The Server-Side Patch 12973 is a patch in Age of Empires IV, released on April 11, 2022.
Core units[]
- Mangonel projectile Area of Effect radius reduced from 1.25 to 0.75 tiles
- Ram bonus damage vs Walls increased by +100
- Monk move speed increased from 1 Tiles/s to 1.12 Tiles/s. Monk move speed reduced by 25% while carrying a Relic
Economy[]
- Villagers will no longer be interrupted by attacks while gathering resources
Mongols - 
Khan[]
- Weapon range reduced to 5.5 in Feudal, Castle, and Imperial Age
- Weapon damage reduced from 4 to 3 in the Feudal Age
- Weapon damage reduced from 8 to 6 in the Castle Age
- Melee and ranged armor reduced from 1 to 0 in the Castle Age
Abbasid Dynasty - Camel Archer[]
- Move speed reduced from 1.69 Tiles/s to 1.62 Tiles/s
- Hit points reduced from 175/210/250 to 140/170/200 per Age
Matchmaking[]
- Additional tuning done to the matchmaking system for Quick Match and Ranked queues.
| Wait time | Old Max. ELO Delta | New Max. ELO Delta |
| 1-1.5 min. | 107 | 54 |
| 2-2.5 min. | 241 | 110 |
| 3-3.5 min. | 513 | 173 |
| 4-4.5 min. | N/A | 250 |
| 5-5.5 min. | N/A | 354 |
| 6-6.5 min. | N/A | 560 |
| > 6.5 min. | N/A | 1,320 |
