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Changes with melon 2.8.1                                          10 Oct 2023
    *) Fixed bug in log module
    *) Fixed return value check in fork module
    *) Update type conversion
    *) Added level colour to log
    *) Updated log timezone to UTC
    *) Added github workflows to build and publish docker images and generate docs
    *) Refactored json module
    *) Fixed fork bug of framework
    *) Fixed bugs in rbtree macros
    *) Renamed defs to utils
    *) Supported module selective compilation
    *) Refactored configure
    *) Added a macro for mmap detection
    *) Added a parameter to configure to control macros
    *) Optimized matched results in regular expression
    *) Updated docs

Changes with melon 2.8.0                                          02 Sep 2023
    *) Updated configure to support more parameters and OS environment
    *) Fixed the bug of iothread msg
    *) Fixed env bug in lexer init
    *) Created CODE_OF_CONDUCT.md
    *) Updated callback pointers in rbtree and fheap to avoid compiler's warning
    *) Fixed log path bug
    *) Added tostring function and init macro to bignum for debugging
    *) Renamed core module to framework module
    *) Added assert macro for debugging
    *) Updated init function prototype for melang import api
    *) Updated the log module so that it can be used regardless of whether it is initialized or not
    *) Updated the conf module to make sure it will be initialized only once even init function called multiple times
    *) Removed log from connection, event, thread pool, garbage collection and memory pool modules
    *) Fixed bug of reed-solomon module
    *) Optimized framework initialization
    *) Updated docs

Changes with melon 2.7.1                                          08 Aug 2023
    *) Updated configuration directives
    *) Updated functions' name of conf module
    *) Updated functions' name of json module
    *) Updated functions' name of log module
    *) Updated functions' name of prime module
    *) Updated functions' name of connection module
    *) Updated functions' name of file module
    *) Updated functions' name of fork module
    *) Updated functions' name of asn1 module
    *) Updated functions' name of http module
    *) Updated functions' name of rbtree module
    *) Fixed import bug in melang
    *) Optimized red-black tree performance
    *) Optimized fibonacci heap performance
    *) Fixed nonnull error of event module
    *) Updated docs

Changes with melon 2.7.0                                          31 Jul 2023
    *) Optimized melang performance
    *) Optimized configuration directives
    *) Optimized queue performance
    *) Fixed path and tool compilation errors
    *) Optimized AES performance
    *) Optimized JSON performance
    *) Optimized MD5 performance
    *) Optimized SHA performance
    *) Fixed script variable name bug
    *) Fixed empty script task bug
    *) Fixed configuration segment fault
    *) Added base directory character in directive 'include' of lexer
    *) Updated docs

Changes with melon 2.6.5                                          02 Feb 2023
    *) Upgraded array component
    *) Optimized pipe send of melang
    *) Optimized core component
    *) Optimized multi-process framework
    *) Optimized multi-thread framework
    *) Added pipe receive feature to melang
    *) Updated docs

Changes with melon 2.6.4                                          21 Jan 2023
    *) Updated and optimized rbtree, fib-heap and hash components
    *) Optimized trace component for trace mode
    *) Added array structure
    *) Updated docs

Changes with melon 2.6.3                                          17 Jan 2023
    *) Updated trace module
    *) Updated Dockerfile
    *) Update red-black tree module
    *) Added doubly linked list

Changes with melon 2.6.2                                          30 Dec 2022
    *) Updated naming convention for functions in event module
    *) Fixed error in configuration module
    *) Supported Docker
    *) Optimized Melang performance
    *) Supported Webassembly

Changes with melon 2.6.1                                          30 Nov 2022
    *) Upgraded trace component
    *) Added function pointer 'update' to configuration item structure
    *) Optimized environment variable settings in lexer and lang component
    *) Updated melang naming convention
    *) Updated internal functions' name in Melang
    *) Fixed bug of lang cache path
    *) Updated docs

