Gert added support for splitting the registry across user and system level settings. [Gert Driesen]


Added support for X.509 client certificates. It's now possible to use System.Web.HttpClientCertificate with Apache. Certificate validation can be done by Apache, Mono or both (default). [Hubert Fongarnand, Sebastien Pouliot]


SN now accept password-protected PKCS#12/PFX files to strongname assemblies. This feature is enabled in both 1.x and 2.0 profiles [Sebastien Pouliot]


CodeDOM JScriptCodeProvider code JavaScript code is now included [Akiramei]

An EventLog implementation is available on both Unix and Windows, to use set the MONO_EVENTLOG_TYPE variable like this:

to a pathname where the events should be logged to [Atsuhi Enomoto, Gert Driesen]

COM Interop: Basic support for Runtime Callable Wrappers (RCWs). This allows users to use unmanaged components from managed code. [Jon Chambers]

Sqlite now exposes a Version property to detect which underlying database is available (2.x or 3.x) [Joshua Tauberer]

Mono.Posix now features an abstract Unix end point in addition to Unix End Points [Alp Toker].

XML Land

Fixed XmlSchemaSet and XmlSchemaCollection problem across multiple namespaces [Atsushi Enomoto]

Important Bug Fixes

Dynamic linking of Mono is now possible in applications that were using the TLS (open office) [Zoltan Varga].

Newly created AppDomains no longer inherit the list of loaded assemblies from the main domain. This has an important side-effect, to get XSP and mod_mono running, you must install the latest versions of it (released in this iteration), older versions will not work [Lluis Sánchez].

A number of missing pieces of System.IO.Ports have been implemented (ReadChar, ReadLine, BytesToRead, BytesToWrite, ReadTo, return USB tty devices) [Miguel de Icaza].

ASP.NET Cache will check file dependencies now (79002) [Gonzalo Paniagua]

Alpha Port

The beginning of a port to Linux/Alpha has been contributed to Mono, [Sergey Tikhonov]


Cilc, a tool to generate C wrappers for managed routines has been relicensed from the GPL to the MIT X11 [Alp Toker]


Updated the Posgress data bindings to RC3 [Francisco Figueiredo].

