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Bond project has ended

As of March 2025, the Bond open-source project has ended. There will be no further activity in this project: no new features, no bug fixes, and, importantly, no security fixes. See the README for more details.

The project's original changelog is below.

Bond Changelog

Notable changes--especially new features and breaking changes--are recorded here.

Bond's version numbers follow Semantic Versioning. Each release is tagged with a Git tag. The NuGet packages follow the Git tag versions. The Bond compiler (gbc) and compiler library have a slightly different versioning scheme, following the Haskell community's package versioning policy.

13.0.2: 2024-11-06

  • IDL core version: 3.0
  • C++ version: 13.0.1
  • C# NuGet version: 13.0.2
  • Java version: 13.0.1
  • gbc & compiler library: 0.13.0.0

Java

  • There were no Java changes in this release.

C++

  • There were no Java changes in this release.

C#

  • Fixed assembly versions in NuGet packages.

13.0.1: 2024-10-02

  • IDL core version: 3.0
  • C++ version: 13.0.1
  • C# NuGet version: 13.0.1
  • Java version: 13.0.1
  • gbc & compiler library: 0.13.0.0

Java

  • There were no Java changes in this release.

C++

  • InputBuffer throws a StreamException when trying to skip beyond the end of the stream. This mitigates a CPU DoS vulnerability.
  • Deserialization from JSON payloads will no longer process very deeply nested structures. Instead, a bond::CoreException will be thrown in order to protect against stack overflows. The depth limit may be changed by calling the function bond::SetDeserializeMaxDepth(uint32_t).
  • Breaking change: Protocols must now implement CanReadArray method and Buffers must implement CanRead method. These are used to perform checks that mitigate memory allocation vulnerabilities.
  • Breaking change: Custom containers must implement reset_list and list_insert. Standard implementations are provided. This API is used to incrementally fill containers of complex types when preallocation may be unsafe. Expected container size is provided in reset_list, where client code can perform sanity checks before any memory is allocated by Bond.
  • bond::CoreException is thrown when the payload has a greater declared size than the backing buffer.
  • Known issue: Debug builds with MSVC 14.0 (Visual Studio 2015) may fail at runtime if custom allocators for containers are used. Newer MSVC versions and other compilers are not affected, neither are Release builds with MSVC 14.0. This can be worked around by using newer MSVC version or building in Release configuration.
  • Added support for Boost 1.83.

C#

  • Fixed compatibility with .NET 9.

13.0

This version was allocated but never released.

12.0

This version was allocated but never released.

11.0.1: 2024-06-26

  • IDL core version: 3.0
  • C++ version: 11.0.1
  • C# NuGet version: 11.0.1
  • Java version: 11.0.1
  • gbc & compiler library: 0.13.0.0

gbc and Bond compiler library

C++

  • Breaking change: All Bond-over-gRPC code has been removed. This is everything under the bond::ext:grpc namespace. Service definitions can still appear in .bond files, but no C++ code will be generated for them. See issue #1131, Bond-over-gRPC will be deprecated February 2022, for the full announcement.
  • By default, deserialization will no longer process very deeply nested structures. Instead, an bond::CoreException will be thrown in order to protect against stack overflows. The depth limit may be changed by calling the function bond::SetDeserializeMaxDepth(uint32_t).
  • Fixed handling of large containers of invalid types that could cause excessive CPU use when deserializing some payloads.

C#

  • Breaking change: Update of Newtonsoft.Json library to version 13.3.0. (Issue #1156)

    This update fixes depth check in input JSON string (by default: 64). Depth check is necessary to prevent stack overflow issue with long payloads.

  • Breaking change: The minimum supported version of .NET Framework is 4.6.2. Support for .NET Framework 4.5 has been dropped.

  • Breaking change: All Bond-over-gRPC code has been removed. This is everything under the Bond.Grpc namespace and the Bond.Grpc.CSharp NuGet package. Service definitions can still appear in .bond files, but no C# code will be generated for them. See issue #1131, Bond-over-gRPC will be deprecated February 2022, for the full announcement.

  • Added codegen and deserialization support for container type aliases to use System.Collections.Immutable collections. (Pull request #1161)

  • By default, deserialization will no longer process very deeply nested structures. Instead, an InvalidOperationException will be thrown in order to protect against stack overflows. The depth limit may be changed by setting the property Bond.DeserializerControls.Active.MaxDepth.

Java

  • By default, deserialization will no longer process very deeply nested structures. Instead, a org.bondlib.InvalidBondDataException exception will be thrown in order to protect against stack overflows. The depth limit may be changed by calling the method org.bondlib.bond.DeserializerControls.setMaxDepth.

11.0.0

This version was allocated but never released.

10.0: 2022-03-07

  • IDL core version: 3.0
  • C++ version: 10.0
  • C# NuGet version: 10.0
  • gbc & compiler library: 0.12.1.0

C++

  • Breaking change: Bond-over-gRPC has been marked deprecated. Bond-over-gRPC will be removed in the next major version of Bond. See issue #1131, Bond-over-gRPC will be deprecated February 2022, for the full announcement.
    • The [[deprecated]] attribute has been added to the bond::ext::grpc namespace in every top-level Bond-over-gRPC++ header. This will cause compiler warnings/errors for uses of Bond-over-gRPC++ that you may need to handle.
  • Fixed multiple symbol definition for Win32Exception in grpc/win_thread_pool.h. (Issue #1129)
  • Add forward declaration for GenericWriteVariableUnsigned to fix "C3861: 'GenericWriteVariableUnsigned': identifier not found" when using custom streams that do not have their own implementation of WriteVariableUnsigned. (Issue #1115)
  • Fixed bond::DynamicParser that may not emit transform's OmittedField for compile-time schema and an omitted optional field in the payload. (Issue #1120)
  • Fixed missing include directives.
  • Removed bond::blob's unnecessary _content member, reducing its size by 1 pointer.
  • Added an ability to apply transform to a schema.
  • Added noexcept to bond::blob's non-throwing functions.

