Fix changelog

Author: relf

CHANGELOG.md

@@ -2,11 +2,11 @@
 
 ## [Unreleased]
 
-## [0.8.0] - 2025-10-20
+## [0.8.0] - 2025-10-21
 
 * Gate COBYLA argmin COBYLA solver behind `argmin` feature.
-  Migration guide: If you use `CobylaSolver` change your Cargo.toml as follows:
-  `cobyla = { version = "0.7", features = ["argmin"] }`
+  Migration guide: If you use `CobylaSolver` change your `Cargo.toml` as follows:
+  `cobyla = { version = "0.8", features = ["argmin"] }`
 
 ## [0.7.0] - 2025-10-04