Verilator

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

**Minor:**

* Add --future0 and --future1 options.
* Support class parameters (2231) (3541). [Arkadiusz Kozdra, Antmicro Ltd]
* Support wildcard index associative arrays (3501). [Arkadiusz Kozdra, Antmicro Ltd]
* Support negated properties (3572). [Aleksander Kiryk]
* Support $test$plusargs(expr) (3489).
* Rename trace rolloverSize() (3570).
* Improve Verilation speed with --threads on large designs. [Geza Lore]
* Improve Verilation memory by reducing V3Number (3521). [Mariusz Glebocki, Antmicro Ltd]
* Fix struct pattern assignment (2328) (3517). [Mostafa Gamal]
* Fix public combo propagation issues (2905). [Todd Strader]
* Fix incorrect tristate logic (3399) [shareefj, Vighnesh Iyer]
* Fix incorrect bit op tree optimization (3470). [algrobman]
* Fix bisonpre for MSYS2 (3471).
* Fix max memory usage (3483). [Kamil Rakoczy, Antmicro Ltd]
* Fix empty string arguments to display (3484). [Grulfen]
* Fix table optimizing away display (3488). [Stefan Post]
* Fix unique_ptr memory header for MinGW64 (3493).
* Fix $dump system task with --output-split-cfuncs (3495) (3497). [Varun Koyyalagunta]
* Fix wrong bit op tree optimization (3509). [Nathan Graybeal]
* Fix nested default assignment for struct pattern (3511) (3524). [Mostafa Gamal]
* Fix sformat string incorrectly cleared (3515) (3519). [Gustav Svensk]
* Fix segfault exporting non-existent package (3535).
* Fix void-cast queue pop_front or pop_back (3542) (3364). [Drew Ranck]
* Fix case statement comparing string literal (3544). [Gustav Svensk]
* Fix === with some tristate constants (3551). [Ryszard Rozak, Antmicro Ltd]
* Fix converting classes to string (3552). [Arkadiusz Kozdra, Antmicro Ltd]
* Fix --hierarchical with order-based pin connections (3583) (3585). [Kelin9298]

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

**Major:**

* VCD tracing is now parallelized with --threads (3449). [Geza Lore, Shunyao CAD]

**Minor:**

* Add -f<optimization> options to replace -O<letter> options (3436).
* Changed --no-merge-const-pool to -fno-merge-const-pool (3436).
* Changed --no-decoration to remove output whitespace (3460). [Kamil Rakoczy]
* Support compile time trace signal selection with tracing_on/off (3323). [Shunyao CAD]
* Support non-ANSI interface port declarations (3439). [Geza Lore, Shunyao CAD]
* Support concat assignment to packed array (3446).
* Improve conditional merging optimization (3125). [Geza Lore, Shunyao CAD]
* Define VM_TRACE_VCD when tracing in VCD format. [Geza Lore, Shunyao CAD]
* Add assert when VerilatedContext is mis-deleted (3121). [Rupert Swarbrick]
* Internal prep work towards timing control. [Krzysztof Bieganski, Antmicro Ltd]
* Fix hang with large case statement optimization (3405). [Mike Urbach]
* Fix UNOPTFLAT warning from initial static var (3406). [Kamil Rakoczy]
* Fix compile error when enable VL_LEAK_CHECKS (3411). [HungMingWu]
* Fix cmake rules to support higher-level targets (3377) (3386). [Martin Stadler]
* Fix BLKANDNBLK on $readmem/$writemem (3379). [Alex Solomatnikov]
* Fix 'with' operator with type casting (3387). [xiak95]
* Fix incorrect conditional merging (3409). [Raynard Qiao]
* Fix passing VL_TRACE_FST_WRITER_THREAD in CMake build. [Geza Lore, Shunyao CAD]
* Fix compile error under strict C++11 mode (3463). [Kevin Kiningham]
* Fix public unpacked input ports (3465). [Todd Strader]

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

**Minor:**

* Split --prof-threads into --prof-exec and --prof-pgo (3365). [Geza Lore, Shunyao CAD]
* Deprecate 'vluint64_t' and similar types (3255).
* Raise error on assignment to const in initial blocks. [Geza Lore, Shunyao CAD]
* Issue INITIALDLY/COMBDLY/BLKSEQ warnings consistent with Verilator execution. [Geza Lore, Shunyao CAD]
* Support LoongArch ISA multithreading (3353) (3354). [Xi Zhang]
* Fix MSVC localtime_s (3124).
* Fix Bison 3.8.2 error (3366). [elike-ypq]
* Fix rare bug in -Oz (V3Localize) (3286). [Geza Lore, Shunyao CAD]
* Fix tracing interfaces inside interfaces (3309). [Kevin Millis]
* Fix filenames with dots overwriting debug .vpp files (3373).
* Fix including VK_USER_OBJS in make library (3370) (3382). [Julien Margetts]
* Fix hang in generate symbol references (3391) (3398). [Yoda Lee]
* Fix missing include <memory> (3392). [Aliaksei Chapyzhenka]
* Fix crash in recursive module inlining (3393). [david-sawatzke]
* Fix --protect-ids mangling names of library methods. [Geza Lore, Shunyao CAD]
* Fix foreach segmentation fault (3400). [Kamil Rakoczy]