C#

  • Breaking change: Bond-over-gRPC code has been marked deprecated. Bond-over-gRPC will be removed in the next major version of Bond. See issue #1131, Bond-over-gRPC will be deprecated February 2022, for the full announcement.
    • The [Obsolete] attribute has been added to every public type in the Bond.Grpc assembly. This will cause compiler warnings/errors for uses of Bond-over-gRPC# that you may need to handle.
  • Added virtual method OutputBuffer.ResizeBuffer that can be overridden to use buffer allocators other than new byte[] (e.g. ArrayPool<byte>.Rent()). (Pull request #1128)
  • The error message emitted when duplicate .bond items are detected by the MSBuild codegen now correctly refers to $(EnableDefaultItems) as the switch that controls this behavior. (Issue #1110)

9.0.5: 2021-04-14

  • IDL core version: 3.0
  • C++ version: 9.0.5
  • C# NuGet version: 9.0.5
  • gbc & compiler library: 0.12.1.0

C++/Python

  • Added CMake variable BOND_FIND_GRPC to allow for external gRPC installations. The search for external GRPC installations is only done when BOND_ENABLE_GRPC is TRUE.
  • Removed use of deprecated std::ptr_fun in the Python library. (Issue #1080)

C#

  • Implicit codegen now excludes any .bond files in the project's output directories (e.g., bin/, obj/debug/netstandard1.0). This behavior matches the implicit compilation behavior for .cs files.

9.0.4: 2020-11-23

  • IDL core version: 3.0
  • C++ version: 9.0.4
  • C# NuGet version: 9.0.3
  • gbc & compiler library: 0.12.1.0

C++

  • Bond now uses the [[noreturn]] attribute to annotate functions that do not return. Previously, it used compiler-specific annotations.

C#

  • There were no C# changes in this release.

9.0.3: 2020-08-06

  • IDL core version: 3.0
  • C++ version: 9.0.2
  • C# NuGet version: 9.0.3
  • gbc & compiler library: 0.12.1.0

C++

  • There were no C++ changes in this release.

C#

  • Fixed a performance regression in OutputBuffer.Grow: it was incorrectly growing the buffer by one byte at a time instead of geometrically. (Issue #1065, Pull request #1066)

9.0.2: 2020-08-03

  • IDL core version: 3.0
  • C++ version: 9.0.2
  • C# NuGet version: 9.0.2
  • gbc & compiler library: 0.12.1.0

C++

  • gbc is now installed with 555 (r-xr-xr-x) permissions. (Issue #1062)

C#

  • Fixed a regression writing to non-seekable streams using CompactBinaryWriter. The fix in commit b0fd4a1 inadvertently added a call to Stream.Position in the Release configuration. This call is only intended to be made when Bond is built in the Debug configuration.

9.0.1: 2020-07-14

  • IDL core version: 3.0
  • C++ version: 9.0.1
  • C# NuGet version: 9.0.1
  • gbc & compiler library: 0.12.1.0

C++

  • The RapidJSON submodule now points to commit 8f4c021. This addresses some aliasing warnings in recent versions of Clang and GCC.

C#

  • Fixed MSB3105/CS2002 error about duplicate Compile items when a directory contains multiple .bond files and --gprc is in $BondOptions. (Issue #1050)
  • Fix handling of large container lengths that could cause an infinite loop when deserializing some payloads. This fix addresses CVE-2020-1469.

9.0: 2020-05-26

  • IDL core version: 3.0
  • C++ version: 9.0.0
  • C# NuGet version: 9.0.0
  • gbc & compiler library: 0.12.1.0

C++

  • Breaking change MSVC 2013 support has been removed. (Issue #851)
  • Breaking change bond/core/warning.h has been deleted. Since the 5.3.0 release, Bond hasn't needed global warning suppressions for any compiler except MSVC 2013. This file was only used for MSVC 2013, which is no longer a supported compiler.
  • Fixed MSVC warning for deprecation of std::result_of_t in /std:c++17. (Issue #1007)
  • Fixed MSVC warning C5208: unnamed class used in typedef name cannot declare members other than non-static data members, member enumerations, or member classes. (Issue #1027)
  • Fixed Boost 1.73 warning "The practice of declaring the Bind placeholders (_1, _2, ...) in the global namespace is deprecated." (Pull request #1036)

C#

  • Fixed creation of duplicate default constructor when defining an empty struct and using --preview-constructor-parameters. (Issue #963)
  • The .NET assemblies are now only Authenticode signed with SHA-2. Legacy Windows OS versions may need updates to work with SHA-2 signatures.

gbc and Bond compiler library

gbc & compiler library 0.12.0.1: 2019-11-21

  • IDL core version: 3.0
  • C++ version: 8.2.0
  • C# NuGet version: 8.2.0
  • gbc & compiler library: 0.12.0.1

There are no changes to code generation or the language projections.

Bond compiler library

  • Fixed Cabal packaging issues that prevented the publication of 0.12.0.0.

