Verilator

==========================

**Major:**

* Add --x-assign=fast option, and make it the default.
This chooses performance over reset debugging. See the manual.
* Add --autoflush, for flushing streams after $display. [Steve Tong]
* Add CASEWITHX lint warning and if disabled fix handling of casez with Xs.

**Minor:**

* Add $feof, $fgetc, $fgets, $fflush, $fscanf, $sscanf. [Holger Waechtler]
* Add $stime. [Holger Waechtler]
* Add $random.
* Add --Wfuture-, for improving forward compatibility.
* Add WIDTH warning to $fopen etc file descriptors.
* Fix verilator_includer not being installed properly. [Holger Waechtler]
* Fix IMPURE errors due to X-assignment temporary variables. [Steve Tong]
* Fix "lvalue" errors with public functions. (25) [CY Wang]

==========================

**Minor:**

* Ignore "// verilator" comments alone on endif lines. [Rodney Sinclair]
* "Make install" now installs verilator_includer and verilator_profcfunc.
* Fix tracing missing changes on undriven public wires. [Rodney Sinclair]
* Fix syntax error when "`include `defname" is ifdefed. [John Dickol]
* Fix error when macro call has commas in concatenate. [John Dickol]
* Fix compile errors under Fedora 9, GCC 4.3.0. [by Jeremy Bennett]
* Fix Makefile to find headers/libraries under prefix. [by Holger Waechtler]

==========================

**Minor:**

* Fix missing file in kit.

==========================

**Minor:**

* Add DESTDIR to Makefiles to assist RPM construction. [Gunter Dannoritzer]
* Fix compiler warnings under GCC 4.2.1.
* Fix preprocessor `else after series of `elsif. [Mark Nodine]
* Fix parameterized defines calling define with comma. [Joshua Wise]
* Fix comma separated list of primitives. [by Bryan Brady]

==========================

**Minor:**

* Add Verilog 2005 $clog2() function.
This is useful in calculating bus-widths from parameters.
* Support C-style comments in -f option files. [Stefan Thiede]
* Add error message when modules have duplicate names. [Stefan Thiede]
* Support defines terminated in EOF, though against spec. [Stefan Thiede]
* Support optional argument to $finish and $stop. [by Stefan Thiede]
* Support ranges on gate primitive instantiations. [Stefan Thiede]
* Ignore old standard(ish) Verilog-XL defines. [by Stefan Thiede]
* Fix "always ((a) or (b))" syntax error. [by Niranjan Prabhu]
* Fix "output reg name=expr;" syntax error. [Martin Scharrer]
* Fix multiple .v files being read in random order. [Stefan Thiede]
* Fix internal error when params get non-constants. [Johan Wouters]
* Fix bug introduced in 3.661 with parameterized defines.

==========================

**Major:**

* The --enable-defenv configure option added in 3.660 is now the default.
This hard-codes a default for VERILATOR_ROOT etc in the executables.
* Add --language option for supporting older code. [Stefan Thiede]
* Add --top-module option to select between multiple tops. [Stefan Thiede]

**Minor:**

* Unsized concatenates now give WIDTHCONCAT warnings. [Jonathan Kimmitt]
Previously they threw fatal errors, which in most cases is correct
according to spec, but can be incorrect in presence of parameter values.
* Support functions with "input integer". [Johan Wouters]
* Ignore delays attached to gate UDPs. [Stefan Thiede]
* Fix SystemVerilog parameterized defines with \`\` expansion,
and fix extra whitespace inserted on substitution. [Vladimir Matveyenko]
* Fix no-module include files on command line. [Stefan Thiede]
* Fix dropping of backslash quoted-quote at end of $display.
* Fix task output pin connected to non-variables. [Jonathan Kimmitt]
* Fix missing test_v in install datadir. [Holger Waechtler]
* Fix internal error after MSB < LSB error reported to user. [Stefan Thiede]