Changes with melon 2.6.0                                          22 Nov 2022
    *) Fixed bug of lang pipe send function
    *) Optimized callback function about lang task exit
    *) Optimized string macros
    *) Added trace mode
    *) Fixed bug of lang cache path
    *) Updated Melang naming convention for global name
    *) Updated internal functions name in Melang

Changes with melon 2.5.6                                          20 Nov 2022
    *) Removed no-use macro
    *) Optimized  log component
    *) Optimized melang pipe
    *) Fixed bug of melang pipe
    *) Fixed Kqueue bug
    *) Optimized timer event
    *) Added timer cancellation function

Changes with melon 2.5.5                                          17 Nov 2022
    *) Removed no-use macros
    *) Optimized log component
    *) Updated log docs

Changes with melon 2.5.4                                          14 Nov 2022
    *) Fixed bug of error component
    *) Added functions in C and Melang to send message from c to script
    *) Updated docs

Changes with melon 2.5.3                                          03 Nov 2022
    *) Optimize melang performance
    *) Update import function of melang
    *) update logo
    *) Updated naming conventions of hash, rbtree, queue, stack and fork components
    *) Optimize argument of iterate function in rbtree
    *) Added macros for getting user data from fheap and rbtree nodes
    *) Updated docs
    *) Added error component

Changes with melon 2.5.2                                          29 Sep 2022
    *) Upgraded iothread
    *) Optimized lang lock
    *) Updated functions in lang
    *) Fixed event bugs
    *) Fixed memory pool bug in lang

Changes with melon 2.5.1                                          23 Sep 2022
    *) Fixed event bugs
    *) Optimized event
    *) Updated functions of lang
    *) Fixed bugs of lang
    *) Added eval as an internal function of melang

Changes with melon 2.5.0                                          16 Sep 2022
    *) Updated rbtree functions
    *) Optimized iothread
    *) Upgraded event to support multi-thread
    *) Fixed select error on Windows
    *) Upgraded Melang to enable tasks to execute across threads
    *) Fixed event break
    *) Updated docs

Changes with melon 2.4.1                                          04 Sep 2022
    *) Updated configure shell
    *) Added iothread component
    *) Updated docs

Changes with melon 2.4.0                                          28 Aug 2022
    *) Optimized memory pool to support hierarchical pool
    *) Optimized configuration processing
    *) Updated fib-heap to support memory pool
    *) Updated spinlock
    *) Optimized core library, moved melang library to repository Melang
    *) Fixed dlopen memory bug in melang import function
    *) Added new function in script interpreter
    *) Updated docs
    *) Added English docs

Changes with melon 2.3.4                                          18 Aug 2022
    *) Added parent pool for memory pool component
    *) Upgraded mln_import to have a return value in script layer
    *) Added master processing handle for multi-process framework
    *) Updated docs

Changes with melon 2.3.3                                          19 May 2022
    *) Added more path hook
    *) Added log hook
    *) Fixed JSON bug
    *) Fixed file name bug in melang error tips
    *) Added string trim, upper, lower and join
    *) Updated docs

Changes with melon 2.3.2                                          29 Apr 2022
    *) Fixed warnings on gcc 11.x and mingw
    *) Added path hook
    *) Added log hook
    *) Updated docs

Changes with melon 2.3.1                                          18 Apr 2022
    *) Fixed warning on Win32
    *) Fixed fib-heap bug
    *) Updated docs

Changes with melon 2.3.0                                          14 Apr 2022
    *) Fixed json bugs
    *) Fixed melang msgqueue bugs
    *) Fixed cron bugs
    *) Fixed melang exec bug
    *) Fixed melang GC bug
    *) Fixed event bug
    *) Fixed dup warning
    *) Optimized string slice
    *) Updated for win32
    *) Updated naming convention
    *) Updated melang function call syntax
    *) Added dynamic library import to melang
    *) Updated red-black tree release order
    *) Fixed file descriptor leak in melang
    *) Optimized melang co-routine memory overhead
    *) Optimized memory pool
    *) Optimized multi-thread mode
    *) Optimized IPC handler register
    *) Updated docs