8.2.0: 2019-11-18

  • IDL core version: 3.0
  • C++ version: 8.2.0
  • C# NuGet version: 8.2.0
  • gbc & compiler library: 0.12.0.0

C++

  • gRPC v1.17.1 is now required to use Bond-over-gRPC.
  • Fixed an ambiguous HexDigit overload compilation error when compiling with some versions of GCC. (Pull request #954)
  • Fixed ambiguous call to maybe::operator== that breaks GCC 9 build. (Pull request #975)
  • Fixed MSVC warning C4296: "'<': expression is always false" in protocol.h. (Issue #981)

C#

  • Added .NET 4.6 target framework to Bond.IO.dll so that it can use MemoryStream.TryGetBuffer() when cloning streams like is done when targeting .NET Standard 1.3+.

Bond compiler library

  • Breaking change The bond compiler library (the Haskell library) and gbc have been switched to build with stackage snapshot lts-14.4. This snapshot uses megaparsec 7 and aeson 1.4.4, both of which had breaking changes that are reflected in the library, e.g., the parseBond signature has changed. There is no impact to users of the gbc command line tool or changes to C++ and C# code generation.

8.1.0: 2019-03-27

C++

  • There were no C++ changes in this release.

C#

  • Updated to gRPC v1.17.1.
  • Add a constructor that accepts a CallInvoker instance to the generated gRPC clients to support client-side interceptors. For more details about C# interceptors, see the proposal in the gRPC project. Issue #950

8.0.1: 2018-06-29

  • gbc & compiler library: 0.11.0.3
  • IDL core version: 3.0
  • C++ version: 8.0.1
  • C# NuGet version: 8.0

C++

  • Fixed a crash in bond::ext::grpc::server's destructor when invoked on a moved-from object instance.
  • Added move-assignment operator to bond::blob.
  • Added cmake variable BOND_FIND_RAPIDJSON to allow for external RapidJSON installations.

C#

  • There were no C# changes in this release.

C#

  • Fixed alias conversion issue for generic fields Issue #928.

8.0.0: 2018-05-30

  • gbc & compiler library: 0.11.0.0
  • IDL core version: 3.0
  • C++ version: 8.0
  • C# NuGet version: 8.0

gbc and Bond compiler library

  • Breaking change The deprecated Bond Comm functionality has been removed. This includes all gbc options related to Comm and the Comm codegen templates in the Haskell library. Issue #824
  • C++ codegen now properly generates move assignment operators. Previously, this was broken for some cases.
  • C++ codegen no longer generates checks for C++11, except for MSVC 2013 workarounds.
  • C++ codegen no longer generates data member initialization that invokes a constructor accepting Comparer for associative containers.
  • C++ codegen can now generate copy and move constructors with an allocator argument when a custom allocator is used and --alloc-ctors is passed to gbc.
  • C++ codegen can now generate type aliases that correspond to ones in IDL when the --type-aliases flag is passed to gbc.
  • C++ codegen can now use std::scoped_allocator_adaptor for strings and containers when a custom allocator is used and the --scoped-alloc flag is passed to gbc.
  • C++ codegen now generates lazily constructed enum name-to-value and value-to-name maps. Additionally, a user-defined map type can now be provided to GetNameToValueMap and GetValueToNameMap.
  • C++ codegen now applies the --export-attribute to the ToString, FromString, ToEnum and FromEnum functions.
  • Fixed a bug in C++ codegen that incorrectly applied the export attribute to generic gRPC services.
  • C++ codegen now generates an allocator_type typedef for a struct when the --allocator option is passed to gbc, instead of specializing std::uses_allocator.
  • import statements can now end with an optional semicolon.
  • File and directory paths on the command line, in response files, or in import statements can now use a mix of forward and backslashes. Issue #869
  • gbc is now Authenticode dual-signed with both SHA-1 and SHA-2.

