Dec. 8 2015
Developing class, added reference, inheritance

Dec. 7 2015
Improved TICKS function
Initialized random number seed on start up

Dec. 4 2015
Updated icon
Added structures for class development

Nov. 30 2015
Improved stability for sub routine
Improved error handling with shell

Nov. 26 2015
Raised error for invalid routine usage
Fixed a memory corruption bug when met an invalid routine usage

Nov. 4 2015
Added an mb_raise_error function

Nov. 3 2015
Fixed a memory leak with string manipulation

Oct. 31 2015
Added some mb_value_t initialization helper macros

Oct. 29 2015
Added an mb_get_ref_value function
Improved mb_set_coll

Oct. 28 2015
Added module (namespace) support

Oct. 27 2015
Added an mb_set_import_handler function
Added an mb_init_coll function
Fixed a collection referencing by iterator bug during GC
Fixed an argument detection issue with nil value
Improved stability

Oct. 23 2015
Added public collection manipulation interfaces: mb_get_coll, mb_set_coll, mb_remove_coll, mb_count_coll
Improved usertype by adding size customizable mb_val_bytes_t to the value union
Improved referenced usertype
Fixed a dictionary iterator validation bug
Fixed a wrong identifier parsing bug, thanks to Julien for pointing it out
Added threshold to the memory pool

Oct. 22 2015
Fixed a memory issue in GC, thanks to John and Cybermonkey342 for pointing it out

Oct. 21 2015
Fixed a reference count manipulation bug
Fixed some uninitialized value issues

Oct. 20 2015
Added a SRND statement
Added range support for RND statement
Fixed a wrong processing bug when return in an IF statement chunk
Fixed a scope manipulation bug when evaluating a none parameter routine, thanks to Cybermonkey342 and John for pointing it out
Improved error handling

Oct. 19 2015
Added a sub routine invoking function
Added an mb_get_routine function
Added an mb_eval_routine function
Renamed old mb_ref_value to mb_make_ref_value
Added a new mb_ref_value function
Added an mb_unref_value function

Oct. 15 2015
Added referenced usertype support

Oct. 14 2015
Added garbage collection for referenced objects

Oct. 13 2015
Changed array to referenced type
Fixed a memory pool sorting issue

Oct. 12 2015
Avoided cycle importing
Improved memory pool

Oct. 11 2015
Added a CLONE statement/function for collections
Optimized LIST indexing
Optimized LIST counting

Oct. 10 2015
Improved stability for nested IF statement

Oct. 8 2015
Fixed an iterator validation bug
Fixed an iterator assignment issue
Improved stability, refused nested array inside other collections, and vice versa

Oct. 7 2015
Added non number data comparison
Improved collection stability
Accepted dictionary iterator for VAL statement

Oct. 5 2015
Added a LIST collection
Added a DICT collection
Added TYPE statement
Added an mb_get_type_string function
Fixed a wrong evaluation bug in nested IF statements, thanks to Julien Krief for pointing it out

Sep. 30 2015
Improved UTF8 string manipulation

Sep. 29 2015
Added UTF8 support for string manipulation

Sep. 28 2015
Fixed a compatibility bug with scope meta info, thanks to Cybermonkey342 and John for pointing it out
Improved compatibility with TCC

Sep. 24 2015
Fixed bugs in a recursive sub routine, thanks to John for pointing it out
Fixed identifier lookup bugs
Fixed a memory leak when pushing string arguments

Sep. 22 2015
Added IMPORT statement
Added mb_get_var, mb_get_var_value and mb_set_var_value

Sep. 21 2015
Implemented tail recursion optimization in sub routine
Added array length gain in LEN function
Fixed a crash bug when returning nothing in a sub routine
Polished document

Sep. 20 2015
Added array manipulation ability to script, it's able to assign an array to a variable or use it as a scripting interface argument
Added recursive sub routine support
Fixed a wrong argument detection bug in mb_has_arg

