add changelog

Author: hexaeder

NEWS.md

@@ -1,5 +1,13 @@
 # NetworkDynamics Release Notes
 
+## v0.10.10 Changelog
+- [#317](https://github.com/JuliaDynamics/NetworkDynamics.jl/pull/317) Enhanced callback system with negative affect support and runtime callback injection:
+  - Add `affect_neg!` parameter to `ContinuousComponentCallback` and `VectorContinuousComponentCallback` for handling downcrossing events
+  - Add ability to inject additional callbacks at runtime via `get_callbacks(nw, additional_callbacks)` without storing them in component metadata
+  - Add `NetworkDynamics.pretty_f()` debugging utility for pretty-printing MTK-generated functions
+  - Improve MTK integration warnings for nested event systems
+  - Better initialization error messages with specific variable information when NaN values are detected
+
 ## v0.10.9 Changelog
 - [#314](https://github.com/JuliaDynamics/NetworkDynamics.jl/pull/314) Consolidate deprecated functionality: all deprecated functionality moved to dedicated `src/deprecated.jl` file for easier maintenance