Fixes

• Remove use of LLVMGetGlobalContext for single module compilation.
• Fixed bug where constants would get modified when slicing them. #2660
• Regression with npot vector in struct triggering an assert #2219.
• Casting bitstruct to wider base type should be single step #2616.
• Optional does not play well with bit ops #2618.
• Bytebuffer.grow was broken #2622.
• Hex escapes like "\x80" would be incorrectly lowered. #2623
• Ignore const null check on deref in $defined and $sizeof #2633.
• Subscripting of constant slices would sometimes be considered non-constant #2635.
• Compiler crash when concatenating structs and arrays to an untyped list.
• Strings assigned to longer arrays would crash codegen, e.g. char[10] x = "abcd.
• Typedefs and structs with inline types supporting lengthof would not work with lengthof #2641.
• $defined(foo()) now correctly errors if foo() would require a path.
• @if($defined((char*){}.foo())) does not error if foo is missing.
• Hard limit of 127 characters for identifiers.
• $$LINE would sometimes yield the incorrect format.
• Fix error message when a method has the wrong type for the first argument.
• Unit tests allocating too much tmem without @pool would cause errors in unrelated tests. #2654
• Incorrect rounding for decimals in formatter in some cases. #2657
• Incorrectly using LLVMStructType when emitting dynamic functions on MachO #2666
• FixedThreadPool join did not work correctly.
• Fix bug when creating bool vectors in certain cases.
• Compiler assert when passing returning CT failure immediately rethrown #2689.
• Converting between simd/non-simd bool vector would hit a compiler assert. #2691
• i<n> suffixes were not caught when n < 8, causing an assert.
• Parse error in $defined was not handled correctly, leading to an assertion.
• Assert when struct/array size would exceed 4 GB.
• Assert when encountering a malformed module alias.
• Assert when encountering a test function with raw vaarg parameters.
• foo.x was not always handled correctly when foo was optional.
• x'1234' +++ (ichar[1]) { 'A' } would fail due to missing const folding.
• Miscompilation: global struct with vector could generate an incorrect initializer.
• String.tokenize_all would yield one too many empty tokens at the end.
• String.replace no longer depends on String.split.
• Fix the case where \u<unicode char> could crash the compiler on some platforms.
• Designated initialization with ranges would not error on overflow by 1.
• io::read_fully now handles unbounded streams properly.
• Crash when doing a type property lookup for const inline enums in some cases #2717.
• Incorrect alignment on typedef and local variable debug info.
• Assert on optional-returning-function in a comma expression. #2722
• Creating recursive debug info for functions could cause assertions.
• bitorder::read and bitorder::write may fail because of unaligned access #2734.
• Fix LinkedList.to_format to properly iterate linked list for printing.
• Hashing a vector would not use the entire vector in some cases.
• Fix to temp_directory on Windows #2762.
• Too little memory reserved when printing backtrace on Darwin #2698.
• In some cases, a type would not get implicitly converted to a typeid #2764.
• Assert on defining a const fault enum with enumerator and fault of the same name. #2732
• Passing a non-conststring to module attributes like @cname would trigger an assert rather than printing an error. #2771
• Passing different types to arg 1 and 2 for $$matrix_transpose would trigger an assert. #2771
• Zero init of optional compile time variable would crash the compiler. #2771
• Using multiple declaration for generics in generic module would fail. #2771
• Defining an extern const without a type would crash rather than print an error. #2771
• Typedef followed by brace would trigger an assert. #2771
• Union with too big member would trigger an assert. #2771
• Bitstruct with unevaluated user-defined type would cause a crash. #2771
• Using named parameters with builtins would cause a crash. #2771
• In some cases, using missing identifiers with builtins would cause a crash. #2771
• Using $defined with function call missing arguments would cause a crash. #2771
• Adding @nostrip to a test function would crash. #2771
• Mixing struct splat, non-named params and named params would crash rather than to print an error. #2771
• Creating a char vector from bytes would crash. #2771
• Using $$wstr16 with an illegal argument would crash instead of printing an error. #2771
• Empty struct after @if processing was not detected, causing a crash instead of an error. #2771
• Comparing an uint and int[<4>] was incorrectly assumed to be uint compared to int, causing a crash instead of an error. #2771
• When an int[*][6] was given too few values, the compiler would assert instead of giving an error. #2771
• Inferring length from a slice was accidentally not an error.
• Eager evaluation of macro arguments would break inferred arrays on some platforms. #2771.
• Vectors not converted to arrays when passed as raw vaargs. #2776
• Second value in switch range not checked properly, causing an error on non-const values. #2777
• Broken cast from fault to array pointer #2778.
• $typeof untyped list crashes when trying to create typeid from it. #2779
• Recursive constant definition not properly detected, leading to assert #2780
• Failed to reject void compile time variables, leading to crash. #2781
• Inferring the size of a slice with an inner inferred array using {} isn't detected as error #2783
• Bug in sysv abi when passing union in with floats #2784
• When a global const has invalid attributes, handling is incorrect, leading to a crash #2785.
• int? ? was not correctly handled. #2786
• Casting const bytes to vector with different element size was broken #2787
• Unable to access fields of a const inline enum with an aggregate underlying type. #2802
• Using an optional type as generic parameter was not properly caught #2799
• Instantiating an alias of a user-defined type was not properly caught #2798
• Too deeply nested scopes was a fatal crash and not a regular semantic error. #2796
• Recursive definition of tag not detected with nested tag/tagof #2790
• Attrdef eval environment lacked rtype, causing error on invalid args #2797
• $typeof() returns typeinfo, causing errors #2795.
• Empty ichar slice + byte concatenation hit an assert. #2789
• Remove dependency on test tmp library for stdlib compiler tests. #2800
• Comparing a flexible array member to another type would hit an assert. #2830
• Underlying slice type not checked correctly in $defined #2829
• Checking for exhaustive cases is done even in if-chain switch if all is enum #2828
• Constant shifting incorrectly doesn't flatten the underlying vector base #2825
• String not set as attributes resolved breaking has_tagof #2824
• Self referencing forward resolved const enum fails to be properly detected #2823
• Incorrectly try compile time int check on vector #2815
• Generating typeid from function gives incorrect typeid #2816
• Recursive definitions not discovered when initializer is access on other const #2817
• Slice overrun detected late hit codegen assert #2822
• Compile time dereference of a constant slice was too generous #2821
• Constant deref of subscript had inserted checks #2818
• Raw vaargs with optional return not lowered correctly #2819
• Early exit in macro call crashes codegen #2820
• Empty enums would return the values as zero sized arrays #2838
• Store of zero in lowering did not properly handle optionals in some cases #2837
• Bitstruct accidentally allowed other arrays than char arrays #2836
• Bitstruct as substruct fails to properly work with designated initializers. #2827
• Bug when initializing an inferred array with deep structure using designated init #2826
• Packed .c3l files without compressions weren't unpacked correctly.
• Lowering of optional in && was incorrect #2843
• Resolving &X.b when X is a const incorrectly checked for runtime constness #2842
• Alignment param on $$unaligned_* not checked for zero #2844
• Fix alignment for uint128 to 16 with WASM targets.
• Incorrect assert in struct alignment checking #2841
• Packed structs sometimes not lowered as such.
• Crash when creating $Type* where $Type is an optional type #2848
• Crashes when using io::EOF~! in various unhandled places. #2848
• Crash when trying to create a const zero untyped list #2847
• Incorrect handling when reporting fn with optional compile time type #2862
• Optional in initializer cause a crash #2864
• Negating a global address with offset was a counted as a global runtime constant #2865
• Converting static "make_slice" to array failed to be handled #2866
• Narrowing a not expression was incorrectly handled #2867
• Vector shift by optional scalar failed #2868
• Initializer did not correctly handle second rethrow #2870
• Crash encountering panic in if-else style switch #2871
• Crash in slice expression when it contains a rethrow #2872
• Multiple issues when rethrowing inside of expressions #2873

