Prepare release 0.6.0

CHANGELOG.md

@@ -2,22 +2,28 @@
 
 ## [Unreleased]
 
+## [0.6.0] - 2024-04-22
+
+* Upgrade to argmin 0.10.0:
+  * new `serde1` feature to enable serialization/deserialization (required for checkpointing)
+  * add `argmin-observer-slog` dependency
+
 ## [0.5.1] - 2023-10-19
 
-* Fix default constraint tolerance (set to zero, was 2e-4) 
+* Fix default constraint tolerance (set to zero, was 2e-4)
 
 ## [0.5.0] - 2023-10-13
 
 * Remove `fmin_cobyla` implementation as `nlopt_cobyla` now renamed `minimize` based on NLopt implementation is more powerful
 Nevertheless Cobyla argmin solver is still based on initial implementation, not on NLopt one.
 * Remove gradient from `ObjFn` trait which is now renamed `Func`
-* `minimize` API rework to make it more Rusty. 
-* Not all options of NLopt version are managed. Currently `cobyla::minimize` handles `xinit`, `bounds`, `max_eval`, `ftol_rel`, 
-`ftol_abs`, `xtol_rel`, `xtol_abs` and only inequality contraints (like c >= 0). See documentation for further details. 
+* `minimize` API rework to make it more Rusty.
+* Not all options of NLopt version are managed. Currently `cobyla::minimize` handles `xinit`, `bounds`, `max_eval`, `ftol_rel`,
+`ftol_abs`, `xtol_rel`, `xtol_abs` and only inequality contraints (like c >= 0). See documentation for further details.
 
 ## [0.4.0] - 2023-10-06
 
-COBYLA implementation coming from the NLopt project is now also available (as `nlopt_cobyla`) allowing to compare 
+COBYLA implementation coming from the NLopt project is now also available (as `nlopt_cobyla`) allowing to compare
 with the initial implementation (`fmin_cobyla`). This new implementation went through the same process of using c2rust
 transpilation from initial C implementation.
 
@@ -31,6 +37,6 @@ COBYLA C code has been translated to Rust using [c2rust](https://github.com/immu
 
 ## [0.1.0] - 2022-05-06
 
-Rust wrapper for COBYLA optimizer (COBYLA stands for Constrained Optimization BY Linear Approximations). 
-COBYLA C code was copied from [here](https://github.com/emmt/Algorithms/tree/master/cobyla) and wrapped 
-using the callback trick implemented in [nlopt-rust](https://github.com/adwhit/rust-nlopt) project.
+Rust wrapper for COBYLA optimizer (COBYLA stands for Constrained Optimization BY Linear Approximations).
+COBYLA C code was copied from [here](https://github.com/emmt/Algorithms/tree/master/cobyla) and wrapped
+using the callback trick implemented in [nlopt-rust](https://github.com/adwhit/rust-nlopt) project.

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 authors = ["Remi Lafage <[email protected]>"]
 name = "cobyla"
-version = "0.5.1"
+version = "0.6.0"
 edition = "2021"
 license-file = "LICENSE.md"
 description = "COBYLA optimizer for Rust"