New features in version 4.30

• User Interface
  • Major improvement too many changes to list, MDI, context sensitive toolbars, more standard looks.

• Processors
  • ARM Architecture Version 5E (Enhanced DSP) instructions are supported, FLIRT signatures and type information files have been added.
  • Motorola 6812: many new chip types are supported, memory configurations can be specified

• File Formats
  • Improved support of PSX object files.
  • Improved support of EPOC files.
  • Borland extensions for DMPI to PE executables are supported
  • ELF machine type 6 is supported

• Kernel
  • The stack tracing algorithm is improved
  • Type libraries are regenerated: they are smaller
  • Improved FLAIR utilities (added ELF support for IBM PC)
     
• Bugfixes
  • Fixed a bug in PIT: all stack parameters were shifted by 4 for indirect calls
  • IA64: brl.cond.dptk.few instruction caused an internal error
  • the list of xrefs to a stack variable could contain wrong data items (only instructions can be in this list)
  • fixed bug in set_de (some standard enumeration declarations were wrong)
  • TMS320C6: several bugs are fixed (ACR/ADR, B reg src2)
  • Better handling of stack references to the saved registers area: bp-based frames are not modified because of this
  • PowerPC: wrteei instruction was disassembled incorrectly
  • Some enumeration constants in the type libraries could have incorrect values
  • IDA would lose some variable names if more than 1000 very long variable names were defined (1KB long names)
  • If the last symbolic constant of the last enumeration was not the only symbolic constant in the enumeration and its value was equal to -1, then it would not be displayed in the enumeration definition

New features in version 4.21 (4/19/2002)

• Processors
  • Trimedia (upon special request only)
  • TMS320C55 (advanced). All documented instructions are supported
  • the PIC processor module offers better analysis of bank switches
  • 8-bit Motorola : many new chip types are supported, memory configurations can be specified
  • C166 (advanced): many more chip types are supported, memory configurations can be specified
  • F2MC : many more chip variants are supported, memory configurations can be specified
  • Z180 configuration files have been added
  • IBM PC: memory references with the sib byte can be converted to offsets.
  • ARM: pseudo-instructions can be turned off (ret)

• File Formats
  • Intel OMF386 is added
  • EPOC6 import ordinals are supported

• User Interface
   
  • New graphing commands:
    • xrefs from/to code,data,externals
    • user-defined graph (various options)
    • highlight current addresses in graph (blue by default)
  • The Search Toolbar now allows to search incrementally for text, names, functions, addresses, etc.
  • Hovering the mouse over a label displays a hint with the instructions/data at that label
  • The Rename command is available only if the cursor is either on a valid identifier or address or at the beginning of the list (to the left of the instruction mnemonics)
  • Direct conversion to code/data without intermediate step of undefining the existing item. Use the options dialog box if you want to customize this behaviour.
  • Improved highlighting of identifiers. The highlight color can be changed
  • The listbox and messages window contents can now be copied to the clipboard
  • Unhide all functions
  • Names: ask confirmation to delete a name from the list
  • In the structures window it is possible to jump to the desired structure using the "Jump by name" command. The hotkey is Ctrl-L. The same command is available in the enumerations window.
  • Welcome box:
    • delete removes previous projects from the list
    • hovering over the project now displays the full name of the file
  • It is possible to specify the number of bytes purged for the imported functions (through Edit->Function)
  • A command line window can now be used to enter IDC commands: (IDAGUI.CFG, DISPLAY_COMMAND_LINE should be YES to activate this).
  • Immediate help on an IDC function
  • Text version: a local clipboard is added to the dialog forms. (Ctrl-Ins - copy, Shift-Del - cut, Shift-Ins - paste, Ctrl-Del - delete).

