You need to download and install all three packages fpc, fpc-src and lazarus. fpc - the Compiler, some command line tools, base units and non visual components like database access fpcsrc - the sources of fpc and its packages, needed for code browsing lazarus - the IDE, visual components and help files * For an overview what changed from previous 2.0 versions (includes incompatibilities with earlier versions) see: - http://wiki.lazarus.freepascal.org/Lazarus_2.0_fixes_branch * For an overview what changed from previous 1.8 versions (includes incompatibilities with earlier versions) see: - http://wiki.freepascal.org/Lazarus_2.0.0_release_notes - http://wiki.lazarus.freepascal.org/User_Changes_3.0.4 - http://wiki.freepascal.org/FPC_New_Features_3.0 * Checksums can be found at http://www.lazarus-ide.org/index.php?page=checksums * For additional information visit our homepage, forum, wiki, and FAQ: -- http://www.lazarus-ide.org/ -- http://wiki.lazarus.freepascal.org/Installing_Lazarus_on_MacOS_X -- http://forum.lazarus.freepascal.org/ -- http://wiki.lazarus.freepascal.org/Lazarus_Faq