Bugs fixed

The following bugs were fixed on this release:
79016 Mono Develop general Building projects: System.NullReferenceException
78784 Class Libraries CORLIB DateTime.Now, ToLocalTime and ToUniversalTime doesn't set Kind property
78810 Class Libraries Sys.Data Crash with DataRelations
78842 Class Libraries Sys.Data Element added twice to XML file
78888 Class Libraries System Async connects never connect
78837 Class Libraries Winforms Toolbar backcolor, size and buttons improper
78869 Class Libraries Winforms Version is reported incorrectly on purpose by Application.ProductVersion.
78871 Class Libraries Winforms Setting Splitter.SplitPosition does not have any effect
78855 Class Libraries CORLIB SRE TypeBuilder.CreateType() does not emit custom attributes on properties
78856 Class Libraries CORLIB System.Char.ConvertFromUtf32 is missing
78859 Class Libraries CORLIB ConstructorBuilder.GetILGenerator always creates a new ILGenerator
79000 Class Libraries CORLIB [PATCH] Memleak & Performance issue with deserialization of mulit-dimensional arrays
79007 Class Libraries CORLIB Char.TryParse not implemented
79023 Class Libraries CORLIB Type.InvokeMember does not accept (BindingFlags.SetField | BindingFlags.SetProperty)
79030 Class Libraries CORLIB System.Security.Principal.GenericPrincipal not serializable between Mono and MS.NET
78253 Class Libraries CORLIB IronPython and System.Reflection.Emit problem
78468 Class Libraries CORLIB [PATCH] ArgumentException in Assembly.GetManifestResourceStream for assembly loaded from byte array
78943 Class Libraries CORLIB Activator.CreateInstance should throw ArgumentException on open generic types (CLR via C#, chapter 16, example 3: invalid IL generated crash)
79118 Class Libraries CORLIB FileIOPermission.UnionKeys only considers first entry of list
78886 Class Libraries libgdiplus loading of particular tiff image fails
77820 Class Libraries Mono.Cecil Cecil 0.3 throws an incorrect exception when trying to load an assembly.
78901 Class Libraries Mono.Security X509Crl can not load empty CRL without extensions
78939 Class Libraries Sys.Drawing. [Patch] Interop difference from MS.Net
77551 Class Libraries Sys.Web [2.0] Make TreeView support *NodeStyle-ImageUrl attributes
78288 Class Libraries Sys.Web [2.0] Implement GetPostBackOptions, PostBackOptions defaults and server Paging
78328 Class Libraries Sys.Web [2.0] PagerSettings fix for numeric style pager generation
78646 Class Libraries Sys.Web IsPostback returns true during AJAX call with .Net and false with Mono
78730 Class Libraries Sys.Web Session is not available without context (when using ajaxpro)
78970 Class Libraries Sys.Web [2.0] Support for nullable types in TemplateControlCompiler
78971 Class Libraries Sys.Web [ASP.NET 2.0] PageThemeCompiler generates incorrect skin code
77539 Class Libraries Sys.Web [PATCH] Relative client paths
78968 Class Libraries Sys.Web [MS compat] MS.NET FontInfo class renders text-decoration: none
79112 Class Libraries Sys.Web HttpListenerRequest.InputStream.Read blocks indefinitively
78220 Class Libraries Sys.XML XmlSchema compilation fails for extension with base type in aother namespace
77489 Class Libraries Sys.XML XmlSchemaSet Compile Problem
79019 Class Libraries Sys.XML Unable to use WriteBinHex method
78696 Class Libraries System SoapReader fails to deserialize some method calls
78731 Class Libraries System make run-test failures on cygwin
78724 Class Libraries System Assembly.GetTypes(bool) broken on Dynamic Assemblies
78799 Class Libraries System Missing operator == on Uri class
79033 Class Libraries System ReadOnlyCollectionBase.Count should not be sealed.
78986 Class Libraries System [PATCH] X509Certificate2 sometimes does not return RawData
79028 Class Libraries System ArgumentException using X509Certificate2 ctors that take password
78945 Class Libraries System.Security Scrollwheel doesn't work on ComboBox
75555 Class Libraries VB Runtime Not fully implemented the Microsoft.VisualBasic namespace
78271 Class Libraries Winforms Scrolling fast causes control location to shift
78399 Class Libraries Winforms [PATCH] PageSetupDialog incorrectly expects yard-pound units everywhere
78483 Class Libraries Winforms toolbar text not shown underneath
78513 Class Libraries Winforms TextBox scrollbars behavior
78525 Class Libraries Winforms [PATCH] ToolBar does not reflect current selection or the first item when it got focus.
78607 Class Libraries Winforms [PATCH] CheckBox and RadioButton does not show focus
78661 Class Libraries Winforms TextBoxBase: text is hidden under scrollbars
78732 Class Libraries Winforms too many mousemove events
78737 Class Libraries Winforms Form.BringToFront not working
78753 Class Libraries Winforms When Form is TopMost, MessageBox is under the Form
78759 Class Libraries Winforms ImageListStreamer fails to load image resources
78761 Class Libraries Winforms ListView doesn't set Font properly
78773 Class Libraries Winforms TextBoxBase: TextChanged event isn't fired when it's set by first time and gets a String.Empty value
78804 Class Libraries Winforms [Patch]: Form.Controls.Clear() doesn't work
78806 Class Libraries Winforms Setting TextBox.SelectionStart causes NullReferenceException
78813 Class Libraries Winforms ListBox: Items are not sorted with Sorted=true
78821 Class Libraries Winforms Databound TextBox crashes
78822 Class Libraries Winforms Textbox bound to Typed DataSet crashes
78825 Class Libraries Winforms [Windows] Setting Control.Visible = true affects it's Position
78854 Class Libraries Winforms ListControl: DataSource should accept null value