C++

  • Breaking change The deprecated Bond Comm functionality has been removed. This includes all gbc options related to Comm and all Comm APIs and header files. Issue #824
  • Breaking change Only versions of Boost released in the past two years (1.61 and newer) are supported. Bond will likely continue to work with older versions, but it is no longer tested with anything older than 1.61. Test coverage for Boost versions 1.61–1.66 has been improved. Issue #771
  • Breaking change Constructors accepting a Comparer have been removed from the bond::maybe and bond::nullable types.
  • Breaking change The bond::is_blob and bond::is_nullable traits have been removed. The blob and nullable types are not customizable, so these where never needed or used. The related functionality provided by bond::get_list_sub_type_id remains.
  • Breaking change Removed a dangerous implicit conversion operator from bond::maybe<T> to const T&. To access a bond::maybe<T> value, use one of the bond::maybe<T>::value functions.
  • Breaking change The nested pointer, const_pointer, reference and const_reference typedefs have been removed from bond::nullable<T>.
  • Breaking change The Allocator (second) type parameter has be removed from bond::nullable<T> and now it is always deduced from T.
  • Breaking change The bond::capped_allocator and related types have been moved to the bond::ext namespace and the "bond/ext" include directory.
  • Breaking changes in Bond-over-gRPC (based on real-world use and feedback). Check the updated examples to see how to use the changed APIs.
    • The generated ClientCore and ServiceCore class templates and the Client and Service convenience typedefs have all been replaced with normal classes named Client and Service. The ThreadPool type parameter has been removed in favor of a simplified runtime representation of a Scheduler.
    • The Scheduler concept and the bond::ext::gRPC::thread_pool implementation now use operator() instead of a schedule() member function.
    • The bond::ext::gRPC::server_core class template and the bond::ext::gRPC::server convenience typedef have been replaced with the normal class bond::ext::gRPC::server.
    • The generated Client::Async* functions now accept the std::shared_ptr<grpc::ClientContext> argument as the last parameter instead of as the first. This makes is easier to omit this parameter when no context customization is needed.
    • The client callback now directly accepts bond::ext::gRPC::unary_call_result<Response> (drops the std::shared_ptr). Also the unary_call_result now exposes read-only getters rather than fields. This simplified the type that clients need to deal with.
    • The bond::ext::gRPC::wait_callback::arg_type has been removed.
    • The client_callback.h header file has been renamed to unary_call_result.h to align with its contents.
    • The bond::ext::gRPC::server_builder has been replaced by the bond::ext::gRPC::server::Start factory function which now returns a plain bond::ext::gRPC::server object and accepts service instances managed by std::unique_ptr. This properly models the lifetime requirements. Service implementations must now pass a Scheduler to the generated Service base class which is no longer default constructible.
    • The generated method reflection information no longer uses a redundant bonded<T> wrapper for input_type and result_type typedefs.
    • The bond::ext::gRPC::unary_call no longer requires bonded<T> wrapper for request type.
    • The bond::ext::gRPC::unary_call::FinishWithError has been renamed to Finish. Overloads that take a status can be used to signal an error.
    • The grpc::Status second argument has been removed from bond::ext::gRPC::unary_call::Finish. gRPC does not support sending a response with a non-OK status, so the payload was being droped anyway.
    • Fixed bond::ext::gRPC::unary_call, bond::ext::gRPC::shared_unary_call and bond::ext::gRPC::unary_call_result types to properly use void and bond::reflection::nothing instead of the bond::Void empty struct. Also removed unnecessary functions from unary_call and shared_unary_call for those cases when they are not applicable (e.g. Finish is not available when return type is nothing).
  • gRPC v1.12.0 is now required to use Bond-over-gRPC.
    • This version include a number of memory leak fixes that users of Bond-over-gRPC were encountering. Issue #810
    • This version include some Windows-specific performance improvements for loopback connections.
  • The bond::ext::gRPC::wait_callback has been deprecated in favor of additionally generated client functions that return std::future.
  • Fixed includes for gRPC services with events or parameterless methods. Issue #735
  • Fixed a bug which would read an unrelated struct's field(s) when deserializing a base struct. Issue #742
  • Fixed a bug in bond::MapTo<T>::Field that failed to pass the Protocols type parameter to bond::Apply.
  • Fixed a race condition when bond::ext::gRPC::io_manager::shutdown and bond::ext::gRPC::io_manager::wait are called concurrently.
  • Fixed a race condition during bond::ext::gRPC::unary_call destruction.
  • Fixed the broken move constructor of bond::bonded<T, Reader&>.
  • Fixed the move constructor of bond::value to actually move the underlying reader.
  • Added the bond::blob_prolong helper function that will return a bond::blob with a copied data if the original one does not own the memory.
  • The bond::OutputBuffer::GetBuffers now can accept arbitrary STL-like containers.
  • bond::maybe<T> has been overhauled.
    • Fixed a bug that default initialized an instance of T even when a maybe held nothing.
    • Added noexcept variants of bond::maybe<T>::value.
    • Added bond::maybe<T>::emplace to construct a maybe's value in place.
    • Added various rvalue-reference and allocator-aware constructors and assignment operators.
    • Added operator==(const bond::maybe<T>&, const T&) and operator==(const T&, const bond::maybe<T>&) to compare directly to instances of T.
  • Fixed an issue with the ToString, FromString, ToEnum and FromEnum functions that were previously not exported from a DLL when the --export-attribute option was passed to gbc. Issue #861
  • Fixed a bug in bond::nullable<T, Alloc> where it was not propagating an allocator to T when allocator_type was not explicitly defined.
  • Fixed a bug in bond::make_box where const T& was not handled correctly.
  • The use of bond::check_method has been replaced with less restricting expression SFINAE checks on supported compilers. Issue #896
  • Fixed a bug where bond::ext::gRPC::io_manager could cause a thread to join itself.
  • The preferred namespace for Bond-over-gRPC is now bond::ext::grpc. The previous namespace, bond::ext::gRPC, continues to work.
  • Added a Windows-specific implementation of a thread pool.

C#

  • Breaking change The deprecated Bond Comm functionality has been removed. This includes all gbc options related to Comm and all Comm APIs, assemblies, and NuGet packages. Issue #824
  • Breaking change The Bond.CSharp and Bond.Compiler.CSharp NuGet packages perform implicit codegen when the simplified .NET Core .csproj format is used. This breaking change does not affect projects using the classic .csproj format. Any .NET Core projects that encounter the build error "Duplicate BondCodegen items were included." and were explicitly listing BondCodegen items will either need to rely on implicit codegen or disable all implicit inclusion. To set per-item metadata, use the item update syntax. Issue #636
  • The C# attribute Bond.Attribute can now be applied to methods. This fixes broken codegen when attributes are used on service methods. Issue #617
  • Bond Attributes on service methods are now present on all the client overloads for the methods. Previously, just the "friendly" method had the attributes.
  • Grpc.Core v1.12.0 is now required to use Bond-over-gRPC.
    • This version include a number of memory leak fixes that users of Bond-over-gRPC were encountering. Issue #810
    • This version include some Windows-specific performance improvements for loopback connections.
  • BondCodegen items will now appear in the Visual Studio 2017+ UI in .NET Core projects.
  • The .NET Standard assemblies are fully strong-name signed. Previously, they were inadvertently only public strong-name signed.
  • The .NET assemblies are now Authenticode dual-signed with both SHA-1 and SHA-2.
  • Fixed a bug in the codegen targets when using gbc from $PATH on macOS and Linux that prevented the C# compiler from finding the generated C# files.
  • Preview: Added preliminary support for generating types with constructors with parameters for each field. This functionality will change in the future and may be removed. Pull request #857

7.0.2: 2017-10-30

  • gbc & compiler library: 0.10.1.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 7.0.2
  • C# NuGet version: 7.0.1
  • C# Comm NuGet version: 0.14.0

C++

  • Fixed a memory leak when deserializing Bond-over-gRPC messages that were stored as multiple slices.