• Kernel Improvements
  • Better demangling of Borland C++ names, including the templates. Since there is no way to distinguish the new and the old naming
    schemes, now IDA tries both methods. This can sometimes lead to wrongly demangled names.
  • Borland CBuilder v6 FLIRT signatures are added

• Bug Fixes
   
  • For some PE files, the exported function names were missing.
  • Negative 16-bit structure offsets with non-zero delta would be displayed wrongly.
  • Structures with embedded unions aligned to 8 bytes could have wrong member offsets.
  • IBM PC: if "Allow references with different segment bases" was set, then the complex offset expressions would have wrong values.
  • OS/2 version was broken.
  • OMF COMDEF far records were processed incorrectly.
  • Negative 8/16-bit values were badly represented as enumeration constants. The logic has been changed to make it easier to handle
  • Binary files for wide byte processors (line PIC16) were not loaded completely.
  • H8/500: 16-bit jumps in the page different from page0 would still refer to the page0
  • H8/500: the values segment registers BR and DP are used and stored
  • COFF 386: IMAGE_REL_I386_SECREL relocation type is supported
  • It was possible to scroll past the end of the disassembly listing using the mouse wheel
  • Some kinds of corrupted PE files are loaded better than before
  • Some segment:offset address expressions were parsed incorrectly
  • It was impossible to create local labels with data references
  • get_screen_ea() was broken.

IDA Pro PIC Limited Edition

• a reduced price version that offers all the power of IDA Pro for the PIC family of microcontrollers only. (3/14/2002)

New features in version 4.20 (12/19/2001)

• Processsors
  • TMS 320C54xx
  • The Motorola 8/16-bit processor modules (except 6812) now support configuration files with the memory, interrupt vector, and I/O port definitions.
    See files named 68xx.cfg. Currently only 6805.cfg and 6811.cfg are available and other files will be made available later.
  • The C166 module displays an information box explaining about the memory mapping feature present in the Options, General, Analysis, Processor specific options.
     
• File Formats
  • Microsoft.Net Beta2 files are supported.
  • Stricter check for RT-11 SAV file format. The file extension should be "SAV". There were too many false recognitions.
  • PE files: IDA Pro now recognizes TLS callback entries and properly comments them.
  • ELF files with destroyed SHT are supported.
• Interface
  • Arrows: The graphics version displays the execution flow in the form of small arrows to the left of the disassembly text.
  • Highlight: IDA highlights the current identifier on the screen. Alt-Up, Alt-Down arrows search for the highlighted identifier in the text. The highlight can be turned off in the Options, General, Misc dialog box.
     
  • IDA starts to scroll the window without waiting the cursor to reach the window top/bottom. Also it is possible to scroll the window by using Ctrl-Up, Ctrl-Down arrows.
  • Shift-Enter or Shift-DoubleClick selects the current identifier.
  • Edit, Function, Rename register: Register renaming definitions start at the cursor position and last up to the next definition. The address range of the existing definition is automatically truncated at the cursor position.
     
• Kernel Improvements
  • The function boundaries are automatically changed if an item overlapping it is created.
  • the LoadSym.Idc has been improved to work with dbg2map and mapsym
• Bugfixes
  • ARM BX instruction was not disassembled.
  • TXT version: Ctrl-Up, Ctrl-Down and other keys were not recognized as valid keycodes.
  • PPC ELF R_PPC_EMB_SDA21 relocation type is handled differently. Since there is not enough documentation, this could still be wrong.
  • Motorola movec instruction wouldn't be disassembled if an unknown control register is present in the instruction
  • delphi.sig doesn't load bcb5win.til anymore
  • TXT version: Ctrl-N was not working in the Enumerations window
  • H8 in the advanced mode would use 32-bits for the @aa:8, @aa:16, @aa:24 addressing modes
  • IDA Pro under Windows could crash if "comment ascii references" was on
  • Motorola 6805 brclr/brset/bclr/bset syntax now conforms regular conventions
  • IBM PC: redundant rep/repne prefixes were in the wrong order
  • Enumerations window: the text search could fail if there was only one defined enumeration
  • netnode::getblob could return nonexistent blob
  • TMS320C6 module could crash is a specific illegal opcode is encountered (ldb.d2 *+b14[35], b1 with 'dst' field bit 0x10 set)
  • It was not possible to expand a variable sized structure just before its last member
     

New features in version 4.18 (10/19/2001)

• Processsors
  • Fujitsu F2MC-16L and F2MC-16LX (advanced version).
  • PIC12xx, PIC14xx, PIC18xx processors in addition to the already supported 16xx family. (standard version)
  • Intel 960 module enhanced: FLIRT and types are supported I/O port names are added to i960.cfg
  • W65C02S support has been added to the 6502 module.
    
