chore: updated changelog

CHANGELOG.md

@@ -1,6 +1,6 @@
 # igraph C library changelog
 
-## [master]
+## [0.10.12] - 2024-05-06
 
 ### Added
 
@@ -1350,7 +1350,8 @@ Some of the highlights are:
  - Provide proper support for Windows, using `__declspec(dllexport)` and `__declspec(dllimport)` for `DLL`s and static usage by using `#define IGRAPH_STATIC 1`.
  - Provided integer versions of `dqueue` and `stack` data types.
 
-[master]: https://github.com/igraph/igraph/compare/0.10.11..master
+[master]: https://github.com/igraph/igraph/compare/0.10.12..master
+[0.10.12]: https://github.com/igraph/igraph/compare/0.10.11..0.10.12
 [0.10.11]: https://github.com/igraph/igraph/compare/0.10.10..0.10.11
 [0.10.10]: https://github.com/igraph/igraph/compare/0.10.9..0.10.10
 [0.10.9]: https://github.com/igraph/igraph/compare/0.10.8..0.10.9