C#

  • There were no C# changes in this release.

7.0.1: 2017-10-26

  • gbc & compiler library: 0.10.1.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 7.0.0
  • C# NuGet version: 7.0.1
  • C# Comm NuGet version: 0.14.0

C#

  • Fixes a regression introduced in 7.0.0 that resulted in an exception during generation of Serializer instances if the type contained an aliased required blob field.

7.0.0: 2017-10-24

  • gbc & compiler library: 0.10.1.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 7.0.0
  • C# NuGet version: 7.0.0
  • C# Comm NuGet version: 0.13.0

gbc and Bond compiler library

  • Add service/method annotations in C# for Comm and gRPC.
  • Add service/method metadata support in C++ for gRPC.
  • C++ codegen now uses std::allocator_traits for rebinding allocator types.

C++

  • Added bond::make_box helper function to create bond::Box<T> instances.
  • When Unicode conversion fails during JSON deserialization to wstring, a bond::CoreException is now thrown instead of a Boost exception.
  • When SimpleJSON deserializes a map key with no matching value, a bond::CoreException is now thrown.
  • When SimpleJSON deserializes a map key of non-primitive type, a bond::CoreException is now thrown.
  • Errors from some versions of G++ like "non-template type Deserialize used as a template" have been fixed. Issue #538
  • Guard against overflows in OutputMemoryStream, blob, and SimpleArray.
  • Use RapidJSON's iterative parser to handle deeply nested JSON data without causing a stack overflow.
  • Guard against min/max being function-style macros in more places.
  • Allow Bond-generated C++ types to use non-default-constructable allocators. (This works even on MSVC 2013 by only compiling the generated-type's default constructor if it is used. The default constructor is now a templated constructor that is invokable with zero arguments.)
  • Fixed some macro uses that did not have sufficient parenthesis around parameters and resulted in compiler errors.
  • Added the bond::ext::gRPC::shared_unary_call type. This type can be used when shared ownership semantics are needed for unary_call instances.
  • Provide compile-time access to metadata about gRPC services and methods.
  • Using bond::ext::gRPC::wait_callback no longer causes a shared_ptr cycle and the resulting resource leak.
  • Ensure that bond_grpc.h and bond_const_grpc.h are generated when the CMake variable BOND_ENABLE_GRPC is set to that importing bond.bond and bond_const.bond when defining a service works.
  • Added bond::capped_allocator adapter that will allow to limit the max number of bytes to allocate during deserialization.

C#

  • Breaking change The code generation MSBuild targets no longer support Mono's xbuild: only MSBuild is supported. Mono has deprecated xbuild in favor of MSBuild now that MSBuild is open source and cross-platform.
  • Breaking change The code generation MSBuild targets now automatically compile the generated _grpc.cs files if --grpc is passed to gbc. Explicit <Compile Include="$(IntermediateOutputPath)foo_grpc.cs" /> lines in MSBuild projects will need to be removed to fix error MSB3105 about duplicate items. See commit a120cd99 for an example of how to fix this. Issue #448
  • Breaking change The low-level API IParser.ContainerHandler now has an arraySegment parameter for the converted blob.
  • The code generation MSBuild targets will now skip compiling the _types.cs files when --structs=false is passed to gbc.
  • Added Bond.Box.Create helper method to create Bond.Box<T> instances.
  • Reflection.IsBonded now recognizes custom IBonded implementations.
  • Use Newtonsoft's JSON.NET BigInteger support -- when available -- to handle the full range of uint64 values in the SimpleJson protocol (.NET 4.5 or greater, .NET Standard 1.6 or greater).
  • Bond.IO.Unsafe.InputStream can now be used with streams that do not implement Stream.Seek, like System.IO.Compression.GzipStream. Issue #498
  • Fix a bug in CompactBinaryWriter when using v2 that repeated first pass when a bonded field was serailized, resulting in extra work and extra state left in the CompactBinaryWriter.
  • Apply IDL annotations to services and methods for gRPC. Issue #617
  • Fixed a bug that produced C# code that couldn't be compiled when using Bond-over-gRPC with a generic type instantiated with a collection. Issue #623
  • When targeting .NET 4.5, avoid resolving external entities when using SimpleXmlReader.
  • Remove redundant conversions during serialization of aliased blobs.

C# Comm

  • Apply IDL annotations to services and methods for Comm.

6.0.1

This version was allocated but never released.

6.0.0: 2017-06-29

  • gbc & compiler library: 0.10.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 6.0.0
  • C# NuGet version: 6.0.0
  • C# Comm NuGet version: 0.12.0

gbc and Bond compiler library

  • IDL support for service inheritance syntax
    • Breaking change In the Bond Haskell library, the Service type has a new field serviceBase.
  • C++ codegen now generates extern templates of bond::Apply instead of overloads.
  • C++ codegen hides FieldTemplate details, shortening symbol names.