• File Formats
  • the PDB plugin recognizes the Windows XP SymDia symbols. Thanks to Mark Russinovich for the contribution.
  • OpenBSD aout files are supported
  • COFF files for Intel 960 are supported
  • ELF AR libraries are supported
• Interface
  • a new window listing callers and callees is available.
  • Wingraph 32 can now print.
  • Zooming in and out on graphs can be controlled by the mouse.
  • a small notepad has been added. The notes are saved and opened each time the database is reloaded.
  • IDA Pro is now able to check for the availability of updates and warns when the free update period is about to expire.
  • Patching has been removed from the default installation but can be activated by the DISPLAY_PATCH_SUBMENU option.
  • 'Undefine' now warns before proceeding. this option can be turned off by the CONFIRM_UNDEFINE_COMMAND parameter in the IDAGUI.CFG or IDATUI.CFG files.
• Kernel Improvements
  • Enhanced recognition of the function calling conventions.
  • Floating point numbers in the instruction operands are supported
  • Slightly improved vc6.til file.
  • Automatically resize the saved registers area in the function frame if there is a reference into the area from the function body.
  • New linux system calls are recognized by IDA Pro
• Bugfixes
  • ARM BX instruction was not disassembled.
  • The last character of unicode strings would be missing sometimes for the big endian processors.
  • MC6811 LDA instructions would create 16-bit data item.
  • IDA would miscalculate the program end after loading binary files
  • "rename stack variable" at place would rename a wrong variable
  • Uninitialized array elements with the specified width would not be displayed
  • A plugin that opened a non-modal window would be unloaded at the exit before having chance to clean up the window, which would lead to a crash
  • A bitfield with one member equal to -1 mask -1 could not be converted into a normal enumeration.

New features in version 4.17 (6/22/2001)

• Processsors
  • Intel 960 support
  • ST20/C2-C4 support
  • .Net module improved
  • DEC Alpha processor improved and supports the type system. Thanks to Ahmon Dancy for help.
  • PowerPC module improved
• File Formats
  • IDA Pro can now load hexadecimal and octal memory dumps in free format. (A set of heuristics is used to recognize and load such files).
  • Mach-O executable files are supported. (The relocation information is ignored for the moment.)
  • Microsoft X-box XBE files are supported. (However, the module may not cover all possible file format particularities).
  • Compaq Tru64 dynamic loader information is supported.
• Interface
  • External graphing module displays functions flow charts..
  • Array element indexes can be displayed as comments
  • The MakeAnyName (Ctrl-N) command is removed. The MakeName command is enhanced to handle all cases.
  • The Welcome dialog box is improved and keeps track of several previous disassemblies.
  • The GUI version has a Strings Window which contains all string constants present in the program.
  • GUI version: Alt-Enter = go to address in a new disassembly window.
  • GUI version: a special hotkey to create unicode strings can be assigned. See the IDAGUI.CFG file, the parameter name MakeUnicode.
  • GUI: the RAM/ROM sizes and addresses can be specified for binary files if the processor module doesn't handle it automatically.
• Kernel Improvements
  • New configuration parameter: ASCII_SAVECASE. If set, then IDA will preserve the case of the string contents when generating the string name.
  • Public global variables with anonymous structure or enumeration types are supported by the type system.
• Bugfixes
  • IDA would crash if the database was saved when the IDAView-A window was closed.
  • Microsoft.Net: the closing curly brace was missing for the classes with some fields but no methods.
  • the text version would crash if the analysis options were accessed from the "load file" dialog box.
  • Sparc V8 fmovs/fnegs/fabss instruction couldn't be disassembled.
  • C166 bmov/bmovn/bxor/band/bcmp instructions had the operands swapped.
  • It was not possible to declare a structure member as an enumeration type.
  • ST-20 module disassembled nfix prefix incorrectly.
  • In some rare circumstances the sizes of the standard structures would be calculated incorrectly. This would render the structure definition useless and would make impossible to import it into the database.
  • IDA wouldn't work on very old Win95 boxes due to GetFreeDiskSpace problem.
  • Some processor-module specific dialog boxes could crash IDA.
  • Java module was badly broken.
  • An empty "if(1) {}" statement would cause a stack overflow in IDC runtime.
  • An error message in IDC parse is fixed. Before it would say: Compilation error: longname.idc,1: Too long identifier '(null)' without displaying the variable name.
  • Java module wouldn't show the instruction opcodes.
  • Hitachi H8S @aa:16 addressing mode was not sign extending the 16-bit address
  • It was not possible to add a standard structure which consisted of one anonymous field (an example: the Visual C++ VARIANT structure).
  • IDA would exit with the "empty type name" message if a global variable with an anonymous type is encountered in the program 

