v0.7.0

0.7.0 (2024-03-26)

Added

• More instruction supports for Intel, AArch64, PPC, and RISCV.
• Support Intel's AT&T syntax.
• Support lazy loading of ELF metadata.
• Handle dwarf action DW_CFA_same_value
• Add a new rear-end module, Transformer, which allows users to transform binary code into another form.
• Add initial SPARC support.
• Add initial SH4 support.

Changed

• Use .NET 8 (and F# 8): Our framework is not compatible with prior versions of .NET.
• Fix many lifting/parsing bugs for Intel, PPC, AArch64, and RISCV.
• Refactored many modules. Quite many modules/classes have been renamed.
• Improve XML documentation.
• Fix many bugs in the ELF parser.
• Add more unit tests.

v0.6.0

0.6.0 (2022-06-29)

Note

Since v0.5.0, our middle-end is closed-sourced, but we will publicize it sooner or later. So please stay tuned.

Added

• More instruction supports for MIPS
• More instruction supports for Intel
• Added support for WASM (thanks to @kimdora)
• Added several more classes in the Core module

Changed

• Now we use .NET 6 (and F# 6). Our framework is not compatible with .NET 5.
• Fixed MIPS exception frame parser
• Optimized ELF parser for loading callsite tables
• Fixed several bugs in Intel assembler
• Changed ConcEval's interface
• We now avoid using non-standard register sizes, such as 2<rt> and 3<rt>; we only use sizes multiple of 8 (e.g., 8, 16, 32, 64) or size 1. For those register variables whose size is non-standard, e.g., FTOP in Intel, we assign larger size for the variable.
• Fixed several bugs in Intel and MIPS lifters
• Fixed several bugs in BinFile module (ELF and PE)
• Fixed several bugs in the middle-end (such as tail-call detection logic, etc.)

v0.5.0

0.5.0 (2021-10-22)

Note

We have made significant changes in our middle-end (CFG recovery, and function
identification, etc.) engines for this version, and we are still improving it.
The current version is stable enough, but we are actively changing the
implementation while doing some internal research, which is hoding us back for
open-sourcing it. Hence, we decided to partly publicize our tool (everything but
the middle-end engine). We always welcome PRs for our front-end modules 😄

We may bump few more versions before making everything public, but we will
eventually open-source everything. So please stay tuned!

Added

• Handle ELF exception frames
• Introduce new CFG recovery engine
• Introduce BinaryPointer type which allows accessing non-addressable region of binary.
• Add few more instruction support for x86-64 and ARMv7
• Add a RearEnd.Launcher, which is a .NET CLI tool. You can now install B2R2 by typing dotnet tool install -g B2R2.RearEnd.Launcher.
• Add support for AVR architecture

Changed

• MiddleEnd has been largely rewritten
• Module and function names largely changed.
• Hash-consing is now controlled with build macro HASHCONS
• MiddleEnd.ConcEval works with base address changes
• Local IR optimizer has been rewritten
• Optimized data-flow engine

v0.4.0

0.4.0 (2020-05-02)

Added

• Add support for Mach-O relocation.
• Add support for COFF object parsing.
• Add support for floating-point operations.
• Add several missing Intel instructions.
• Add a basic dataflow framework.
• Add a partial support for Intel assembler. We will fully implement Intel
  assembler in the next version.

Changed

• Fix various liting/parsing bugs.
• Fix dominator algorithm bug.
• Fix various BinGraph bugs.
• Improve Web UI performance.
• Fix a zooming bug in the Web UI.
• Update OptParse version.
• Remove manually-encoded Intel constants, which will slightly slow down our
  front-end, but it will improve the maintanence cost.
• Clean up the REPL app, and make it more generic for future use.
• Split MiddleEnd from BinGraph.

v0.3.1

0.3.1 (2020-01-11)

Added

• Add boilerplate code for assembler.
• Add Nil to LowUIR to correctly handle cons cells.
• Handle delayed import directory table for PE files.
• Add basic EVM bytecode support.

Changed

• Fix and refactor simple calculator language implementation.
• Fix Mach section parsing bug.
• Fix ARM translation errors.
• Remove assumption about callee names.
• Fix bitectors to generally handle arbitrary sizes.
• Fix several visualization issues.
• Rewrite completely the web user interface from scratch.

v0.3.0

0.3.0 (2019-09-28)

Added

• Add a demangler module for both Itanium and MS types.
• Add GetNextAddrs method to Instruction type.
• Add several CFG-related lenses to smoothly transform a certain graph into
  another form.
• Start supporting ARMv7 SIMD instructions.
• Add a simple REPL for LowUIR.
• Add a simple calculator language for BinExplorer.

Changed

• Fix ARMv7 translation errors (close to stable now).
• Fix subtle errors in ELF parsing (GitHub issue #25)
• Fix visualization bugs.
• Redesign many parts in BinGraph modules and their APIs.
• Fix graph building logic to handle ARM/Thumb switching.
• Refactor WebUI modules.
• Update disassembly modules to be able to decompose assembly statements into
  pieces.

v0.2.1

0.2.1 (2019-07-21)

Added

• Add a draggable handle between WebUI panes.

Changed

• Fix various ARMv7 parsing/lifting bugs (not yet stable, but getting there).
• Fix PE header parsing bugs (GitHub issue #23 and #24)
• Fix x86 parsing errors (GitHub issue #22)

v0.2.0

0.2.0 (2019-07-11)

Added

• Add a new style in the WebUI.
• Add a search feature in the WebUI.
• Add Mach-O fat file format support.
• Add FileViewer utility.
• Add a batch option to BinExplorer.
• Add a boilerplate assembler module.
• Add the conceval (concrete evaluation) module.

Changed

• Rewrote BinFile modules.
• Fix bugs in the minimap handling of the WebUI.
• Clean up ROP gadget search.
• Fix a BitVector bug.
• Fix a IntervalSet bug.
• Fix various ARMv7 parsing and lifting bugs (not yet stable).
• Enable the use of external lifter.

v0.1.1

0.1.1 (2019-03-22)

Added

• Add IR/SSA-level CFG construction.
• Add boyer-moore search algorithm.
• Add support for several x86/64 instructions.

Changed

• Fix various IR translation/parsing errors
• Clean up LowUIR side-effect types
• Update authors/contributors

v0.1.0

0.1.0 (2019-02-22)

First public release.