C++

  • Breaking change A C++11 compiler is now required. The minimum supported C++ compiler versions are now:
    • Clang 3.4 or newer
    • GNU C++ 4.7 or newer
    • Microsoft Visual C++ 2013 or newer
  • Breaking change The generated apply.h/.cpp files now contain extern templates of bond::Apply instead of overload implementations. Calls to bare Apply or TypeNamespace::Apply must be changed to bond::Apply.
  • Breaking change Users who are implementing custom streams are now required to provide the free functions CreateInputBuffer, CreateOutputBuffer and GetBufferRange, depending on which scenarios are used (there will be a corresponding compilation error for each case).
    • Users who were mistakenly calling bond::Merge<T> with explicit an template argument will get a compilation error. To fix, remove the <T> part.
    • In addition, users of MSVC12 are required to define a range_type typedef as a return type of corresponding GetBufferRange inside their custom input buffer implementation.
    • Please see InputBuffer, OutputBuffer, and the bf example for more details.
  • Breaking change The bond::customize<protocols> has been removed. All the public APIs that require a protocol list (e.g. bond::Marshal) now accept an extra template argument Protocols which defaults to bond::BuiltInProtocols. Custom input streams now require bond::type_id<> to be specialized with a unique magic number. For more details please see the bf example.
  • Initial support for sending Bond objects over gRPC has been added.
  • The bond::Apply function now has a uniform signature. Call sites for the Marshaler<Writer> transform overload that were mistakenly passing Writer explicitly (e.g. bond::Apply<Writer>(marshaler, value)) will now get a compiler error. To fix, remove the <Writer> part: bond::Apply(marshaler, value).
  • Fixed a bug that caused serialization using CompactBinaryWriter<OutputCounter> (to get the expected length of serializing with compact binary) to produced bogus results.
  • Fixed custom streams support which was broken for some scenarios.
  • For Visual C++ 2017 compability, RapidJSON v1.0.0 or newer is now required. The RapidJSON submodule that Bond uses by default has been updated to v1.1.0 due to a warning from clang in earlier versions.
  • C++ codegen hides FieldTemplate details, shortening symbol names.

C#

  • Breaking change Support for .NET 4.0 has been dropped from the supported frameworks.
  • Breaking change The deprecated type Bond.BondReflection has been removed. The type Bond.Reflection should be used instead.
  • Breaking change Bond assemblies are now strong-name signed with the bond.snk key in the repository instead of with a Microsoft key. This allows anyone to produce compatible assemblies, not just Microsoft. Official distribution of Bond will continue to be Authenticode signed with a Microsoft certificate. Issue #414
    • The new public key for assemblies is now 00240000048000009400000006020000002400005253413100040000010001000d504ac18b4b149d2f7b0059b482f9b6d44d39059e6a96ff0a2a52678b5cfd8567cc67254132cd2debb5b95f6a1206a15c6f8ddac137c6c3ef4995f28c359acaa683a90995c8f08df7ce0aaa8836d331a344a514c443f112f80bf2ebed40ccb32d7df63c09b0d7bef80aecdc23ec200a458d4f8bafbcdeb9bf5ba111fbbd4787
  • Breaking change Bond assemblies now have assembly and file versions that correspond to their NuGet package version. Strong name identities will now change release-over-release in line with the NuGet package versions. Issue #325
  • The codegen MSBuild targets will now re-run codegen if gbc itself has been changed.
  • Fixed a bug where JSON and XML protocols would permit the serialization of non-nullable string fields that were set to null instead of throwing a NullReferenceException. Issue #417

5.3.1: 2017-04-25

  • gbc & compiler library: 0.9.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 5.3.0
  • C# NuGet version: 5.3.1
  • C# Comm NuGet version: 0.11.1

C#

  • Cleaned up documentation comments.

5.3.0: 2017-04-12

  • gbc & compiler library: 0.9.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 5.3.0
  • C# NuGet version: 5.3.0
  • C# Comm NuGet version: 0.11.0

gbc and Bond compiler library

  • C++ codegen ensures that parameter names do not shadow field names.
  • When generating C++ apply files, there are now explicit bond::Apply<> instantiations for CompactBinaryWriter<OutputCounter> and SimpleBinaryWriter<Null> writers. Pull request #373
    • Breaking change (Haskell library only): Language.Bond.Codegen.Cpp.ApplyOverloads.Protocol is now a union of ProtocolReader and ProtocolWriter to permit mixing and matching of reader/writer protocols without having to explicitly compute the full cross product.
  • Add gbc flags to pick which C# files to generate (structs, gRPC, and comm). Only structs are generated by default.
  • gbc ensures that method names are unique within a service. Issue #381

C++

  • Fix Python shared_ptr converter build break with Boost 1.63.
  • Improve compliance with Microsoft's SDL.
  • Eliminate need for warning suppression on MSVC14 via warning.h in Bond itself. warning.h is still in place on MSVC12; furthermore, we don't alter warning.h for now as it may be depended upon by application code.
  • Avoid unaligned memory access on non-x86/x64 platforms. Issue #305
  • Improve compliance with strict-aliasing rules.
    • Bond now builds on Clang/GCC with -fstrict-aliasing.
  • When generating C++ apply files, there are now explicit bond::Apply<> instantiations for CompactBinaryWriter<OutputCounter> and SimpleBinaryWriter<Null> writers. Pull request #373
  • Improve C++ allocator support Issue #379 Pull request #380
    • Support C++11 and above allocator model for rebind
    • Simplify detection of the default allocator
  • Remove per-field instantiation of DynamicParser<>::UnknownFieldOrTypeMismatch method.