78866 Class Libraries Winforms FormStartPosition.Manual doesn't work on Linux
78889 Class Libraries Winforms Changing Font of a MultiLine TextBox changes it's Height
78907 Class Libraries Winforms [Windows] Changing Visual Style Crashes MWF
78912 Class Libraries Winforms [2.0] [PATCH] Cannot modify KeyChar in a KeyPress event handler
79001 Class Libraries Winforms [Patch]: NumericUpDown: Value proeprty should be equal to Minimum property when created
79052 Class Libraries Winforms nunit-gui: TextBoxWriter tests fail in nunit.uikit.tests.dll 2.2.8
79053 Class Libraries Winforms nunit-gui: alt+R doesn't run tests
79076 Class Libraries Winforms InvalidOperationException adding items to sorted ListView
79095 Class Libraries Winforms Crash when setting TextBox.SelectionStart in a KeyPress event
79096 Class Libraries Winforms Throws System.InvalidOperationException in simple GUI app
76449 Class Libraries CORLIB Custommarshalers compile error
79037 Class Libraries Sys.Data System.Transactions.IPromotableSinglePhaseNotification should not include a Promote member, but should derive from ITransactionPromoter, a new interface
78746 Class Libraries Sys.Web Button OnClick not called
79002 Class Libraries Sys.Web Cache Dependency does not working
79020 Class Libraries Sys.Web [PATCH] TextBox does not render name attribute if you do not specify ID property
79085 Class Libraries Sys.XML stack overflow on recursive entity definition
79091 Class Libraries Sys.XML another XML document can not be loaded
79090 Class Libraries Sys.XML regression: xml document can not be loaded
78985 Class Libraries Sys.XML XML Schema key constraints
76453 Class Libraries VB Runtime exception at class field assignment with automatic conversion
78190 Class Libraries Winforms PropertyGrid boolean popup bug.
78291 Class Libraries Winforms TextBox: Del key shouldn't fire a KeyPress event
78800 Class Libraries Winforms TextBoxes don't fire the Click event.
78864 Class Libraries Winforms ToolBar problems after recent changes
78865 Class Libraries Winforms CreateParams gets called multiple times for a Control or Form
78868 Class Libraries Winforms Scroll bars not displayed on UserControl when Size smaller than AutoScrollMinSize
78914 Class Libraries Winforms Deactivating a menubar item requires mouse move to pop up submenu
78927 Class Libraries Winforms DataGrid: edit text boxes don't disappear when you scroll
78929 Class Libraries Winforms DataGrid: swf-datagrid.exe "Properties table navigation" sample crashes with a NRE
78931 Class Libraries Winforms Reflector doesn't work anymore (ScrollBar AE)
79080 Class Libraries Winforms r63769 breaks PDN
78323 Class Libraries Winforms [PATCH] TextBox cursor doesn't get moved if you resize a TextBox to the correct position
70506 Compilers C# Exception from mcs when output assembly name has no extension
78860 Compilers C# case null immediately following another case is always matched
79056 Compilers C# Unexpected compilation error
77403 Compilers C# Fix RootContext.Tree.Types to be a partial class
78770 Compilers C# lock(null) causes output to reference the "msc" assembly
79067 Compilers C# [GMCS] parser error for pointer type used as type argument
77396 Compilers C# [GMCS] type lookup after #77403 is fixed
78384 Compilers C# CSharpCodeProvider ignores CompilerParameters.EmbeddedResources
79026 Compilers C# mcs reuses loc.0 for two different things within same expression
77963 Compilers C# [GMCS] NRE on class X : Y<X.Z> - derived class of a generic type whose generic argument is its nested child class
30235 Compilers C# MCS crashes with correct code.
78899 Compilers C# C# compiler should use unsigned arithmetic and should support overflow check on pointers
79012 Compilers C# sigsev while executing code: iRaiseItemChangedEvents could not be loaded
79064 Compilers C# gmcs can't compile Ironpython 1.0 RC2
78949 Runtime io-layer ** WARNING **: CreateThread: error creating thread handle
78877 Runtime GC [PATCH] Can't assign to WeakReference.Target
79117 Runtime interop [PATCH] Marshal.StringToHGlobalAuto & PtrToStringAuto not working as expected
79084 Runtime io-layer socket-io.c and UnixEndPoint have broken assumptions
78775 Runtime JIT Mono run with -v -v always uses the same temp files and doesn't clean them up when done
78816 Runtime JIT [gmcs] Generating invalid IL code
78826 Runtime JIT [verifier] Mono 1.1.16 crashes on valid tailcall code
78827 Runtime JIT mono -aot  uses vast amounts of memory
78969 Runtime JIT Windows: Accessing an at least 3 dimensional array about 130000 times causes a StackOverflowException
79087 Runtime JIT Right shift of UInt64 incorrect for certain values
78767 Runtime JIT can't load libmono as a module
79010 Runtime JIT Problem with using a generic function from an interface implemented by structure
76757 Runtime misc new AppDomains inherit current loaded assemblies
79150 Runtime misc Runtime crashes on GetTypeCode for System.TypedReference
79125 Runtime misc Crash with explicit interface implementation;  VB.NET generated code
78990 Runtime JIT DNS Class Fails
79027 Runtime JIT Call to a vararg method with no variables arg incorrectly generated
78592 Runtime misc ExactBinding is igonred by Type.GetMethod
78972 Runtime misc Vararg method in external dll not found when invoked with no variable args
45730 Runtime misc mono --debug prints wrong line numbers for exception backtrace
78703 Runtime misc String constructors that take sbyte* should use Encoding.Default rather than UTF-8 and Latin-1
77340 Mono: Tools tools Local user can overwrite arbitrary file using mono-service
78977 Mono: Tools tools Unhandled Exception in the sn tool

