Deleted clans are now styled differently than active clans:
One neat thing about this is that it provides a new perspective when looking at historical results (currently the only place deleted clan names can appear). For example, did you know that of the 84 clans that finished the game's first official month (July 2011), a mere 6 still exist?
As an extra bonus, deleted clans also now have simple profile pages listing their historical results. If you don't remember, until now, navigating to a deleted clan resulted in an error.
Are you wondering why you can't find your old clan? Data was backfilled with historical clan results. This means that if your clan was deleted the same month it was created, it was not backfilled. Going forward, all clan names will be archived.
And finally, why make this change? With tournaments coming soon, there will be an additional place that deleted clan names can appear: historical tournament results. The primary motivation for this change was to clean up how deleted clan names are stored in the database, specifically so that handling them in historical tournament results would be cleaner. The player-visible changes I pointed out are just some now-low-hanging fruit that were made accessible by said changes.
Enjoy!