Sep. 18 2015
Fixed a float number parsing bug, thanks to Cybermonkey342 for pointing it out
Added directly expression evaluation shell command

Sep. 17 2015
Allowed string in a boolean expression
Added support for sub routine in PRINT
Fixed a repeated disposing bug when using sub routine

Sep. 16 2015
Added Nil type handling, including assignment, boolean operation, serialization, etc.
Added an MB_CONVERT_TO_INT_LEVEL macro, would convert float to integer as much as possible if this macro was enabled
Polished document

Sep. 11 2015
Added a duplicate sub routine error handling
Added optional argument support for INPUT statement
Fixed a repeated disposing bug of a variable in sub routine
Polished document

Sep. 8 2015
Fixed a type parsing of sub routine bug
Fixed a scope processing bug
Fixed a sub routine invoking bug without leading CALL statement or result receiver
Added a makefile

Sep. 6 2015
Improved sub routine

Sep. 2 2015
Added sub routine type insurance
Prompted more friendly dummy function message
Polished code and document

Sep. 1 2015
Added support for user customized sub routine by DEF/ENDDEF

Aug. 26 2015
Added a memory pool to interpreter shell in main.c

Aug. 25 2015
Allowed a user to define the memory tag data type, unsigned short as default
Added an mb_set_memory_manager function, allows user defined memory management
Added referencable data type size constants

Aug. 11 2015
Fixed a wrong IF trunk processing bug, thanks to irony for pointing it out
Fixed a crash bug with an invalid IF statement

Jul. 27 2015
Fixed a memory leak with mb_pop_xxx, thanks to Daniel Haensse for pointing it out

Jul. 20 2015
Fixed a string manipulation bug

Jul. 12 2015
Added array manipulation functions

Jun. 19 2015
Added an mb_schedule_suspend interface to schedule to suspend the execution

Jun. 15 2015
Fixed a wrong token position marking issue with interactive mode, thanks to Daniel Haensse for pointing it out

May. 6 2015
Removed redundant EOS tokens
Polished data precision related macros

May. 5 2015
Added string type support for non-simple array
Fixed a memory leak when storing strings to a non-string array
Polished data precision related macros

Apr. 27 2015
Added code line inserting/removing to interpreter shell
Changed mb_dispose_value as public

Apr. 23 2015 Version 1.1
Added debug APIs
Added (nestable) multiple line IF statement support

Apr. 15 2015
Added mb_pop_usertype, mb_push_usertype to support user defined type
Polished code
Polished document

Apr. 13 2015
Added mixed integer/float array support
Added warning prompt when passing strings to maths functions
Fixed a memory leak when storing strings in an array
Polished the interpreter commands

Apr. 11 2015
Moved struct mb_interpreter_t from my_basic.h to my_basic.c
Added an mb_has_arg interface to tell whether there is any more argument
Added an MB_ENABLE_SOURCE_TRACE macro to enable or disable source tracing
Disposed parsing context at runtime to reduce memory occupation

Apr. 10 2015
Improved compatibility with PellesC
Fixed a double precision float parsing bug on all 32bit systems, thanks to Pito for pointing it out
Fixed an exponential number parsing bug, thanks to Pito for pointing it out
Fixed a crash bug when a script begins with a meaningless negtive number

Mar. 25 2015
Changed _strupr macro to mb_strupr function
Added an mb_memdup function
Fixed a repeated disposing bug of an intermediate value

Dec. 17 2014
Fixed a calculation crash bug
Fixed a memory leak with intermediate value

Dec. 16 2014
Fixed a negative calculation bug in a function argument

Dec. 9 2014
Improved compatibility with BCB

May. 25 2014
Added an mb_set_inputer function which allows a user to specify an INPUT reader, thanks to Michael P. Welch for suggestion
Added an mb_remove_reserved_func function which allows a user to disable/remove a reserved statement