C#

  • Added gRPC integration. See the Bond-over-gRPC manual.
  • Added controls to cap incremental allocation between reads in Bond.IO.Unsafe.InputStream.
  • Extended fix for bug parsing JSON when a string value is a date. Pull request #358
  • Bond C# 5.1.0 accidentally broke backward compability by renaming Bond.Reflection to Bond.BondReflection. This has been fixed: Bond.BondReflection was unrenamed back to Bond.Reflection, and a shim Bond.BondReflection type now redirects all calls to their original names to minimize further breakage. Issue #369
    • Code that started using Bond.BondReflection by name will encounter warning CS0618 indicating use of an obselete method/type. To fix this, use the original name Bond.Reflection. This warning can be suppressed if needed. However...
    • ...the shim type Bond.BondReflection will be removed during or after the next major release of C# Bond.

C# Comm

  • Breaking change To generate C# Comm files, be sure to pass the --comm flag to gbc. See how the pingpong example was updated.
  • C# Comm is now deprecated. We recommend that you use Bond-over-gRPC. See the Bond-over-gRPC manual.
  • EpoxyListener's StopAsync() now stops all the outstanding connections that it accepted.
  • EpoxyTransport's StopAsync() now stops all the connections and listeners that it created.

5.2.0: 2017-02-07

  • gbc & compiler library: 0.8.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 5.2.0
  • C# NuGet version: 5.2.0
  • C# Comm NuGet version: 0.10.0

gbc and Bond compiler library

  • Breaking change: The C++ Comm .cpp template has been renamed to comm_cpp from types_comm_cpp to match the file it generates.
  • Add export-attribute option for C++ and make apply-attribute a deprecated synonym for export-attribute
  • Fix C++ Comm build problems when services are shared via DLL. Issue #314

C++

  • Fixed compatibility with RapidJSON v1.1.0. Issue #271
  • The minimum supported version of Boost is now 1.58
  • The bf utility now supports multiple payloads. Pull request #288
  • Fixed an issue with aliased enums. Pull request #288
  • Fixed an issue with template parameter deduction in bond::is_nullable that occurs with Microsoft Visual C++ 2015 Update 3. Issue #306

C++ Comm

  • Fixed a multiply-defined symbol linker error for bond::comm::epoxy::detail::MakeConfigFrame.

C#

  • Added controls to cap pre-allocation during deserialization of containers and blobs.
  • Fixed computation of default value for aliased bool and wstring fields. Issue #300

C# Comm

  • Resources are now properly cleaned up if failures are encountered when establishing client-side Epoxy connections.
  • The generated interfaces for services are now public. They were inadvertently internal before.

5.1.0: 2016-11-14

  • gbc & compiler library: 0.7.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.2
  • C++ version: 5.1.0
  • C# NuGet version: 5.1.0
  • C# Comm NuGet version: 0.9.0

gbc and Bond compiler library

  • Breaking change: The Haskell utility functions structName and structParams were renamed to className and classParams (in the Language.Bond.Codegen.Cpp.Util module).
  • Added initial support for generating C++ Comm services and proxies.

C++ Comm

  • The initial C++ Comm code has been merged in, but there is still work left to be done before the first preview release. Use at your own risk.

C#

  • Bond C# now supports .NET Standard 1.0, 1.3, and 1.6, so you can use Bond in .NET Core applications. Pull request #243
    • Not all assemblies work with all versions of the .NET Standard or on all platforms. The manual lists which assemblies target which frameworks.
    • Bond C# Comm is not yet building with .NET Core toolchain, so its .NET Core support is preliminary.
  • Bond.JSON now depends on Newsoft.JSON 9.0.1, the earliest version that supports .NET Standard 1.0.
  • A new assembly, Bond.Reflection.dll, has been added, due to some internal refactoring needed for .NET Core support. Many of the Bond assemblies now have a dependency on this assembly, so you'll need to deploy it. If you use NuGet to consume Bond, this is should be handled automatically.
  • Fixed a bug in the MSBuild targets that caused codegen to always be run if all of the BondCodegen items have Options metadata.
  • Fixed a bug in the MSBuild targets that caused compilation to fail if the $BondOutputDirectory did not end with a trailing slash.

C# Comm

  • The constructor for LayerStackProvider no longer requires a logger; instead, the transport's logger is passed to OnSend/OnReceive. Before, using the same logger with a transport and LayerStackProvider required a duplicate implementation.
  • Fixed a bug that prevented EpoxyListener from accepting multiple connections in parallel.

C# Comm 0.8.0: 2016-10-12

  • C# Comm NuGet version: 0.8.0

C# Comm

  • EpoxyTransport can be configured to enable TCP keep-alive to help detect dead connections. See EpoxyTransportBuilder.SetKeepAliveTimes for details.

5.0.0: 2016-09-12

  • gbc & compiler library: 0.6.0.0
  • IDL core version: 2.0
  • IDL comm version: 1.1
  • C++ version: 5.0.0
  • C# NuGet version: 5.0.0
  • C# Comm NuGet version: 0.7.0

IDL core

  • Breaking change: bond.TypeDef.list_sub_type field removed, as it was breaking some consumers of serialized SchemaDef. We plan to restore this field in the future. Issue #161 re-opened

IDL comm

  • Update IDL to conform to naming conventions.
  • Adjust IDL for changes made to Epoxy internals

C++

  • Breaking change: Runtime SchemaDef list_sub_type field removed, as it was breaking some consumers of serialized SchemaDef. We plan to restore this field in the future. Issue #161 re-opened
  • Generated enum types now have a FromEnum method that can be used to convert from an enum value to a string. Now generated enum types have all four of ToEnum, FromEnum, ToString, and FromString. (The ...Enum variants return false on failure, while the ...String variants throw.)

