Update changelog and remove unnecessary upgrade notice

Author: filmor

CHANGELOG.md

@@ -8,15 +8,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 See [`UPGRADE.md`](./UPGRADE.md) for additional help when upgrading to newer
 versions.
 
-## unreleased
-
-### Added
+## 0.37.1 - 2025-09-10
 
 ### Fixed
 
-### Changed
-
-### Removed
+- Fix required Elixir version (>= 1.15) in `rustler_mix`
+- Fix missing `chdir` in `rustler_mix` when compiling in a subdirectory (#706)
 
 ## 0.37.0 - 2025-09-09
 

UPGRADE.md

@@ -2,23 +2,6 @@
 
 This document is intended to simplify upgrading to newer versions by extending the changelog.
 
-## 0.36 -> 0.37
-
-`rustler_mix` will now require a workspace with the same root as the Elixir
-package with all relevant crates included as workspace members. If the package
-previously had a crate at `native/my_crate`, a `Cargo.toml` with the following
-content should be added at the root:
-```toml
-[workspace]
-resolver = "3"
-members = ["native/my_crate"]
-```
-
-The `/target` directory should also be added to the root's `.gitignore` file.
-
-More information on workspaces can be found in the Rust documentation at
-https://doc.rust-lang.org/book/ch14-03-cargo-workspaces.html.
-
 ## 0.34 -> 0.35
 
 `rustler_sys` as a standalone library has been replaced by an embedded