| January 2009 |
| 16/01/09 | The alliance LTCAT (today: UDI CAT) was founded. |
| Founding members::  catacomba, General Marc, Cabrerenc, oscarcom, llebra, arale, Entrameliat, joanbruch, puca, mafalda and jajoh. |
| Leaving of:arale Entrameliat joanbruch puca and mafalda. |
|  The alliance reaches a population more than 5,000. |
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| 17/01/09 | The alliance is now known as CAT. |
| Joining of:sempremés and josechuu. |
| Leaving of:sempremés. |
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| 18/01/09 | Joining of:seiyathesinx. |
| Leaving of:catacomba. |
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| 19/01/09 | Leaving of:llebra. |
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| 20/01/09 | Joining of:menda. |
| Leaving of:oscarcom. |
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| 21/01/09 | The alliance is now known as UDI CAT. |
| Joining of:bdn, anianiol, zachar and tipeen!. |
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| 22/01/09 | Joining of:albert5. |
| Leaving of:bdn. |
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| 23/01/09 | Joining of:aguila11, GEROSE and Chewaka. |
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| 24/01/09 | Joining of:93javi and fabian. |
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| 25/01/09 | Leaving of:fabian. |
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| 27/01/09 | Joining of:Ferranp. |
| Leaving of:menda. |
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| 29/01/09 | Joining of:Carles98. |
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| 30/01/09 | Leaving of:Cabrerenc. |
| February 2009 |
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| 02/02/09 | Joining of:machine46. |
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| 07/02/09 | Leaving of:machine46. |
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| 11/02/09 | Deletion of:anianiol. |
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| 13/02/09 | Leaving of:zachar and 93javi. |
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| 15/02/09 | Deletion of:Chewaka. |
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| 19/02/09 | Leaving of:GEROSE. |
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| 20/02/09 | Deletion of:aguila11 and Carles98. |
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| 23/02/09 | Leaving of:albert5. |
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| 24/02/09 | Leaving of:tipeen!. |