Changes with melon 2.2.2                                          14 Aug 2021
    *) Add array diff and key diff in melang
    *) Add shell command execution function in melang

Changes with melon 2.2.1                                          11 Aug 2021
    *) Update and add some time functions
    *) Add cron format expression parser
    *) Add functions for operating time, cron and directory in melang

Changes with melon 2.2.0                                          14 May 2021
    *) Fix bugs
    *) Add Github Pages docs
    *) Add operator overloading in melang
    *) Add closure in melang

Changes with melon 2.1.0                                          02 Feb 2021
    *) Optimized melang performance
    *) Fixed melang bugs
    *) Added shared memory
    *) Updated License

Changes with melon 2.0.2                                          13 Apr 2020
    *) Optimized file function in melang
    *) Added functions for operating directoies in melang
    *) Supported variable arguments in melang
    *) Updated License

Changes with melon 2.0.1                                          11 Mar 2020
    *) Added message queue and topic in melang
    *) Fixed melang and fib-heap bugs

Changes with melon 2.0.0                                          08 Mar 2020
    *) Added UDP module in melang
    *) Updated print function for array in melang

Changes with melon 1.9.2                                          06 Mar 2020
    *) Added TCP module in melang

Changes with melon 1.9.1                                          03 Mar 2020
    *) Added eval function in melang
    *) Dropped melang's tcp functions

Changes with melon 1.9.0                                          01 Mar 2020
    *) Added MySQL module in script language
    *) Fixed file bugs in script language
    *) Added more sys-module functions for melang

Changes with melon 1.8.0                                          30 Sep 2019
    *) Updated Melang's productions

Changes with melon 1.7.0                                          20 Aug 2018
    *) Supported TCP network for melang

Changes with melon 1.6.12                                         14 Jul 2018
    *) Fixed some bugs in melang
    *) Supported Reactive Programming in melang

Changes with melon 1.6.11                                         03 Feb 2018
    *) Update License
    *) Add some basic functions for script language

Changes with melon 1.6.10                                         03 Aug 2017
    *) Added function to getting array length for melang script.
    *) Fixed some bugs for melang script.
    *) Supported adding property dynamically.

Changes with melon 1.6.9                                          01 Aug 2017
    *) Added reflection for melang script.
    *) Updated Red-Black Tree interfaces.
    *) Fixed a bug of keyword 'return' in melang script.
    *) Dropped keyword 'set' from melang script.
    *) Added garbage collector.

Changes with melon 1.6.8                                          22 May 2017
    *) Added script functions about matrix.

Changes with melon 1.6.7                                          20 May 2017
    *) Fixed some bugs of JSON.
    *) Added script functions about JSON.

Changes with melon 1.6.6                                          18 May 2017
    *) Added script function about Base64.
    *) Added script functions about DES, 3DES.
    *) Added script function about MD5.
    *) Added script functions about SHA1, SHA256.
    *) Added script function about RC4.
    *) Added script function about Prime Generator.

Changes with melon 1.6.5                                          17 May 2017
    *) Added script function about AES.

Changes with melon 1.6.4                                          16 May 2017
    *) Updated Lang component.
    *) Added Set of file of melang.
    *) Updated interfaces of string of melang.
    *) Fixed a bug in interface print of melang.
    *) Updated a macro in defs component.

Changes with melon 1.6.3                                          13 May 2017
    *) Updated Lang component.
    *) Fixed some bugs about Lang component.
    *) Added some melang functions for string.

Changes with melon 1.6.2                                          07 May 2017
    *) Added FEC component.
    *) Added Reed-Solomon Code component.
    *) Added Matrix component.
    *) Updated some macros.