May. 22 2014
Fixed a crash bug when missing colon in a combined line, thanks to Michael P. Welch for pointing it out
Fixed a missing lexical cursor stepping bug in INPUT statement

Mar. 17 2014
Added an XCode project
Added a safe stdin reader function mb_gets
Fixed a crash bug in INPUT statement

Feb. 17 2014
Added mod by zero processing

Feb. 16 2014
Fixed a crash bug in _core_for, thanks to mummylauncher for pointing it out

Jul. 19 2013
Fixed a crash bug in _execute_statement, thanks to Jon Mayo for pointing it out

Feb. 25 2013
Fixed a cross routine multiple statement execution bug, thanks to Bruce Kendall for pointing it out
Fixed a memory corruption bug when loading a script file

Jan. 9 2013
Fixed a crash bug when using EDIT command

Dec. 14 2012
Added an invalid expression error handling
Added an out of memory error handling

Dec. 5 2012
Fixed a minus calculation bug, thanks to Bill Walker for pointing it out

Nov. 14 2012
Fixed a cross routine RETURN bug, thanks to Bruce Kendall for pointing it out

Sep. 12 2012
Fixed a bug in ASC
Fixed a label parsing, jumping bug, thanks to Ahmad Hawwash for pointing above two issues out
Fixed a crash bug in IF statement
Added divide by zero processing
Added calculation error raising

Sep. 1 2012
Fixed a redisposing bug when retrieving a string argument, thanks to Ahmad Hawwash for pointing it out
Fixed a memory leak after retrieving a composited string argument

Aug. 29 2012
Modified an odd string comparison behavior, thanks to Matthias Nott for testing it out
Added a warning system, disabled warning as default
Improved compatibility with GCC

Aug. 3 2012
Implemented memory occupation statistics
Improved compatibility on 64bit systems
Fixed some warnings under a stricter mode

Jul. 21 2012
Added a compatibility macro for PRINT a newline
Added an mb_attempt_func_end C API
Fixed a unary minus symbol parsing bug

Jul. 19 2012
Fixed a crash bug caused by a mistake in calculation priority table, thanks to Bruce Kendall for pointing it out

Jul. 10 2012
Implemented KILL command
Fixed a negative calculation bug
Added an invalid identifier usage error handling
Avoided some warnings on gcc

Jul. 5 2012
Implemented LIST, EDIT, LOAD, SAVE commands

Jul. 4 2012
Fixed some crash bugs
Fixed some memory leaks

Jul. 3 2012
Modified/added math functions: FLOOR, CEIL, FIX
Fixed an INPUT type issue
Changed float number formatting from using "%f" to "%g" in PRINT, thanks to Bruce Kendall for pointing above three issues out
Refactored the way to load a script file
Done several small improvements

Jun. 29 2012
Fixed a newline mistake in PRINT

Jun. 29 2012
Implemented customizable print functor
Improved PRINT statement
Fixed an infinity loop bug in RND function
Fixed some crash bugs

Jun. 28 2012
Fixed a cross routine RETURN bug, thanks to Bruce Kendall for pointing it out
Fixed some memory leaks
Refactored error position informing

Jun. 18 2012
Implemented user extended abort, thanks to Bruce Kendall for giving suggestion

Apr. 30 2012
Compress number to integer if necessary

Apr. 27 2012
Fixed a string connecting crash bug, thanks to Ahmad Hawwash for pointing it out
Improved portability on gcc

Aug. 3 2011
Fixed hashtable removing bug

Jun. 18 2011
Fixed some mistakes
Allowed underline character appear in an identifier

Apr. 15 2011
Fixed garbage collection and _label_t disposing bugs

Apr. 14 2011
Fixed some list/comparison operator bugs

Feb. 15 2011
Improved portability on Cocoa
Improved portability on VC++ 6.0
Fixed a suspend/resume bug

Feb. 9 2011
Fixed struct mb_interpreter_t declaration warnings on gcc

Feb. 1 2011 Version 1.0
First release.