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List of major changes and improvements between releases
=======================================================
-Yosys 0.21 .. Yosys 0.21-dev
+Yosys 0.23 .. Yosys 0.23-dev
--------------------------
+ * Verilog
+ - Support for module-scoped identifiers referring to tasks and functions.
+
+Yosys 0.22 .. Yosys 0.23
+--------------------------
+ * New commands and options
+ - Added option "-cross" to "miter" pass.
+ - Added option "-nocheck" to "equiv_opt" pass.
+
+ * Formal Verification
+ - yosys-smtbmc: Added "--detect-loops" option for checking if states are
+ unique in temporal induction counter examples.
+
+ * Verific support
+ - Added support for reading Liberty files using Verific library.
+ (Optinally enabled with ENABLE_VERIFIC_LIBERTY)
+ - Added option "-cells" to "verific -import" enabling import of
+ all cells from verific design.
+
+ * Various
+ - MinGW build (Windows) plugin support.
+ - Added YOSYS_ABORT_ON_LOG_ERROR environment variable for debugging.
+ Setting it to 1 causes abort() to be called when Yosys terminates with an
+ error message.
+
+Yosys 0.21 .. Yosys 0.22
+--------------------------
+ * Verific support
+ - Added support for here-document for "verific" command (for reading
+ source files).
+ - Added support for reading EDIF files using Verific library.
+ (Optinally enabled with ENABLE_VERIFIC_EDIF)
+
+ * Various
+ - Added tech specific utilization to "stat" json.
+
Yosys 0.20 .. Yosys 0.21
--------------------------
* New commands and options