The GC bridge got a lot of performance work. There are now two new modes that can significantly improve some workloads.
Add System.ServiceModel.Security assembly. Fixes #20108
[sdb] Avoid clearning event requests if they reference an assembly which is unloaded. Instead, remove the assembly reference from the event request so it stays active. Fixes #19924.
[mcs] Fix betterness logic for default vs params parameters. Fixes #19754
[mcs] Flow analysis of binary expressions not using logical operators. Fixes #20086
[mcs] Emit unmanaged version info from AssemblyFileVersion. Fixes #20057
[mcs] Fix expression tree conversion type for lifted enum equality comparisons. Fixes #19938
[mcs] Report error when named argument for param parameter is given but not all formal parameters are provided. Fixes #19878
[mcs] Unify reachable label lookup. Fixes #19887
[mcs] Don't release field address copy before it's used. Fixes #20040
[mcs] Fix error reporting propagation for loop statements. Fixes #20034
Rename configure.in -> configure.ac. Based on PR #976.
[System] Fix parsing of IPv6 addresses (bug #18574)
[mcs] Emit better code for null coalescing operator with nullable return type. Fixes #19702
[mcs] Add explicit array conversion involving type parameters. Fixes #18474
[Http]: Cleanup chained async operations; bug #19161.
[runtime] Clean up an #ifdef block.
[corlib] Add Guid hex format parsing with whitespaces. Fixes #19915
[System.Net.Http] Parsing productinfo like headers with missing version. Fixes #19881
[System] Throw IOE in more cases when dealing with an invalid Process object. Fixes #19864
[MWF] Fix opacity of form (#19856)
[MWF] Fix ComboBox list to not display offscreen (#15462)
[MWF] Fix Screen.FromRectangle (#8271)
[MWF] Implement multi-display support on Linux (Fixes #325669)
[runtime] Fix decoding of jagged arrays in custom attributes. Fixes #19825.
[MWF] Don't try to remove non-child control (#19818)
[MWF] Add unit test for #19818
[runtime] Avoid calling mono_thread_current () in sgen_thread_detach (), since it can construct objects. Fixes #19755.
[runtime] Avoid passing commands to lldb using the python api, it doesn't seem to work well in script files. Fixes #19732.
[runtime] Fix Process.TotalProcessorTime becoming negative. Fixes #19739.
[bcl] Fix Process.PrivateMemorySize64 on osx, we now return task_baic_info.resident_size. Fixes #19738.
Clean up the usage of FILETIME structures, avoid accessing them as gint64 since that would lead to alignment problems. Hopefully fixes #19739.
[sdb] Avoid stack overflows when a boxed vtype recursively references itself using fields. Fixes #18914.
[profiler] Filter more event types in mprof-report based on time (more xambug #11904).
[profiler] In mprof-report fix handling of the time filter when starting from 0 (xambug #11904).
[http] Convert string output data using BOM header when available. Fixes #19667
[system.net.http] Fix encoding of Content-MD5. Based on patch by nberardi. Fixes #19644
[sdb] Avoid placing implicit sequence points at offsets where the IL stack is empty when using symbol file based sequence points. Fixes #13640.
[eglib] Remove test-glib code, we don't have to maintain compatibility with glib any more. Fixes #19638.
[mcs] Don't report interface implementation errors for optional implementations. Fixes #18030
[corlib] Rethrow user not initialization exception when lazy initialization throws. Fixes #19564
[mcs] Include more unicode categories in parsing identifier part character. Fixes #18229
[MWF] Clear currentCell before disposing (fixes #19567)
[MWF] Unit test for DataGridView bug (#19567)
[mcs] Emit null constant value for default parameters of generic types to indicate not missing value. Fixes #19033
[mcs] Do type parameter conversion involving type parameters using dependency rules. Fixes #18473
[dlr] Emit correct code for convert of nullable types. Fixes #19500
[mcs] Emit all method like members in same order as they appear in source code. Fixes #19509
[mcs] Convert extended underlying enum constants to their underlying type. Fixes #18866
[mcs] Don't apply reference type is optimization for dynamic expressions. Fixes #19423
[mcs] Inflate anonymymous method with correct type arguments when async this requires hoisting in parent type. Fixes #19176
[mcs] Fix using type relationship check for type parameters. Fixes #18639
[mcs] Caching of type argument types should not happen under error conditions. Fixes #18282
[linq] Use hashtable lookup instead of linear scan for groupby keys. Fixes #18673
[mcs] Private member can still have base members when in nested types. Fixes #19378
[mcs] Make unused event warning reporting consistent to csc. Fixes #19095
[mcs] Add parent storey reference only when this is not captured directly. Fixes #19077
[MWF] Fix AutoSize behavior of FlowLayoutPanel (#2912)
[corlib] Fix extra await context switch when custom SynchronizationContext does not change. Fixes #17878
[XML] Fix bug #9541 by Bart Verthé - do not reset document schema when reading an element.
