Update README.md

Author: HybridsEgo

docs/README.md

@@ -67,6 +67,7 @@
 | ✅ | 262282.25.01.09.1801-0.hi_1_10_0 | Release | 1-9-2025 | Operation: Frontlines - Spring Update 2025 |
 | ✅ | 263865.25.03.19.1809-2.hi_1_10_0 | Release | 3-19-2025 | Operation: Forerunner |
 | ✅ | 264397.25.04.10.1801-1.hi_1_11_0 | Release | 4-10-2025 | Summer Update 2025 |
+| ❌ | TBA | Release | 6-10-2025 | Operation: Legacy |
 
 ## Halo Wars 2