Stdlib changes

• Add ThreadPool join function to wait for all threads to finish in the pool without destroying the threads.
• Add @in compile-time macro to check for a value in a variable list of constants. #2662
• Return of Thread/Mutex/CondVar destroy() is now "@maydiscard" and should be ignored. It will return void in 0.8.0.
• Return of Mutex unlock() and lock() is now "@maydiscard" and should be ignored. They will return void in 0.8.0.
• Return of ConditionVariable signal() broadcast() and wait() are now "@maydiscard". They will return void in 0.8.0.
• Return of Thread detatch() is now "@maydiscard". It will return void in 0.8.0.
• Buffered/UnbufferedChannel, and both ThreadPools have @maydiscard on a set of functions. They will return void in 0.8.0.
• Pthread bindings correctly return Errno instead of CInt.
• Return of Thread join() is now "@maydiscard".
• Add poly1305 one-time Message Authentication Code and associated tests. #2639
• Add ripemd hashing and associated tests. #2663
• Add chacha20 stream cipher and associated tests. #2643
• Add BLAKE2 (optionally keyed) cryptographic hashing with associated tests. #2648
• Add BLAKE3 XOF and associated tests. #2667
• Add Elf32_Shdr and Elf64_Shdr to std::os::linux.
• Add any.to and any.as.
• Deprecated DString.append_chars, use DString.append_string
• Deprecated DString.append_string for DStrings, use DString.append_dstring instead.
• Added DString.append_bytes.
• Add streebog (aka "GOST-12") hashing with 256-bit and 512-bit outputs. #2659
• Add unit tests for HMAC 256 based on RFC 4231. #2743
• Add extra AsciiCharset constants and combine its related compile-time/runtime macros. #2688
• Use a Printable struct for ansi RGB formatting instead of explicit allocation and deprecate the old method.
• HashSet.len() now returns usz instead of int. #2740
• Add mem::store and mem::load which may combine both aligned and volatile operations.
• Deprecated EMPTY_MACRO_SLOT and its related uses, in favor of optional_param = ... named macro arguments. #2805
• Add tracking of peak memory usage in the tracking allocator.
• Added realloc_array, realloc_array_aligned, and realloc_array_try to allocator::. #2760