San Miguel Philippines Centennial Edition

San Miguel is of course everywhere in the Philippines, with these little brown bottles commonplace around here. But this afternoon, I noticed a few small words printed on the neck of this bottle that I hadn't seen before: "Philippines Centennial Edition." Seeing how the country gained independence from Spain in 1898, did that mean that this bottle of beer was brewed for consumption in 1998? I can only assume that it was just an old bottle that was re-used, as the beer tasted just fine, and in fact arguably better than some of the stuff that I've had overseas.