USING: errors gadgets-tracks generic hashtables help io kernel math memory sequences words ;

ARTICLE: "changes" "Changes in the latest release"
{ $heading "Factor 0.83" }
{ $subtopic "First class quotations"
    { $list
        "Support for cons cells and linked lists has been removed from the core language."
        "Quotations are now a first-class array-like type with the same literal syntax that linked lists used to have."
        { "A few quotation construction words such as " { $link curry } ", " { $link unit } " and " { $link alist>quot } " have been moved to the " { $snippet "kernel" } " vocabulary." }
    }
}
{ $subtopic "UI"
    { $list
        "New apropos tool."
        "New word browser tool."
        { "New " { $link track } " gadget replaces the old " { $snippet "splitter" } "; it behaves similarly but supports more than two children." }
        "Key down and key up gestures have been made separate."
        "Window positions and contents are now saved in the image."
        "You can now paste from the clipboard using Control-V (Mac OS) or by middle-clicking (X11)."
        "The UI now uses 2-dimensional rather than 3-dimensional co-ordinates, since the third dimension was never used."
        "Beginnings of an MVC framework taking some cues from functional reactive programming."
    }
}
{ $subtopic "Documentation"
    { $list
        "Better looking markup output."
        "Expanded and improved documentation."
        "Full-text search."
    }
}
{ $subtopic "Mac OS X-specific"
    { $list
        "Factor now runs on Intel-based Macs."
        { "Redesigned Cocoa binding. Messages are now sent via the " { $snippet "->" } " parsing word, for example:"
            { $code "NSObject -> alloc -> init" }
        }
        "Files can be run by dropping them on the Factor icon in the dock"
        { "Services support; if you drop " { $snippet "Factor.app" } " in your " { $snippet "Applications" } " directory, you will be able to evaluate Factor code from other applications." }
        "File->Run command."
    }
}
{ $subtopic "Core language changes"
    { $list
        { "The " { $snippet "reverse-slice" } " word has been removed; call " { $link <reversed> } " instead." }
        { "The " { $link sum } " and " { $link product } " words have been moved into the core." }
        { "New " { $link remove-hash* } " word removes the former value." }
        { "C library interface now features full support for " { $snippet "ushort*" } " UTF-16 strings." }
        { "Restartable errors are now supported; throw them using " { $link condition } ", and invoke restarts in the listener using " { $link :res } "." }
        { { $link with-stream-table } " word for tabular formatting." }
        { "Style stack and associated words such as " { $snippet "format*" } " have been removed in favor of a better abstraction, " { $link with-style } " and " { $link with-stream-style } "." }
    }
}
{ $subtopic "Contributed libraries"
    { $list
        { "There is a new mechanism for loading contributed libraries that correctly handles dependencies; see " { $link "modules" } "." }
        "Factory window manager updates (Eduardo Cavazos)"
        { "New " { $snippet "slate" } " gadget for easier graphical output for simulations and demos. (Eduardo Cavazos)" }
        "Automata and boids demos. (Eduardo Cavazos)"
        { "More concise syntax for variables in " { $snippet "contrib/vars.factor" } ". (Eduardo Cavazos)" }
    }
}
{ $subtopic "HTTP server"
    { $list
        "Improved AJAX outliners in the help responder can now be collapsed."
