As DC transitioned to a new Superman, Superman #226 (April, 2006), Action Comics #836 (April, 2006) and Adventures Of Superman #649 (April, 2006) wander through the life of the original Superman, and his time with Lois, as a set up to what happened in Infinite Crisis #5 (April, 2006)...and beyond, where a new Superman and Lois would take over.
Superman #226 and Action Comics #836
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Adventures Of Superman #649 and Infinite Crisis #5
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Here, Superman's life from Action Comics #1 (June, 1938) to the time JSA member Kal-L, his wife Lois, the new Earth-Prime Superboy and Alexander Luthor left in Crisis On Infinite Earths #12 (March, 1986)...to come back for the Infinite Crisis.