docs: mentioned uvx2 rust rewrite

README.md

@@ -1,6 +1,7 @@
 # uvx: pipx for uv
 
 Inspired by:
+
 - [pipx](https://github.com/pypa/pipx)
 - [uv](https://github.com/astral-sh/uv)
 
@@ -14,12 +15,23 @@ pipx install uvx
 ```
 
 ## Usage
+
 ```bash
 uvx
 ```
 
 Run `uvx` without any arguments to see all possible subcommands.
 
+## Note - pending replacement
+
+Although version `1.0.0` was recently released, work has already begun on version `2.0.0`, which is being developed
+at [robinvandernoord/uvx2](https://github.com/robinvandernoord/uvx2/). The decision to undertake this new version is
+driven by performance concerns with the current Python implementation, which has a startup time of 200ms. To address
+this, `uvx 2.0` is being rewritten in Rust. This transition will enable `uvx` to utilize some of the APIs of `uv`
+directly, without the need to spawn a separate process (in some cases), thus enhancing performance further. 
+Despite this rewrite, both the repository and the existing Python implementation will be maintained, 
+particularly for bug fixes, because it may have a larger (backwards) compatibility across system architectures.
+
 ## License
 
 `uvx` is distributed under the terms of the [MIT](https://spdx.org/licenses/MIT.html) license.