New features in version 4.16 (3/22/2001)

• Intel Itanium IA64 support (advanced).
• Microsoft.Net CLI (Common Language Infrastructure) support (standard).
• Motorola 68HC12 support (standard).
  
• Register argument type propagation is implemented. It can be turned off in the kernel analysis options 2.
• Plugins can hook to the processor and kernel events.
• Plugins can be written in either Visual C/C++ or Borland C/C++.
• Processor extension plugins can be used to add instructions to processor modules.
• IDA's interfaces with the external world have been redefined.
• Unicode strings are recognized even if the default string type is "zero-terminated C string". This behaviour can be turned off using the analysis options. The terminating zero is included in the unicode strings.
• Enumerations can have several symbolic constants with the same value.
• 128bit operands and data items can be displayed (only binary and hexadecimal formats are supported for the moment).
• MFC IDS files are improved: number of purged bytes are added into the function descriptions.
• Linux system call numbers (int 80h) are commented properly.
• Backups of the databases can be created.
• User-defined line prefixes can be defined. See a sample in the SDK to learn how to use it.
• ELF Playstation 2 loader is improved.
• ELF H8 files are supported.
• PE files: TLS directory information is taken into account; new delayed import tables are supported (Characteristics & 1)
• PE files: it is possible to load files to arbitrary addresses using the manual load feature.
• IBM PC: Pentium 4 instructions are supported.
• IBM PC: redundant instruction prefixes are supported.
• IBM PC: AMD syscall/sysret instructions are supported.
• SPARC: the type system is supported. The type propagation is not implemented yet.
• SPARC: the SPARC assembler is now supported. (special thanks to Ahmon Dancy)
• SPARC: some minor bugs are fixed, Sparc assembler is supported.
• SPARC: architecture V8 in addition to V9 is supported.
• PowerPC module is improved: jump tables are recognized, lis/addi pairs are more aggresively converted to offsets
• H8 module is improved: jump tables are recognized
• C166 module is improved and several bugs are fixed. Thanks (again) to Ahmon Dancy for the information
• UNC file names are supported
• Many small interface enhancements
• Instruction opcodes are not displayed on xref/public lines.
• GUI: a fully synchronized scrollable hex viewer has been added.
• GUI: column widths in the list boxes are remembered
• The "Mark variable" command is removed.
• BUGFIX: IBM PC: movhps/movlps instructions were disassembled as movhlps/movlhps for opcodes 0F, 13 and 0F,17.
• BUGFIX: IDC.IDC: some macro definitions would cause syntax errors.
• BUGFIX: Text version: an attempt to exit with some "find all" windows open would crash IDA.
• BUGFIX: GUI version: in some rare circumstances the first item of the sorted lists would refresh incorrectly.
• BUGFIX: some bugs in the type system are fixed.
• BUGFIX: It was not possible to declare some standard structures.
• BUGFIX: MAP files for PE files sometimes had incorrect segmentation information.
• BUGFIX: Intel 8051: 24-bit addressing was good only for ecall/ejmp instructions.
• BUGFIX: The stack argument type propagation could hang on functions which access their stack without allocating it.
  

Update to 4.15 (1/10/2001)

• we've added support for the Pentium 4 new instructions.

