Update update.md

Author: 1038lab

update.md

@@ -1,4 +1,9 @@
 # ComfyUI-RMBG Update Log
+## V2.6.0 (2025/07/15)
+![ReferenceLatantMaskrlay](https://github.com/user-attachments/assets/8eba03be-d139-4694-9ec4-7d99bace4a20)
+- Added the first RMBG inpainting tool for the Flux Kontext model: the `ReferenceLatentMask` node, which leverages a reference latent and mask for precise region conditioning. (Stay tuned, more tools will be released in future updates.)
+- Updated RMBG `LoadImage` node: added an upscaling method for improved output quality, refined image output to RGB format, and optimized the alpha channel in the mask output..
+
 ## V2.5.2 (2005/07/11)
 - Model repository Bug Fix
 ![V 2 5 2](https://github.com/user-attachments/assets/4b41887a-0d8a-4a5a-9128-1e866f410b60)