Update CHANGELOG.md

CHANGELOG.md

@@ -13,13 +13,19 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 * Added [-Wudp-coverage](https://sv-lang.com/warning-ref.html#udp-coverage) which warns about edge-sensitive user-defined primitives that don't specify an output state for all edges of all inputs (thanks to @likeamahoney)
 * Added [-Wpacked-array-conv](https://sv-lang.com/warning-ref.html#packed-array-conv) which warns for conversions between different multidimensional packed array types even if their overall bit width is the same
 * Added the [-Wparentheses](https://sv-lang.com/warning-ref.html#parentheses) warning group for diagnosing common precedence-related syntactical errors, which includes the following new warnings: -Wbitwise-rel-precedence, -Warith-in-shift, -Wlogical-not-parentheses, -Wbitwise-op-parentheses, -Wlogical-op-parentheses, -Wconditional-precedence, -Wconsecutive-comparison
+* Added [-Wcase-type](https://sv-lang.com/warning-ref.html#case-type) to warn about case statements with mismatching types in their item expressions
+* Added [-Wcase-default](https://sv-lang.com/warning-ref.html#case-default) which warns about case statements that don't include a `default` label
+* Added [-Wcase-outside-range](https://sv-lang.com/warning-ref.html#case-outside-range) which warns for case items that can never be matched because they are outside the range of the case condition expression
+* Added [-Wcase-enum](https://sv-lang.com/warning-ref.html#case-enum) and [-Wcase-enum-explicit](https://sv-lang.com/warning-ref.html#case-enum-explicit) which warns about enum values that are missing from a case statement (with and without the presence of a `default` label, respectively)
+* Added [-Wcase-dup](https://sv-lang.com/warning-ref.html#case-dup) which warns about duplicate item expressions in a case statement
 
 ### Improvements
 * Made -Wuseless-cast a bit less noisy -- it now does not warn about expressions involving genvars or cases where types are matching but one or the other has a different typedef alias name
 * -Wsign-compare no longer warns about expressions involving genvars
 * -Wvector-overflow no longer warns about signed literals with binary, octal, or hex bases that place a bit in the MSB
 * Made some build tweaks to support hermetic builds (thanks to @cc10512)
 * Added support for unions to slang-reflect (thanks to @Sustrak)
+* Changed the error issued for sequences that can never be matched to be a warning instead (-Wseq-no-match) and added additional context to the diagnostic message
 
 ### Fixes
 * Fixed a bug with constant evaluation of left-hand side assignment patterns that require implicit conversions to be applied
@@ -39,6 +45,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 * Fixed a bug where some type declarations in two modules with different parameter values could be erroneously considered equivalent to each other (thanks to @povik)
 * Correctly disallow derived class virtual methods from declaring a different visibility level from their base class method
 * Reworked how enum types are implemented to fix various issues related to enum values declared inside subexpressions from being visible to their surrounding scopes
+* Fixed several issues related to enum value initializers that try to refer to themselves or other enum values
 
 
 ## [v7.0] - 2024-09-26