New features in version 4.15 (12/2/2000)

• Feature : CodeView NB11 debug information support
• Feature : Struct offset deltas are supported. They allow to convert, for example,
  mov ax, 3 to mov ax, mystruct.field5-2
• Feature : stack argument information propagation. (Since this feature is somewhat experimental,it can be turned
  off in Analysis options, Kernel options 2).
• Feature : MakeArray command will now attempt to create an array even when some array elements are already defined as data items.
• Feature : some find dialog boxes allow to find and display all occurences of the desired instructions.
• Feature : MC86xx: enhanced operand type support (offsets, enums, stack vars, struct offsets can be applied to any complex operand)
• New processor ADVANCED : Siemens C166 and family ( C161 C161V-L16M, C161K-L16M, C161O-L16M, C161RI-L16M, C161RI-L16F C163 C163-LF, C163-L25F, C163-16F25F, C164, C164CI-8EM, C164CI-8RM, C165, C165-LM, C165-L25M, C165-RM, C165-LF, C165-L25F, C166, SAB80C166-M, SAB80C166-M25, SAB83C166-5M, SAB83C166-5M25, SAB88C166-5M, SAB80C166W-M, SAB83C166W-5M, SAB88C166W-5M, C167, C167-LM, C167S-4RM, C167SR-LM, C167CR-LM, C167CR-L25M, C167CR-4RM, C167CR-16RM, C167CR-16FM )
• New processor: STANDARD : SGS-Thomson ST7, SGS-Thomson ST20
• Improved processor : MIPS : MIPS16 encoding is supported
• Improved processor : PIC : port mapping like STATUS as at addresses 3, 83, 103, 183 are supported, PCLATH register is traced (see the segment registers), all modifications of PCL register are taken into account.
• Improved Processor : AVR: MegaAVR new instructions are supported. Thanks to Chris Dalla for information.
• Improved Processor : MIPS r5900: parallel shift and SA register instructions are added
• FLIRT: ELF preprocessor is added. Currently it supports only MIPS processor
• GEOS loader takes into account the uninitialized data segment, knows about
  the process class and the structure of the exported entries
• GEOS standard types are supported
• BUGFIX: Motorola 68K module would crash in response to Alt-R, Ctrl-S, etc.
• BUGFIX: The script toolbar would contain references to bad IDC script names
• BUGFIX: MIPS R5900 processor was not available from the load dialog box
• BUGFIX: IDA would use metapc as the default processor for all except the first file opened in the gui environment regardless of the DEFAULT_PROCESSOR parameter in IDA.CFG
• BUGFIX: some flavors of PIC HEX files were incorrectly loaded
• BUGFIX: it was not possible to delete items from the problem list using the Del key.
• BUGFIX: some MIPS R5900 instructions were not disassembled
• TXT version: the search direction indicator was not refreshed immediately
  after a direction change.
• TXT version: the text version confused the "manual operand" and "text search" commands.

New features in version 4.14 (7/27/2000)

