Update README.md

README.md

@@ -7,6 +7,16 @@ MegaApiClient
 [![Nuget downloads](https://img.shields.io/nuget/dt/MegaApiClient)](https://www.nuget.org/packages/MegaApiClient/)
 [![License](https://img.shields.io/github/license/gpailler/MegaApiClient)](https://github.com/gpailler/MegaApiClient/blob/master/LICENSE)
 
+---
+
+> [!IMPORTANT]
+> **MegaApiClient is now in passive maintenance mode; I will no longer be actively maintaining it.**
+> 
+> This project began as a proof of concept to access the MegaUpload API several years ago, but I have never personally used it. Over the past years, I have dedicated a lot of energy to maintaining MegaApiClient for the community. However, I have reached a point where I lack the time and have different priorities. MegaApiClient will remain on GitHub and NuGet, and pull requests are welcome, but I do not plan to actively fix issues or add features.
+> [(more)](https://github.com/gpailler/MegaApiClient/issues/242)
+
+---
+
 **MegaApiClient is a C# .Net library to access [http://mega.co.nz](http://mega.co.nz) / [http://mega.nz](http://mega.nz) cloud storage and file hosting service.**
 
 Documentation is available on [https://gpailler.github.io/MegaApiClient/](https://gpailler.github.io/MegaApiClient/)