This user script clean iOS 8 API diff page (https://developer.apple.com/library/prerelease/ios/releasenotes/General/iOS80APIDiffs/index.html)

cleanup_ios8_api_diff.user.js

// ==UserScript==
// @name         cleanup_ios8_api_diff
// @namespace    cleanup_ios8_api_diff
// @include      https://developer.apple.com/library/prerelease/ios/releasenotes/General/iOS80APIDiffs/index.html*
// @author       taichino
// @description  This userscript cleanup API diff
// ==/UserScript==

(function() {

    var main = function() {
        var getSymbolName = function(symbolElem) {
            var symbolName;
            var anchor = symbolElem.getElementsByTagName('a')[0];
            if (anchor) {
                symbolName = anchor.innerHTML.trim();
            }
            else {
                var children = symbolElem.childNodes;
                symbolName = children[children.length-2].nodeValue.trim();
            }
            return symbolName;
        };

        var getPropertyName = function(methodName) {
            var res = methodName.replace(/[\-\[\]]/g, ''); // remove '-', '[' and ']' from symbolName
            res = res.replace(' ', '.');
            return res;
        };

        var addedSymbolsNum = 0;
        var removedSymbolsNum = 0;
        Array.prototype.forEach.call(document.getElementsByClassName('headerFile'), function(file) {
            var added = file.querySelectorAll('div.added')[0];
            var removed = file.querySelectorAll('div.removed')[0];
            var modified = file.querySelectorAll('div.modified')[0];

            if (modified) {
                modified.parentNode.removeChild(modified);
            }
            if (added && removed) {
                // clean up properties
                var addedProperties = {};
                Array.prototype.forEach.call(added.getElementsByClassName('symbolName'), function(addedSymbol) {
                    var symbolName = getSymbolName(addedSymbol);
                    if (symbolName.search('.') >= 0) {
                        addedProperties[symbolName] = addedSymbol;
                    }
                });
                
                Array.prototype.forEach.call(removed.getElementsByClassName('symbolName'), function(removedSymbol) {
                    var symbolName = getSymbolName(removedSymbol);
                    if (symbolName.search(':') == -1) {
                        var propName = getPropertyName(symbolName);
                        var addedSymbol = addedProperties[propName];
                        if (addedSymbol) {
                            addedSymbol.parentNode.removeChild(addedSymbol);
                            removedSymbol.parentNode.removeChild(removedSymbol);
                        }
                    }
                });
            }
            var symbols = file.getElementsByClassName('symbolName');
            if (symbols.length == 0) {
                file.parentNode.removeChild(file);
            }

            added = file.querySelectorAll('div.added')[0];
            removed = file.querySelectorAll('div.removed')[0];
            if (added) {
                addedSymbolsNum += added.getElementsByClassName('symbolName').length;
            }
            if (removed) {
                removedSymbolsNum += removed.getElementsByClassName('symbolName').length;
            }
        });
        console.log("added:" + addedSymbolsNum + ", removed:" + removedSymbolsNum);
    };

    var t = 0;
    var timer = setInterval(        
        function() {
            main();
            t += 1;
            if (t > 5) {
                clearInterval(timer);
            }
        },
        1000);
    
})();