C#

  • Breaking change: Runtime SchemaDef list_sub_type field removed, as it was breaking some consumers of serialized SchemaDef. We plan to restore this field in the future. Issue #161 re-opened
  • The Bond.Runtime NuGet package no longer artificially limits Newtonsoft.Json to versions before 10. Issue #212

C# Comm

  • EpoxyListeners can now be configured to require clients to authenticate themselves with a certificate. This is configured via the clientCertificateRequired parameter when creating an EpoxyServerTlsConfig.
  • Internals of the Epoxy protocol cleaned up. See the updated wire format specification.

4.3.0: 2016-08-23

  • gbc & compiler library: 0.5.0.0
  • IDL core version: 1.0 (first release)
  • IDL comm version: 1.0 (first release)
  • C++ version: 4.3.0
  • C# NuGet version: 4.3.0
  • C# Comm NuGet version: 0.6.0

gbc and Bond compiler library

  • Breaking change: Runtime SchemaDef now includes information about whether BT_LIST fields are nullable or blobs. Issue #161
  • User-defined TypeMappings can now be created. This makes is easier to implement code generation for new languages. Pull request #172
  • Validate default value type mistmatches. Issue #72 Issue #128
  • Validate default value out-of-range values. Issue #73
  • Fail when struct field has default value of nothing. Issue #164
  • Fail when enum field doesn't have default value. Issue #177
  • Validate default value of type aliases
  • Generated types will used = default move constructors if possible. This results in many generated types having noexcept move constructors.
  • Fix a bug where, if a Bond namespace contained a struct and an enum value with the same name, generated C++ would contain ambiguous references. Issue #202

IDL core

  • Set up a separate IDL directory so that IDL is independent of language bindings. Pull request #219

IDL comm

  • Set up a separate IDL directory so that IDL is independent of language bindings. Convert comm IDL files to use C++-style naming convention. Pull request #219

C++

  • Improvements in the nullable implementation. Pull request #174
    • Correctly use allocator model.
    • Reduce size of nullable in the normal case.
    • And others
  • Runtime SchemaDef now includes information about whether BT_LIST fields are nullable or blobs. Issue #161
  • The following Bond types have (possibly conditional) noexcept move constructors: blob, bonded, maybe, nullable, RuntimeSchema, value.

C#

  • Bond can now be used with Newtonsoft.Json >= 7.0.1 and < 10
  • Runtime SchemaDef now includes information about whether BT_LIST fields are nullable or blobs. Issue #161

C# Comm

  • Logging interface revamped to make it non-static, eliminate boilerplate code, and to handle logging-related exceptions gracefully.
    • LogHandler renamed to ILogSink.
    • TransportBuilder.SetLogSink added to associate a logger with a transport.
    • TransportBuilder.EnableDebugLogging added to control whether debug logs are emitted or not.
    • The ILogSink.Log method is now provided a pre-formatted string instead of a format string and its arguments.
  • Transport is now parameterized with Connection and Listener implementations. This eliminates the need to cast the results of transport.ConnectToAsync() and transport.MakeListener() to transport-specific subtypes.
  • Epoxy has a hook for performing custom host to IP address resolution. This is configured with EpoxyTransportBuilder.SetResolver.
  • Bond-generated Errors now give clients opaque GUIDs. These GUIDs can be matched against emitted metrics for debugging.
  • Epoxy can now be configured to use TLS to secure the connection.
    • TLS configuration is set via EpoxyTransportBuilder.SetClientTlsConfig/EpoxyTransportBuilder.SetServerTlsConfig.
    • See the TLS example for even more details.

4.2.1: 2016-06-02

  • gbc & compiler library: 0.4.1.0
  • C# NuGet version: 4.2.1
  • C# Comm NuGet version: 0.5.0

gbc

C#

  • Added Deserializer.TryDeserialize().
  • Added two new NuGet packages to make it easier to consume Bond piecemeal.
    • Bond.Compiler: contains gbc, bond.bond, and bond_const.bond in a tools-only package
    • Bond.Compiler.CSharp: contains gbc and C# MSBuild targets. No longer do you have to consume Bond.CSharp (which pulls in all of the rest of Bond) just to get codegen.

C# Comm

4.2.0: 2016-04-28

  • gbc & compiler library: 0.4.0.2
  • C# NuGet version: 4.2.0

C#

  • Add support for Compact Binary v2 writing. Issue #70

4.1.0: 2016-04-22

  • gbc & compiler library: 0.4.0.2
  • C# NuGet version: 4.1.0

gbc

C++

  • Enums are now cast to 32-bit integers to avoid some compiler warnings.
  • Bond can be used in code bases where there is a function-style macro named U.

C#

4.0.2: 2015-12-14

  • gbc & compiler library: 0.4.0.1
  • C# NuGet version: 4.0.2

Bond compiler library

C#

Breaking changes between 3.x and 4.x

Bond C# had the following breaking changes introduced in 4.x compared to the 3.x versions:

  • The Bond.Core.CSharp NuGet package was introduced so that not all uses of Bond depend on Json.NET. The Bond.Runtime.CSharp package still depends on Json.NET and also depends on Bond.Core.CSharp. The primary package remains Bond.CSharp.
  • CompactBinaryReader<InputStream> now explicitly implements ICloneable<CompactBinaryReader<InputStream>> instead of implicitly. FastBinaryReader and SimpleBinaryReader were likewise changed.

Earlier release

These sections need to be written. In the meantime, consult the repository's history.