Installing Mono 1.1.17

	$ ./configure --prefix=/devel

You can then setup your PATH to include /devel/bin to access the Mono 1.1. Alternatively you can replace your Mono installation with 1.1.17

Binary Packages and Source Code Downloads:

Source code and pre-compiled packages for SUSE, SLES, Fedora Core 3, 4, RHEL, MacOS and Windows in a variety of platforms available from our web site from the download section.

Quick source code installation:

If we have no packages for your platform, installing from source code is very simple.


    $ tar xzf mono-1.1.17.tar.gz
    $ cd mono-1.1.17
    $ ./configure
    $ make
    $ make install

Then compile libgdiplus:

    $ tar xzf libgdiplus-1.1.17.tar.gz
    $ cd libgdiplus-1.1.17
    $ ./configure
    $ make
    $ make install


The following is a partial list of contributors to the 1.1.17 release of Mono, if your name is missing, please contact us.

Aaron Bockover, Akiramei, Alexander Larsson, Alexander Olk, Alois Bělaška, Alp Toker, Andrew Skiba, Ankit Jain, Atsushi Enomoto, Boris Kirzner, Brian Crowell, Carlos Alberto Cortez, César Octavio López Natarén, Chris Toshok, Dean Brettle, Dick Porter, Duncan Mak, Eduardo Garcia Cebollero, Eyal Alalouf, Francisco Figueiredo Jr., Gert Driesen, Gonzalo Paniagua Javier, Gustavo Giraldez, Guy Cohen, Hagit Yidov, Igor Zelmanovich, Jackson Harper, Jarosław Pawlak, Joachim Ante, John Luke, Jonathan Chambers, Jonathan Pobst, Jonathan Pryor, Joshua Tauberer, Juraj Skripsky, Konstantin Triger, Kornél Pál, Lluis Sanchez Gual, Lluis Sanchez Gual, Marek Habersack, Marek Safar, Marek Sieradzki, Martin Baulig, Matt Hargett, Merav Sudri, Miguel de Icaza, Mike Kestner, Nagappan A, Paolo Molaro, Peter Dennis Bartok, Peter Dettman, Petri Latvala, Rafael Mizrahi, Raja R Harinath, Robert Jordan, Roberto Costa, Sebastien Pouliot, Sebastien Robitaille, Senganal T, Sergey Tikhonov, Sudharsan V, Thong Nguyen, Vladimir Krasnov, Wade Berrier, Yoni Klain, and Zoltan Varga