Differences between SharePoint 2013 and SharePoint 2010

SharePoint 2013	SharePoint 2010
What is SharePoint 2013 (Preview) - A new version of Microsoft famous Collaboration portal called SharePoint. The version adds few new exciting features such as Social Feed, SharePoint Apps, and cross-site publishing.	What is SharePoint 2010 - It is a previous or I should say the current version of SharePoint that was released in the year 2010.
Development Changes – In SharePoint 2013 Microsoft Introduced a new Cloud App Model for designing Apps for SharePoint. Apps for SharePoint are self-contained pieces of functionality that extend the capabilities of a SharePoint website. You can use HTML, CSS, JavaScript, and protocols like the Open Data protocol (OData), and OAuth to communicate with SharePoint using Apps. Tools – SharePoint 2013 has Introduced New Tools for App development. Visual Studio 2012 now lets you develop apps for SharePoint and apps for Office. In addition, new web-based tools called “Napa” Office 365 Development Tools were introduced for developing apps. No more Sandbox solutions. SharePoint 2013 sandboxed solutions are deprecated. So, all we got is the New App model and the Old SharePoint Farm solutions. check out SharePoint 2013 – Apps Vs Farm solutions	Development Changes – SharePoint 2010 Introduced Sandbox solutions to help developers deploy code that did not affect the whole farm. In SharePoint 2010 you could use Server Object model and Client Object model (.Net Managed, ECMAScript and Silverlight) to extract data from SharePoint. In SharePoint 2010 developers were also developing Farm solutions as they did with the previous SharePoint 2007 version.
Social and Collaboration features –  Microsoft in SharePoint 2013 Introduced new Social capabilities for better collaboration in the company.New Features added are - Interactive feed Community Site Follow people Follow Sites	Social and Collaboration features - SharePoint 2010 had very few social capabilities. My sites Tags and Tag profile pages Notes
Search - SharePoint 2013 includes several enhancements, custom content processing with the Content Enrichment web service, and a new framework for presenting search result types. Some of the features added are – Consolidated Search Results Rich Results Framework keyword query language (KQL) enhancements	Search – SharePoint 2010 had Introduced Integrated FAST search as an Enterprise search. In addition to this build-in SharePoint search is still widely used in companies.
Enterprise Content Management (ECM) - SharePoint 2013 added some of the best capabilities of an ECM software. The newly added stuff is Design Manager Managed Navigation Cross-site Publishing EDiscovery	Enterprise Content Management(ECM) -SharePoint 2010, on the other hand, had Introduced Managed metadata and taxonomy as a part of new ECM benefits for SP 2010. This version did not have Managed Navigation and Cross-site Publishing. SharePoint designer was a primary tool to modify Master pages instead of the new Design Manager.