Before download: Use your '''old version of Gramps''' to [[How_to_make_a_backup#GRAMPS_version_3.3_and_later|backup]] your Family Trees [[#1|[1]]].
<big><u>[http://sourceforge.net/projects/gramps/files/Stable/{{version_windows_AIO32}}/{{filename_windows_AIO32}}.exe Windows Installer (32-bit){{version_windows_AIO32}}]</u>
<u>[http://sourceforge.net/projects/gramps/files/Stable/{{version_windows_AIO64}}/{{filename_windows_AIO64}}.exe Windows Installer (64-bit){{version_windows_AIO64}}]</u></big>
After download: double-click to install Gramps.
Normally, when you try to load your old Family Tree you can allow it to be upgraded if necessary, and it will be opened. However if this fails for any reason, '''Create''' a new Family Tree and '''Import''' the back-up into this new Tree.
Alternative independent MS Windows version [[#3|[3]]].
== Mac OS X ==