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+== Update procedure ==
+
+If you cloned the repository as suggested, updating and downgrading is easy:
+
+{{{
+cd wiki
+git pull
+cd data
+git pull
+}}}
+
+to switch to a different version of GeekiGeeki:
+
+{{{
+git checkout {tree-ish}
+}}}
+
+where ##{tree-ish}## could be a tag, a branch name, or a specific commit.