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

**Minor:**

* Removed the deprecated lint_off flag -msg; use -rule instead.
* Removed the deprecated "fl" attribute in XML output; use "loc" attribute instead.
* Suppress WIDTH warning on negate using carry bit (3295). [Peter Monsson]
* Add trace dumpvars() call for selective runtime tracing (3322). [Shunyao CAD]
* Add VERILATOR_VERSION_INTEGER for determining API (3343). [Larry Doolittle]
* Improve various V3Combine algorithm details (3328). [Yutetsu TAKATSUKASA]
* Improve various V3Order algorithm details. [Geza Lore]
* Fix MacOS arm64 build (3285) (3291). [Guokai Chen]
* Fix signed number operation (3294) (3308). [Raynard Qiao]
* Fix FST traces to include vector range (3296) (3297). [Jamie Iles]
* Fix skipping public enum values with four-state values (3303).
* Fix $readmem file not found to be warning not error (3310). [Alexander Grobman]
* Fix class stringification on wide arrays (3312). [Iru Cai]
* Fix $fscanf etc to return -1 on EOF (3313). [Jose Tejada]
* Fix public function arguments that are arrayed (3316). [pawel256]
* Fix unnamedblk error on foreach (3321). [Aliaksei Chapyzhenka]
* Fix crash in recursive module inlining (3324). [Larry Doolittle]
* Fix VL_RESTORER behavior on passing a lvalue reference (3326). [HungMingWu]
* Fix compile error with --trace-fst --sc (3332). [leavinel]
* Fix cast to array types (3333). [Todd Strader]
* Fix Vdeeptemp error with --threads and --compiler clang (3338). [Per Karlsson]

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

**Major:**

* Primary inputs and outputs (VL_INW/VL_OUTW) now use VlWide type.
In general this should be backward compatible, but may lead to some
wrapper code needing changes.
* Option --cdc is deprecated and is planned for removal,
file a bug if this is still being used.

**Minor:**

* Support class static members (2233).
* Support force/release (2431) (2593). [Shunyao CAD]
* Add 'forceable' attribute to allow forcing from C++. (3272). [Geza Lore, Shunyao CAD]
* Support lower dimension looping in foreach loops (3172). [Ehab Ibrahim]
* Support up to 64 bit enums for .next/.prev/.name (3244). [Alexander Grobman]
* Reduce .rodata footprint of trace initialization (3250). [Geza Lore, Shunyao CAD]
* Support FST tracing in hierarchical Verilation (3251). [Yutetsu TAKATSUKASA]
* Use C++11 standard types for MacOS portability (3254) (3257). [Adrien Le Masle]
* Fix make support for BSD ar (2999) (3256). [Julie Schwartz]
* Fix bad ending address on $readmem (3205). [Julie Schwartz]
* Fix MSWIN compile error (2681). [Unai Martinez-Corral]
* Fix break under foreach loop (3230).
* Fix VL_STREAML_FAST_QQI with 64 bit left-hand-side (3232) (3235). [Adrien Le Masle]
* Fix $sformat of inputs/outputs (3236). [Adrien Le Masle]
* Fix associative array first method as statement (3228). [Adrien Le Masle]
* Fix associative array foreach loop (3229).
* Fix $fclose not accepting expressions (3237). [Julie Schwartz]
* Fix $random not updating seed (3238). [Julie Schwartz]
* Fix top level param overwrite when package has same param (3241) (3247). [Adrien Le Masle]
* Fix spurious UNUSED by ignoring inout pin connections (3242). [Julie Schwartz]
* Fix splitting of _eval and other top level functions. [Geza Lore, Shunyao CAD]
* Fix internal error by inout port (3258). [Yutetsu TAKATSUKASA]
* Fix GCC 11 compile error (3273). [HungMingWu]

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

**Major:**

* Add --lib-create, similar to --protect-lib but without protections.
* Support tracing through --hierarchical/--lib-create libraries (3200).

**Minor:**

* Internal code cleanups and improvements. [Geza Lore]
* Improve --thread Verilation-time performance.
* Support task name in $display %m (3211). [Julie Schwartz]
* Make 'bit', 'logic' and 'time' types unsigned by default. [Geza Lore]
* Optimize $random concatenates/selects (3114).
* Fix array method names with parenthesis (3181) (3183). [Teng Huang]
* Fix split_var assign merging (3177) (3179). [Yutetsu TAKATSUKASA]
* Fix wrong bit op tree optimization (3185). [Yutetsu TAKATSUKASA]
* Fix some SliceSels not being constants (3186) (3218). [Michaël Lefebvre]
* Fix nested generate if genblk naming (3189). [yanx21]
* Fix hang on recursive definition error (3199). [Jonathan Kimmitt]
* Fix display of signed without format (3204). [Julie Schwartz]
* Fix display of empty string constant (3207) (3215). [Julie Schwartz]
* Fix incorrect width after and-or optimization (3208). [Julie Schwartz]
* Fix $fopen etc on integer arrays (3214). [adrienlemasle]
* Fix $size on dynamic strings (3216).
* Fix %0 format on $value$plusargs (3217).
* Fix timescale portability on Arm64 (3222).