• New Processor : Motorola 56K DSP
• New Processor : Motorola ColdFire
• PowerPC Embedded Controller Instructions have been added to the PPC module
• New Processor : H8/500
• New Processor : Z80 derived Gameboy Processor
• Preliminary version of R5900 processor support (Sony PlayStation(tm) 2)
• ARM architecture version 5 support
• GEOS executables are supported
• PIC: now pic.cfg can be modified for different devices
• EPOC SIS files are now directly supported.
• PPC: Loading of LinuxPPC executables is enhanced
• A "program navigator" band is available in the GUI version
• All list viewers have been enhanced to support sorting.
• Structs/enums can be hidden/unhidden with +/- hotkeys
• The state of the script toolbar is saved between sessions.
• New TIL files have been added to the type system.
• Zero constants with one bit masks are allowed in the bitfields.
  For example:
  #define PARITY_EVEN 0x01
  #define PARITY_ODD 0x00
  defines 2 states of a one bit mask.
• The user name is saved in the database.
• Parameter names derived using the type information are automatically changed when the function declaration is changed.
• IDA can mark the boundaries of the basic blocks by inserting an empty line after them. A basic block is a sequence of instructions with no jumps to/from the middle of the block.
• PE: Forwarder exports are supported.
• IDC: The recursion depth can be changed using IDC_CALLDEPTH and IDC_STACKSIZE parameters in IDA.CFG
• IDC: New function SetStatus(). This function allows the user to change the IDA status indicator (green, yellow, red)
• BUGFIX: COFF PC: 32-bit offsets to 16-bit segments are handled properly
• BUGFIX: Disassembling a WDM driver with unknown VxD/VMM calls could crash IDA
• BUGFIX: It was not possible to use predefined structures with anonymous fields, e.g. the SYSTEM_INFO structure was not available in the disassembly
• BUGFIX: movem instruction with pc-relative addressing mode from memory to register would not disassemble (Motorola 68k)
• BUGFIX: IDA would crash trying to load some Watcom executables.
• BUGFIX: Sometimes it was not possible to create the .align directive at the very end of a segment.
• BUGFIX: The return size of the function stack frame was unchangeable even when the function return type (far/near) was changed.
• BUGFIX: In some unusual cases the first two characters of local variable names would be missing.
• BUGFIX: 6809 leax instruction pc-relative mode used the wrong target address.
• BUGFIX: The enumerated dummy name count could be wrong is some circumstances (e.g., there could be 2 labels "loc_55").
• BUGFIX: Some virus-tainted PE files would not load.
• BUGFIX: "produce diff file" would hang IDA in some circumstances.
• BUGFIX: GUI version could crash trying to reload the same database.

New features in version 4.10 (6/19/2000)

• Introduction of the Type System : standard function types are recognized and the information about their parameters is used in the disassembly. The type System is initially available for Windows binaries.
• USER added types : the type system allows the user to define his own types and to load external header files. This means that IDA Pro now includes significant parts of a compiler, namely: the C preprocessor, lexer, parser, and semantic analyser of type declarations. We expect some problems in this new part of software.
• Standard structures, enumerations and union definitions can be applied to the disassembly directly from the type database.
• MS Windows WDM calls are now supported and commented.
• HP PA RISC Processor : all v2 architecture instructions are supported, the HP SOM file format is supported but relocations are not supported (advanced).
• The free compiler BCC 5.5 can now be used to compiled processor modules and plugins.
• All operands, including registers, can now be modified through the manual operand command.
• NB10 Plugin now integrated.
• Borland RTTI plugins
• 80196 : support has been added for the windows selection registers WSR and WSR1
• IDC : the function GetIdbPath() returns the full path name to the current IDB file.
• TEXT_SEARCH_CASE_SENSITIVE cfg parameter added.
• BIN_SEARCH_CASE_SENSITIVE cfg parameter added.
• BUGFIX : some comments in vxd.cmt were wrong.
• BUGFIX : the external help (CTRL-F1- would not work when the cursor was past the end of the line.
• BUGFIX : it is now possible to define the default value of the last segment register.
• BUGFIX : the GNU H8 assembler now uses ';' as a comment symbol.
• BUGFIX : MS COFF 16 bits segments are now loaded correctly.

New plugin

• We have released a plug-in that helps you deal with Microsoft's NB10 debugging
  information and its external PDB files.

New features in version 4.04 (4/4/2000)

• First release of the Alpha disassembler (ELF and COFF file formats are supported)
• Sony Playstation 2 ELF Disassembler
• ARM thumb mode is now disassembled
• Commenting of Windows NT Int 2E calls
• Variable bytes in search strings
• Local names are not demangled anymore
• The delayed import tables of PE Files are supported.
• the information found in the AIX COFF optional header is now used to improve the disassembly.
• BUGFIX : some Windows CE IDS files should have been platform-specific.
• BUGFIX : dummy names in the tail bytes were not deleted.
• BUGFIX: .align 2 was inaccessible from the user interface in some cases.
• BUGFIX: cvttps2pi, cvtps2pi (IBMPC) instructions were incorrectly disassembled.
• BUGFIX: sections with wrong size in the file header (PE) were not loading at all.
• BUGFIX: IDA Pro could crash apparently randomly.
• BUGFIX: search was not possible in the enumerations and structures window.
• BUGFIX: the import section of some PE files was loaded incorrectly.
• BUGFIX: it was not possible to stop analysis from the "load file" dialog box