Changes with melon 1.6.1                                          14 Apr 2017
    *) Dropped malloc/free library -- salloc.
    *) Fixed a bug in melang.
    *) Dropped some source files.
    *) Added a new component -- core.
    *) Made framework to be a library.

Changes with melon 1.6.0                                          12 Feb 2017
    *) Added Lang component to execute script AST.
    *) Added Lang components of all data types.
    *) Updated string component.
    *) Updated log component.
    *) Updated event component.
    *) Updated shell script 'configure'.
    *) Dropped useless directory.
    *) Added new directory for function development of melang.

Changes with melon 1.5.12                                         23 Dec 2016
    *) Updated AST component.

Changes with melon 1.5.11                                         11 Dec 2016
    *) Updated production in AST component.
    *) Modified interface to get information from thread pool.

Changes with melon 1.5.10                                         08 Dec 2016
    *) Fixed bugs of parser generator.
    *) Added an interface for thread pool.
    *) Added a new component of AST.

Changes with melon 1.5.9                                          18 Nov 2016
    *) Optimized lex component.
    *) Fixed bugs of parser generator.

Changes with melon 1.5.8                                          06 Nov 2016
    *) Added thread pool component.
    *) Updated shell script 'configure'.

Changes with melon 1.5.7                                          27 Oct 2016
    *) Added a parameter for script 'configure' to specify
       the target binary file name.
    *) Updated log component to support logging type 'mln_string_t'.
    *) Fixed a mistake in parser generator component.

Changes with melon 1.5.6                                          23 Oct 2016
    *) Updated lex component, support preprocessing.
    *) Updated parser generator.
    *) Updated configuration component to support preprocessing.
    *) Updated stack component.
    *) Updated misc tool functions.

Changes with melon 1.5.5                                          15 Oct 2016
    *) Fixed an error of ASN.1.

Changes with melon 1.5.4                                          15 Sep 2016
    *) Added ASN.1 component.
    *) Updated RSA component.
    *) Updated Tool component.
    *) Updated Log component.
    *) Fixed a bug of parsing timestamp.
    *) Updated Hash component.
    *) Updated Fork component.
    *) Fixed macro names in Parser generator component.
    *) Updated String component and relevant components.
    *) Updated Event component.
    *) Updated Bignum component.
    *) Modified Chain component.
    *) Modified Connection component.
    *) Optimized Conf component.
    *) Optimized File cache component.
    *) Optimized Thread component.
    *) Optimized Parser generator component.

Changes with melon 1.5.3                                          28 Jun 2016
    *) Added some interfaces for RSA
    *) Added some interfaces for Big number.

Changes with melon 1.5.2                                          20 May 2016
    *) Added SHA256.

Changes with melon 1.5.1                                          17 May 2016
    *) Normalized many functions' name.
    *) Fixed a bug of timestamp in log.

Changes with melon 1.5.0                                          14 May 2016
    *) Added two interfaces for HTTP.
    *) Added websocket.

Changes with melon 1.4.3                                          02 May 2016
    *) Added an interface of hash table.

Changes with melon 1.4.2                                          25 Apr 2016
    *) Optimized calculation of Big Number.
    *) Fixed some bugs of Big Number and HTTP.

Changes with melon 1.4.1                                          20 Apr 2016
    *) Optimized division of Big Number.
    *) Fixed some bugs of Big Number.

Changes with melon 1.4.0                                          09 Apr 2016
    *) Added Big Number.
    *) Added MD5.
    *) Added SHA1.
    *) Added DES and 3DES.
    *) Added RC4.
    *) Added AES.
    *) Added Base64.
    *) Added RSA.

Changes with melon 1.3.6                                          14 Dec 2015
    *) Supported json (not rely on any libraries).
    *) Reconstructed HTTP component.
    *) Optimized Hash component and added some new functions.
    *) Fixed a bug of file cache.

Changes with melon 1.3.5                                          22 Nov 2015
    *) Supported regular expression (not rely on PCRE).

