Prepare for release

Author: olofk

NEWS

@@ -1,3 +1,14 @@
+0.6.1 2025-03-31 Olof Kindgren
+======================================================
+* Remove broken f4pga and vpr legacy backends
+* Add warnings about deprecated legacy backends
+* Fix cocotb 2.0 compatibility
+* vcs: Port to Flow API
+* Allow passing options to created flow Makefile
+* Support frontends in all flows
+* Add support for custom build runners
+* xcelium legacy backend: Remove broken VPI support, add DPI support
+
 0.6.0 2024-11-13 Olof Kindgren
 ======================================================
 * New flows: gowin