New features in version 4.03 (3/9/2000)

• Register Variables (allows you to rename processor registers - improves the usability of the RISC disassembler) .
• Local Labels in functions.
• GUI : String Manipulation Toolbar.
• GUI : toolbars can now be hidden.
• The ARM disassembler module has been improved.
• IDC : new function GetInputFilePath()
• MISC : if the IDA_NOWIN environment variable is defined, the console version of IDA will run under WINE.
• BUGFIX : arrays can now be defined as element of structures.
• BUGFIX : some XCOFF files could not be loaded and disassembled, IDAW disk space routine could crash.

New features in version 4.02 (2/11/2000)

• We now disassemble SPARC V9 and UltraSparc II (advanced version).
• We now disassemble EPOC executable and EPOC ROM image files.
• Disassembler module for the 80196NU & NP processor.
• Improved PalmOS 3.0 support.
• Improved the Atmel AVR disassembler. Thanks to Chris Dalla.
• Microsoft AR import libraries are supported.
• Amiga Hunk File Loader (preliminary support).
• IDC : SetManualInsn/GetManualInsn IDC functions have been added.
• IDC : OpNot() bitwise NOT on the operand.
• New ascii string types: unicode-pascal (2 byte length) and wide-unicode-pascal (4 byte length).
• IBMPC: the SFENCE instruction is now disassembled, even with an illegal ModRM byte.
• if the database is closed while Shift is depressed, IDA will save it without any question.
• Ctrl-Shift will close the database without saving it into the disk.
• GUI: the structure and the enum windows now have a menubar and a popup menu.
• GUI : IDC programs can now be loaded, executed and edited from a toolbar.
• GUI : double clicking an address in the message area moves in the disassembly.
• GUI: "secondary windows always on top" feature is added.
• GUI: "hide all functions" is added.
• GUI: lazy jumps and autohide/unhide features(see options/navigation page).
• GUI: file offsets are now constantly displayed on the status bar.
• GUI: the syntax highlighting color setup dialog has been improved.
• GUI : navigation between open windows using Alt- hotkeys.
• The number of lines per item is now configurable. See MAX_ITEM_LINES parameter in IDA.CFG file. The default is 5000.

New features in version 4.01 (11/5/99)

• Disassembler module for the Zilog Z180 and Z380 (standard version)
• Disassembler module for Pic 16xxx (standard version)
• Disassembler module for MC6303 ASxxxx: bitwise OR and NOT operators.
• text search and other potentially lengthy operations can now be aborted
• several bugs have been fixed.

New features in version 4.0 (9/21/99)

• Windows GUI Version
• Disassembler module for AMD Athlon (std)
• MacOS A-TRAPS
• PE Files : the imports segment is created even if it was absent from the original file.
• COFF debug information in PE files is now loaded.
• 80x86 undocumented instructions
• 8085 undocumented instructions
• PC_ANALYSE_DIFBASE : new analysis configuration option.
• Help is available in HTML

New features in version 3.8 (09/11/98)

1. The Hitachi SH-3 processor is now supported (extended version).
2. The Intel 80196 processor is now supported (included in the base package).
3. The Zilog Z-8 processor is now supported.
4. Complex references are now supported.
5. NetBSD a.out files are now supported.
6. ARM ELF executable are now supported.
7. PowerPC ELF executables are now supported.
8. MakeAlign and GenerateFile have been added to the build-in IDC language.
9. Floating Point emulation instructions are now disassembled.
10. The load file dialog now supports processor type choice and analysis options definition.
11. The video mode can now be changed on the fly
12. The PE loader has been improved to support some virus infected files.
13. Bugs have been fixed in the PE loader, in the 68K module, in the structure view, in the Borland name demangler, in    the handling of wide ASCII pascal strings and in various other areas.

