Xamarin.iOS 9.4 introduces support for iOS 9.2 and Xcode 7.2. This is not a large update from Apple so it's very close to our 9.2.x series

.## Important Notes

Due to non-backwards compatible changes in Xcode 7 toolchain this version of Xamarin.iOS is only supported when used with Xcode 7 or later. This indirectly means the oldest version of iOS that applications can be directly deployed (on devices) is iOS 6.

Support for iOS 9.2 and Xcode 7.2.

• [insights] iOS apps fails to connect to debugger when Xamarin.Insights is enabled. In Forms templates, Xamarin.Insights is enabled by default [ #34885 ]

The 9.4.2 is a service release including the following changes:### Bug fixes

• [msbuild] Archiving for Publishing generates wrong value for CloudKit entitlement preventing distribution [ #36189 ]
• [jit] Fix the support for gshared types in mini_emit_initobj [ #37079 ]
• [generator] Be more defensive when converting pointers to CMSampleBuffers [ #37187 ]
• [llvm] Disable support for nested clauses, it still doesn't work. Fixes #37273 [ #37273 ] [9.4.2.27+]
• [jit] Fix the reference type detection for Volatile:Read/Write [ #37846 ] [9.4.2.27+]

The 9.4.1 release replace the, short-lived 9.2.2 service release. It's identical to the previous one but includes the iOS 9.2 API update and Xcode 7.2 support.

The following document contains a complete list of the API changes from 9.4.0 to 9.4.1

.### Bug fixes

• [profiler] Create a static version of libmono-profiler-log which doesn't link against eglib [ #29745 ]
• [msbuild] Make sure to touch the Watch App binary during a build [ #34205 ]
• [registrar] Properly handle Selector and Class return values in the static registrar [ #34440 ]
• [mtouch] Fix background fetch (Xcode change) [ #34552 ]
• [linker] Fix generics usage inside custom attributes [ #34609 ]
• [coregraphics] Fix CGDataProvider to not free GCHandles before the native code is done with the corresponding data [ #34633 ]
• [msbuild] Fix Error reading framework definition '/Library/Frameworks/Mono.framework/External/xbuild-frameworks/Xamarin.TVOS/v1.0' [ #35510 ]
• [mtouch] Set a max number of simultaneous strippers and AOT compilers [ #35786 ]
• [btouch] Fix possible AmbiguousMatchException when finding properties [ #35837 ]
• [arm64] Fix passing of vtypes by ref [ #35959 ]
• [msbuild] Default IpaIncludeArtwork to False [ #36238 ]
• [runtime] Don't set the BLOCK_HAS_DESCRIPTOR flag for blocks [ #36317 ]
• [msbuild] Find the correct architecture for device specific builds
• [msbuild] msbuild does not pass the float32 option to mtouch
• [mscorlib] Invalid DateTime format for Norway, Serbia and Finland cultures [ #36003 ] (9.4.1.12+)
• [System.Runtime.Serialization] Static serializer changed to avoid Nullable value-types #36100 ] (9.4.1.12+)
• [aot] Cache inflated methods loaded from aot images to avoid repeating an expensive search [ #36256 ] (9.4.1.12+)
• [gsharedvt] async / await - custom awaiter crashing on device [ #36383 ][ #36676 ] (9.4.1.12+)
• [System.Xml] Fix endless recursion in XmlCompiledTransform [ #36436 ] (9.4.1.12+)
• [aot] MethodInfo.MakeGenericMethod(...).Invoke causes "Attempting to JIT compile method" exception [ #36566 ] (9.4.1.12+)
• [aot] Make sure ptr-to-structure and structure-and-ptr wrappers are unique [ #20186 ] (9.4.1.23+)
• [aot] Don't hardcode the nursery size in aot write barriers [ #35414 ] (9.4.1.23+)
• [mono] Fix float32 support for native type operations [ #36125 ] (9.4.1.23+)
• [msbuild] Include com.apple.developer.icloud-container-environment in the whitelist [ #36189 ] (9.4.1.23+)
• [jit] Avoid a verification error in gsharedvt code with ldarga + gshared types [ #36292 ] (9.4.1.23+)
• XmlObjectSerialier: fix ISerializable for XmlObjectSerializer, DataContractSerializer... [ #37171 ] (9.4.1.23+)
• [uikit] NSTextLayoutOrientationProvider.LayoutOrientation is a readonly property [ #37405 ] (9.4.1.23+)
• [msbuild] Missing resources (storyboards, nibs...) inside .app [ #38206 ] (9.4.1.25+)

This 9.4.x release includes all the fixes from the latest 9.2 stable release along with support for the final releases of iOS 9.2 and Xcode 7.2.

The following document contains a complete list of the API changes from 9.2.1 to 9.4.0

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