[system] Don't terminate response reading on bad cookie value. Fixes #18868
Fixed xamarin #18898 # / novell #595899 DataRowView indexer should not break on "completed" added rows (any rows other than the IsNew one)
[corlib] Defer TypeInfo instantiation logic in DefinedTypes. Fixes #19082
[jit] Fix an unreachable code part in mini_emit_memset (). Fixes #19083.
[jit] Fix the lookup of the AOT version of Interlocked.Exchange<T> in full-aot mode. Fixes #19070.
[llvm] Fix a few problems with longs on 32 bit platforms. Fixes #18925.
[runtime] Improve the hashing of MONO_TYPE_VAR/MONO_TYPE_MVAR. Hopefully fixes #18880.
[Mono.Security] Send all the certificates (except the root) from an SSL/TLS 'Server certificate' message (7.4.2 in RFC2246). Fixes #16974
Revert "[runtime] Improve the hashing of MONO_TYPE_VAR/MONO_TYPE_MVAR. Hopefully fixes #18880."
[System.Core] Don't auto increment when trimming hashset. Fixes #18687
[system.net.http] Close service-point slot on explicit dispose. Fixes #18848
[interpreter] Disable fast call invocation using methodinfo delegates due to aot limitation. Fixes #18688
[runtime] Improve the hashing of MONO_TYPE_VAR/MONO_TYPE_MVAR. Hopefully fixes #18880.
[corlib] Add SortVersion. Fixes #18770
[jit] Make generic ctor calls made out of gsharedvt methods indirect, since they cannot be patched. Fixes #18634.
[corlib] Make invariant NumberFormatter thread static too as it has internal static state. Fixes #18599
[corlib] Filter out any right-to-left sign characters. Fixes #18522
[Fix] Bugzilla #18213 - System.Runtime.Caching.MemoryCache doesn't honor SlidingExpiration
[System.Xml.Linq] Fix XNamespace.GetName locking to not be racy. Fixes #18564.
[jit] Fix rethrowing of exceptions in thumb mode. Fixes #18448.
[mcs] Fix recursive resolving of crefs (#18511)
[mcs] Adding unit test for #18511
[System.Net.Http] Incomplete byte ranges parsing. Fixes #18494
[corlib] Optimize EqualityComparer for common value types. Fixes #18400
[mcs] Flow analysis of nested binary expressions inside anonymous methods was missing on left/right reset. Fixes #18417
[mcs] Emit field initializer with expression tree in all user constructors. Fixes #18308
[System.ServiceModel.Web] Fix JsonQueryStringConverter.ConvertValueToString to work when running on any culture [#18437]
[System.XML] Fix handling of space in XSL value-of elements (#18113)
[System.XML] Fix XSL node-set bug (#18114)
[System.XML] Fix handling of global variables in XSLs (#18118)
[Fix] Bugzilla #18235 - System.Runtime.Caching.MemoryCache doesn't order expirable items correctly.
[Fix] Bugzilla #18182 - ConcurrentQueue<T>.TryPeek() is not thread safe
[sgen] Restore hazard pointers in suspend signal handler. Fixes #15695.
[corlib] Fix localized resource loading bug (#14987)
[MWF] Fix crash from null control in ContainerControl (#10537)
[MWF] Fix TableLayoutPanel layout bug (#8907)
System/PCL: Implement HttpWebRequest.SupportsCookieContainer, WebRequest.CreateHttp; Fixes #18378
[bxc#18361] mdbrebase: use File.Move instead of FileInfo.MoveTo
[MWF] Fix clipping of last line of dropdown (#2462)
[MWF] Release capture when clicking LinkLabel (Fixes #2787)
[MWF] Fix text position on buttons (#463149)
[MWF] Fix crash when setting Row.Height (Fixes #2394)
[MWF] Unit test for Row.Height/MinimumHeight bug (#2394)
[interpreter] Implement simple quote expression. Fixes #18248
[MWF] Fix size of text area on message box (Fixes #2090)
Fix setter of TableLayoutPanel.LayoutSettings throws unwanted exception (Novell bug #497562)
Add unit test for Novell bug #497562
[Fix] Bugzilla #18245 - System.Runtime.MemoryCache.GetValues() throws LockRecursionException with expired items - GetValues() calls MemoryCacheContainer.GetEntry() which now gets an EnterUpgradeableReadLock needed by ExpireIfNeeded() - Added a test case
[MWF] Fix hang if clipboard source application closes down (fixes #674098)
[Printing] Improve reported printer settings (Fixes #602934)
[Printing] Add unit test for Novell bug #602934
[Sys.Data] Fix Novell Bug #519648
[Sys.Data] Add unit tests for Novell bug #519648
Mono 是一个由Novell 公司主持的项目。该项目的目标是创建一系列符合ECMA 标准（Ecma-334 和Ecma-335）的.NET 工具，包括C# 编译器和共通语言执行平台。与微软的.NET Framework 不同，Mono 项目不仅可以运行于Windows 系统上，还可以运行于Linux，FreeBSD，Unix，Mac OS X 和Solaris。
