v2.14.1-dev.3

Cairo compiler.

v2.14.1-dev.2

Cairo compiler.

v2.15.0

Major Changes

• Added edition 2025_12, and support for (@a).b being non-snap. #8853
  • If edition enabled - member access of a structs - returns the already desnapped value of the member.

struct A {
    a: Array<felt252>,
    b: felt252,
}
// on V2025_12:
  fn v2025_12(a: @A) {
    let _: @Array<felt252> = @a.a;
    let _: @Array<felt252> = @(@a).a;
    let _: @@Array<felt252> = @@(@a).a;
    let _: felt252 = a.b;
    let _: @felt252 = @a.b;
    let _: @felt252 = @(@a).b;
    let _: @@felt252 = @@(@a).b;
}
// prior to V2025_12:
fn old(a: @A) {
    let _: @Array<felt252> = a.a;
    let _: @@Array<felt252> = (@a).a;
    let _: @felt252 = a.b;
    let _: @@felt252 = (@a).b;
}

• Made _ a valid placeholder for types. #9066

// Now compiles.
let x: [_; 3] = [1, 4, 7_felt252];

Bug Fixes

• Made sure cfg on items of traits not drop visibility section. #8744
• Allowed for caching coupons as well. #8792
• Made TakeIterator's nth implementation more exact. #8849
• Const-eval logical operators must evaluate rhs on non-early return by @phrwlk in #8898
• Decide the number of snapshots by the last member of the deref chain. #8971
• Preventing handling bad-paths for plugin-macros. #9068
• Handled placeholders that weren't met during expansion as the expected empty repeatition. #9082
• Refactored s check and improved failure in recover_public_key. #9142

Optimizations

Compiler Runtime

• Make all functions debug info extraction parallel. #9102

Gas Usage

• Added and use ec_neg_nz. #8721
• Made Neg for signed ints not based on range checks. #8746
• Added const for EcPoint including non-zero. #8750
• Allow shallow specialization of recursive functions. #8717
• (optimization): automatically detecting reboxing of struct member and applying struct_box_deconstruct libfunc. #8768
• (optimization): Reboxing also applied on Box of snapshots. #8954
• (optimization): Reboxing now also works on whole var reboxing. #8994
• canonicalize specilize args to always use SpecializationArg::Struct/Enum. #9021
• added specialization for recursive functions. #8881
• added specialization for tuples and fixed size arrays. #9087

Code Size

Other Changes

• Added const-folding for bounded_int_trim_* functions. #8747
• Improve negative impl inference. #8748
• Added unglueing logic for >= after generic args. #8789
• Made generated embeddable wrappers points to the embeddable attrs. #8791
• Enforce only type or const generic parameters for negative impls. #8793
• Removed non-OS panics from is_eth_signature_valid. #8934
• Change cairo-execute default layout to all_cairo_stwo. #8961
• Override mapping from generated function name to attribute. #8958
• Improved var-based inference diagnostics locations. #9006
• Added support for size of fixed array to be impl-const. #9033
• Added basic sierra-support for get_execution_info_v3_syscall. #8946

New Contributors

• @efcking made their first contribution in #8716
• @weifangc made their first contribution in #8751
• @justinbay made their first contribution in #8738
• @0xwitty made their first contribution in #8812
• @hexcow made their first contribution in #8813
• @maradini77 made their first contribution in #8814
• @prestoalvarez made their first contribution in #8830
• @liuyueyangxmu made their first contribution in #8833
• @0xbryer made their first contribution in #8839
• @barajeel made their first contribution in #8842
• @annwag made their first contribution in #8843
• @fragchain made their first contribution in #8846
• @defitricks made their first contribution in #8854
• @brawncode made their first contribution in #8869
• @lipperhey made their first contribution in #8871
• @operagxsasha made their first contribution in #8879
• @bobtajson made their first contribution in #8873
• @tn0vak made their first contribution in #8882
• @JoshMa-mq made their first contribution in #8892
• @ursulabauer made their first contribution in #8902
• @Elena343-ai made their first contribution in #8908
• @Maximilian199603 made their first contribution in #8912
• @jcastil0 made their first contribution in #8910
• @fr0mano made their first contribution in #8918
• @meship-starkware made their first contribution in #8931
• @0xcharry made their first contribution in #8939
• @Ocheretovich made their first contribution in #8950
• @strmfos made their first contribution in #8952
• @xiaolinny made their first contribution in #8959
• @0xgordy made their first contribution in #8990
• @bravesasha made their first contribution in #9015
• @changgesi made their first contribution in #9017
• @defiberrys made their first contribution in #9036
• @atorrers made their first contribution in #9078
• @Radovenchyk made their first contribution in #9079
• @AaronAjose made their first contribution in #9077
• @MoNyAvA made their first contribution in #9100
• @atakoraka made their first contribution in #9107
• @IrshadKohl51 made their first contribution in #9109
• @isagi-y22 made their first contribution in #9110
• @zkpepe made their first contribution in #9139

Full Changelog: v2.14.0...v2.15.0

v2.15.0-rc.1

Cairo compiler.

v2.15.0-rc.0

Cairo compiler.

v2.14.1-dev.1

Cairo compiler.

v2.14.1-dev.0

Cairo compiler.

v2.14.0

Breaking Changes

• starknet::secp256_trait::{recover_public_key, is_valid_signature} now check that r and s are in a bounded range.

Other changes

• Added ByteSpan PartialEq + Debug for testing. #8564
• Fixed doc of Product function. #8606
• Made egcd algorithm more flexible to work for signed numbers as well. #8676

Optimizations

Compiler Runtime

• Making casm-builder more efficient. #8573

Gas Usage

• Adding support to felt add mul and sub in constant propogation. #8594
• felt252_div constant propogation support. #8619
• Added const-folding of enums. #8651
• Made const-folding with middle snapshots work. #8652
• Allowed const calculations of felt252 to u256 and u128. #8681
• add support for specailizing functions with partial structs. #8664
• partial specialization for enums arguments. #8678

Code Size

• Optimized Felt252Span deserialization using less panic code. #8656
• Removed unwraps and made them into ? for non-OS-fails. #8663
• Minor code simplification of ecdsa. #8677

New Contributors

• @vastonus made their first contribution in #8570
• @Lil-Duckling-22 made their first contribution in #8565
• @Doryu001 made their first contribution in #8598
• @claudecodering made their first contribution in #8603

Full Changelog: v2.13.1...v2.14.0

v2.14.0-rc.0

Cairo compiler.

v2.13.1

What's Changed

• Made all maps that may have a large number of elements be hash-maps. #8579
• Refactored and further tested storage of Result and Option. #8583
• Updated inv-mod to be consistent with existing u256-inv-mod impl. #8584

Full Changelog: v2.13.0...v2.13.1