By setting a bookmark on RecentChanges you can easily see what has been changed since your last visit.

2011-12-25
[DIFF] Federico Ponce De Leon 16:17 Info FedericoPonceDeLeon terminó la cursada
[DIFF] BadContent 16:17 Info Antispam subsystem
2011-12-12
[DIFF] es/Alojamiento/Clarisse_Claire 02:38 Info AgustinParadiso [1-2] #01 mejore un poco el aspecto de la pagina
#02 agrego alojamiento ofrecido por Clarisse y Claire
[DIFF] es/Alojamiento 02:35 Info AgustinParadiso agrege alojamiento ofrecido por Clarisse y Claire
2011-09-18
[DIFF] CamilaHobus 06:30 Info CamilaHobus
2011-09-17
[DIFF] AmigosGroup 15:05 Info FedericoPonceDeLeon permisos de lectura
2011-09-12
[DIFF] es/Lista De Distribucion 13:35 Info FedericoPonceDeLeon [1-2] #01 más espacio al final del artículo
#02 cosas importantes a tener en cuenta
2011-09-09
[DIFF] es/Actividades/Modelos/Fin De Delta/novedades 17:52 Info FedericoPonceDeLeon Upload of attachment 'AlquilerCasaTigre.o ds'.
2011-09-04
[DIFF] es/Turismo 01:40 Info FedericoPonceDeLeon auto-link a sub-secciones

[DIFF]

marks older pages that have at least one backup version stored (click for an author diff)

[UPDATED]

marks pages edited since you set your bookmark (click for a bookmark diff)

[NEW]

marks pages created since you set your bookmark, and were not edited after creation

[DELETED]

marks page deletions

[RENAMED]

marks page renames

[CONFLICT]

An editing conflict happened, please resolve it by merging both versions of the problematic paragraphs together.