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Update CHANGELOG.md
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MikePopoloski authored Apr 6, 2024
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15 changes: 14 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
* Added `--allow-self-determined-stream-concat` (included in 'vcs' compat mode) to allow the use of streaming concatenation expressions in self-determined contexts (instead of just in assignments)
* Added `--allow-multi-driven-locals` (included in 'vcs' compat mode) to allow subroutine local variables to be driven by multiple always_ff / always_comb blocks
* Added full support for SystemVerilog libraries and configurations
* Added support for equality comparisons between virtual interfaces and actual interface instances
* Added support for equality comparisons between virtual interfaces and actual interface instances (thanks to @likeamahoney)
#### Clarifications in IEEE 1800-2023
* Unsized integer literals can be any bit width, not just capped at 32 bits.
* Unpacked unions are allowed as net types
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* Non-blocking assignments to elements of dynamic arrays are not allowed
* Static casts are assignment-like contexts
* Tagged union expressions must be primaries only (binary expressions are not allowed)
* Severity system tasks should work in constant functions (and behave as elaboration-time tasks)
#### New Features in IEEE 1800-2023
* Triple quoted (multiline) string literals
* Macro stringification with triple quoted strings
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* Added the `weak_reference` built-in class
* Interface classes can be declared within other classes
* The built-in `process` class is declared `final`
* Value ranges gain new absolute / relative tolerance operators
* `ref static` subroutine arguments

### General Features
* Added [-Wmultibit-edge](https://sv-lang.com/warning-ref.html#multibit-edge) (on by default) to warn about clock edge triggers on multibit expressions
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* Information about module/interface/program definitions are now included in AST JSON output
* slang-reflect has been improved to support reflecting more complex types for local parameters (thanks to @Sustrak)
* Rewrote analysis of user-defined primitive tables to be much more efficient; previously primitives with large numbers of inputs could take a very long time to analyze
* Command line defines now take precedence over defines in Verilog source files, which matches the behavior of other tools (thanks to @udif)

### Fixes
* Fixed several crashes in slang-tidy (thanks to @likeamahoney)
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* Fixed handling of include files that don't contain a newline character (thanks to @ihathbeer)
* Fixed handling of classes that declare a member named "\new" with an escaped identifier
* chandles are properly allowed in non-edge event expressions
* Correctly disallow `wait fork` and `expect` in functions and final blocks
* Fixed bug in computing bounds for assigmments to slices of unpacked arrays
* Fixed macro argument parsing when there are '(*' and '*)' tokens in them
* Fixed a bug in SVInt::operator< when comparing the smallest possible negative integer (thanks to @Krym4s)
* Correctly allow non-blocking assignments with a timing delay to be used in always_ff blocks (thanks to @udif)
* Fixed checking of overlapping primitive table rows when the '-' output character is used (thanks to @udif)
* Fixed checking for which kinds of functions are allowed in deferred assertion actions and sequence match items
* Fixed a couple of places where range selects were not properly checked for overflow
* Fixed sorting of diagnostics when buffers are loaded in non-deterministic order


## [v5.0] - 2023-12-26
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