Changes with melon 1.3.4                                          11 Nov 2015
    *) Removed some interfaces of connections.
    *) Added some new interface for connections.
    *) Fixed a bug of inter-thread communication.
    *) Optimized inter-process communication.
    *) Optimized inter-thread communication.

Changes with melon 1.3.3                                          06 Nov 2015
    *) Fixed some bugs of parsing HTTP protocol.
    *) Added an interface for HTTP protocol.
    *) Added an interface for TCP connection.

Changes with melon 1.3.2                                          22 Oct 2015
    *) Added one interface for the communication
       between master process and worker process.
    *) Added some interfaces for getting socket
       file descriptor of tcp connection.
    *) Added some interfaces for testing whether the
       chains are empty.
    *) Added a boot parameter for stop melon service.

Changes with melon 1.3.1                                          20 Oct 2015
    *) Fixed a bug of event component.
    *) Added a configuration command for log path.
    *) Added a boot parameter for reload configuration.

Changes with melon 1.3.0                                          17 Sep 2015
    *) Added a log level (Warn).
    *) Added two configuration command (max_nofile and
       core_file_size).
    *) Added an new interface in mln_hash.c for changing value
       (mln_hash_change_value()).
    *) Added HTTP components.

Changes with melon 1.2.8                                          14 Sep 2015
    *) Added a memory pool.
    *) Added a change structure.
    *) Added a buffer structure.
    *) Added another implementation of tcp I/O.
    *) Added some interfaces of string.
    *) Added an implementation of file cache.

Changes with melon 1.2.7                                          29 Jul 2015
    *) Fixed some bugs about lock.

Changes with melon 1.2.6                                          27 Jul 2015
    *) Fixed some bugs of salloc.

Changes with melon 1.2.5                                          20 Jul 2015
    *) Optimized the initialization of boot parameters.
    *) Optimized the initialization of log and daemon.
    *) Fixed Makefile not to overwrite configuration file.
    *) Deleted the shell script code which created user 'melon'.
    *) Added configuration item for changing user.

Changes with melon 1.2.4                                          03 Jul 2015
    *) Modified shell script 'configure'.
    *) Modified the input arguments of KMP algorithm.
    *) Modified the prototype of function 'mln_conf_set_hook'.
    *) Added an interface 'mln_conf_unset_hook' to unset a
       callback handler which is indicated by the argument.

Changes with melon 1.2.3                                          10 May 2015
    *) Modified configuration's data structures.
    *) Added an interface for reloading configurations.
    *) Modified the interface form of 'mln_tcp_connection_set_buf'.
    *) Modified the interface form of 'mln_event_set_fd'.
    *) Added two marcos for fd-event timeout.
    *) Added an interface for setting fd-event timeout handler.
    *) Added an interface for breaking out of 'mln_dispatch()'.
    *) Added an interface for setting an callback routine in
       'mln_dispatch()'.
    *) Modified some interfaces' implementation in event module.
    *) Added an interface for visiting every worker process node
       and processing the node with a specified fd-event handler.
    *) Added an interface for visiting every data in hash table
       and processing the data with a specified function.
    *) Modified the macro interface form of 'MLN_DEFINE_TOKEN()'.
    *) Modified log data structures.
    *) Added an interface for reloading log configurations.
    *) Modified the format of log message.
    *) Added a new feature -- a LALR(1) Parser Generator.
    *) Added a new data structure module -- mln_queue.
    *) Added a new data structure module -- mln_stack.
    *) Added a new function 'mln_init_all_resource()' for
       initializing some essential resources.
    *) Added a new function 'mln_worker_process()' for
       writing worker process routine.
    *) Added a marco to judge whether the return value of
       'mln_rbtree_search()' is NULL.
    *) Added an interface for visiting every red-black tree node
       and processing the node with a specified function.

Changes with melon 0.8.1                                          01 Mar 2015
    *) The first public version.