New features and bug fixes in version 3.6

MAJOR FEATURES ADDED

(3.6) Standard Run-time Library Recognition

The following compilers are supported in this release. Support for other compilers will be added in the future.
Turbo C v2.0
Turbo C v2.01b
Turbo C++ v1.01
Borland C++ v3.1
Borland C++ v4.0
Borland C++ v4.5
Borland C++ v5.0
Borland C++ for OS/2 v1.5
EMX (GCC) for OS/2 v0.9b
Microsoft Quick C
Microsoft C v7.0
Microsoft Visual C++ v1.0
Microsoft Visual C++ v1.5
Microsoft Visual C++ v2.0
Microsoft Visual C++ v4.0
Microsoft Visual C++ v4.1
Symantec C++ v6.0
Symantec C++ v6.1
Visual Age C++ v3.0
Watcom C++ v9.5
Watcom C++ v10.0b
Zortech C v1.0
Zortech C v3.1

(3.6) 32-bit Windows native disassembly environment (console)

(3.6) Java support (and ZIP support)

(3.6) Motorola 8bit processors are now supported.

Motorola MC6800
Motorola MC6801
Motorola MC6803
Motorola MC6805
Motorola MC6808
Motorola MC6809
Motorola MC6811

IMPROVEMENTS

(3.6) 64MB programs can now be disassembled.

(3.6) OMF libraries are now recognized and modules can be extracted and disassembled.

(3.6) CEXTDEF records in OBJ files are now handled properly.

(3.6) improved recognition of data segment for DOS executables.

(3.6) COFF : the C_NT_WEAK storage class is now handled.

(3.6) OS/2 Merlin chained relocation records are now handled properly.

(3.6) the following sequence has changed: dd -> float -> dq -> dt

(3.6) jump tables are now analyzed faster.

(3.6) the generation of map files has been improved.

(3.6) It is now possible to define the following environment. variables.

IDASGN points to the signature directory.
IDAIDS points to the IDS files directory.

(3.6) the environment variable IDA_PAGESIZE now defines the page size for newly created databases. The default page size is 4096. Pagesize should be power of 2. You may want to increase the page size if you hit limit on the number of chunks when loading an .OBJ or NE file.
Judicious use of this variable now allows the disassembly of files of virtually any size.

(3.6) the -b (program base address) switch now understands 32bit addresses.

(3.6) binary search is now faster.

(3.6) interface enhancements : CTRL-ENTER and BACKSAPACE allow fast lookups in the viewer. Data Items can now be defined massively. ALT-T and CTRL-T allow fast searches in the list viewers.

(3.6) dozens of minor enhancements.

BUG FIXES & CORRECTIONS

(3.6) data xrefs can now be deleted manually.

(3.6) a bug with jcxz instruction in huge 32bit segments has been fixed.

(3.6) a bug has been fixed in the IDC interpreter: 16bit numbers at page boundaries would be read incorrectly.

(3.6) a laoding problem with some NE files has been corrected.

(3.6) version 3.53 would exit with a "heap corrupt" message when loading a 3.04 database.

(3.6) the loopw instruction was incorrectly disassembled in huge 32-bit segment. This has been corrected.

(3.6) The Borland v5.01 ctime() function has a bug that sometimes caused IDA to crash. This has been fixed.

(3.6) dozens of minor fixes.

New features and bug fixes in version 3.53

Enhancements

• IDA tries the file extensions specified in IDA.CFG in order to open the file to disassemble.
• Ctrl-KB/Ctrl-KH may now be used for block marking/unmarking.
• The name of the file being disassembled is displayed in the title bar of the message window.
• The COFF format handling has been slightly improved.
• The name of the disassembled file is displayed in the "produce output file" dialogs.

Corrections

• The 32-bit IDA versions crashed trying to generate a .MAP file.
• IDA crashed if more than 50 segments were defined in a group (object files)
• The tails of very long names (>32 chars) are displayed in the names list (Ctrl-L) after the addresses column.
• IDA crashed attempting to display xrefs to a very long name (more than 79 characters)
• Object files: a loading error is fixed: in 32-bit object files the self-referenced relocations were resolved incorrectly if a symbol was declared as external and public at the same time.
• IBM PC: the "large" keyword was used when it was not necessary (new versions of TASM issued warning)
• The indicator displayed READY during the creation of an asm/lst output file.