        { "Files with the " { $snippet ".fhtml" } " extension are run through the " { $snippet "embedded.factor" } " module; snippets of Factor code between " { $snippet "<%" } " and " { $snippet "%>" } " are evaluated and their output intermingled with the HTML text." }
    }
}
{ $heading "Factor 0.82" }
{ $list
    "New code generator framework in compiler"
    "Floating point operations are now open-coded, resulting in a performance gain"
    { "Remove " { $snippet "unswons" } " word" }
    "Implement value type struct inputs to callbacks on AMD64"
    "Fix some Unix I/O bugs"
    "Standard OS X-style menu bar in the Cocoa UI (Kevin Reid)"
    "Objective C methods defined in Factor can now return C structures by value"
}
{ $heading "Factor 0.81" }
{ $subtopic "UI"
    { $list
        "Replaced SDL backend code with Mac OS X (Cocoa), X11 and Windows implementations"
        { "The UI now starts by default under X11 if " { $snippet "$DISPLAY" } " is set" }
        "Multiple windows are now supported"
        "New browser gadget supports history and multiple views of an object"
        "Preferred size cache to speed up gadget layout"
        "Better-looking outliners"
    }
}
{ $subtopic "Help system"
    { $list
        { "Help cross-referencing implemented - the " { $snippet "links-in." } " and " { $snippet "links-out." } " words are analogous to " { $link usage. } " and " { $snippet "uses." } }
        { "New documentation covers development tools and C library interface" }
    }
}
{ $subtopic "Core language"
    { $list
        "Stack underflow and overflow errors are not reported as such, and not generic \"signal 11\" errors (Adam Langley)"
        { "The " { $link standard-combination } " word now takes a stack position, not a picker quotation, and delegation is now supported for words which dispatch on a stack location other than the top" }
        { "New " { $link exchange } " word" }
        { "More useful " { $link heap-stats. } " output now shows count/allocation statistics per-class, instead of per-type" }
        { "Factor now looks for a " { $snippet "factor.image" } " in the same directory as the runtime executable on Mac OS X and Windows, if you don't specify an image name parameter on the command line" }
    }
}
{ $subtopic "Portability"
    { $list
        "Solaris x86 port (Patrick Mauritz)"
    }
}
{ $subtopic "Compiler"
    { $list
        "Compiler no longer splits all branches, reducing compile time and generated code size"
    }
}
{ $subtopic "C library interface"
    { $list
        "Structs can now be passed by value to C functions"
        { "Callbacks from C code to Factor are now supported - see " { $link "alien-callback" } }
        { "Improved support for passing UTF16 strings to and from C functions (" { $snippet "ushort*" } " type)" }
        { "The " { $snippet "BEGIN-ENUM:" } " and " { $snippet "BEGIN-UNION:" } " parsing words have been annexed in favor of new, more consise syntax - see " { $link POSTPONE: C-ENUM: } " and " { $link POSTPONE: C-UNION: } }
    }
}
{ $subtopic "Objective C library interface"
    { $list
        "Objective C classes can now be subclassed"
        "Objective C exceptions are now caught and reported as Factor exceptions"
        "Objective C messages returning structs by value are now supported"
        
    }
}
{ $subtopic "Contributed libraries"
    { $subtopic { "External process interface - " { $snippet "contrib/processes.factor" } }
        { $list "This is a new library" }
    }
    { $subtopic { "Partial continuations - " { $snippet "contrib/partial-continuations.factor" } }
        { $list "This is a new library (Chris Double)" }
    }
    { $subtopic { "HTTP server - " { $snippet "contrib/httpd/" } }
        { $list
            "File responder fixes"
            "Inspector responder fixes"
            "Continuation responder fixes (Chris Double)"
            { "Add templating engine in " { $snippet "embedded.factor" } " (Alex Chapman)" }
        }
    }
    { $subtopic { "XML parser - " { $snippet "contrib/xml.factor" } }
        { $list
            "Various updates for recent Factor changes"
            "Improved XML output capabilities"
        }
    }
    { $subtopic { "Factory window manager - " { $snippet "contrib/factory/" } }
        { $list "Many updates" }
    }
    { $subtopic { "Cryptography library - " { $snippet "contrib/crypto/" } }
        { $list
            "Added Base64 encoding (Doug Coleman)"
            "Added Blum Blum Shub random number generator (Doug Coleman)"
            "Added CRC32 checksum (Doug Coleman)"
        }
    }
    { $subtopic { "Space invaders/Intel 8080 emulator - " { $snippet "contrib/space-invaders/" } }
        { $list
            "Updated to use Factor UI instead of SDL (Chris Double)"
        }
    }
} ;