v2.7.0-dev.0

Cairo compiler.

v2.6.3

Bug Fixes

• Fix for remapping optimization. #5243

Full Changelog: v2.6.2...v2.6.3

v2.6.2

Bug Fixes

• Fix cfg attribute for TEST_CLASS_HASH. #5219

Full Changelog: v2.6.1...v2.6.2

v2.6.1

Bug Fixes

• Removing special handling for struct deconstruct in Sierra-Gen, invalidates known stack, to match Sierra. #5205

Full Changelog: v2.6.0...v2.6.1

v2.6.0

This is the Cairo version associated with Starknet 0.13.1. Contracts written with 2.6.0 are not declarable on Starknet until the upgrade.

Major Updates

• Added support for gas coupons.
  • Gas coupons are a way to pay for calling a function, in a different place then the actual function call.
  • Allows support for recursive destructs (as we can hold such a coupon for the recursive destruct call in the recursive object).
  • Only available with experimental flags.
• Support for complex consts (Non-Zero, struct, enum).
• More aggressive function inlining heuristics.

New Feautres

• Better manual gas handling - if gas is handled manually - gas withdrawal is not automatically added. #4880
• Added if-let expression support.
• Added support for underscore pattern in match on tuples. #4996
• Add cmp::minmax function by @delaaxe in #4981
• Added while let support.
• Add remaining assert_xx! comparison test macros by @iamvukasin in #4936
• Add TryInto<u512, u256> by @delaaxe in #5031
• feat: add num::traits::ops::OverflowingAdd trait by @enitrat in #4988
• feat: OverflowingSub trait by @enitrat in #5164
• feat: OverflowingMul trait by @enitrat in #5172
• feat: wrapping traits by @enitrat in #5175
• Fixed array support [1, 4, 5] of type [felt252; 3].
  • No support for conversion into a span for Index access yet, basically equivalent to (felt252, felt252, felt252) for the time being.

Optimizations

• Improved performance for ecdsa. #4985
• Add split_structs optimization - preventing carry of full structs merges due to partial changes. #5034
• Add scrub units optimization.

Bug Fixes

• if let inside loops properly works. #5016
• Fix bug in local variables aliasing. #5028
• Fixed struct formatting. Closing issue #5032. #5062
• Fix enable ap tracking detection bug. #5073
• fix: enum store derive by @enitrat in #5191

Other updates

• Pluralize "test" when needed in tests info output by @kwkr in #5080
• docs: update reserved keywords by @enitrat in #5125
• fixed typo by @zhaichuankai in #5153

New Contributors

• @delaaxe made their first contribution in #4981
• @iamvukasin made their first contribution in #4936
• @thor314 made their first contribution in #5030
• @kwkr made their first contribution in #5080
• @zhaichuankai made their first contribution in #5153

Full Changelog: v2.5.4...v2.6.0

v2.6.0-rc.1

New Features

• Support for non-zero consts at the Sierra level.
• const_as_immediate in Sierra as an addition to the existing const_as_box.
• Added while let support.
• Add remaining assert_xx! comparison test macros by @iamvukasin in #4936
• Add TryInto<u512, u256> by @delaaxe in #5031

Optimizations

• Add split_structs optimization - preventing carry of full structs merges due to partial changes. #5034

Bug Fixes

• if let inside loops properly works. #5016
• Fix bug in local variables aliasing. #5028

New Contributors

• @iamvukasin made their first contribution in #4936
• @thor314 made their first contribution in #5030

Full Changelog: v2.6.0-rc.0...v2.6.0-rc.1

v2.5.4

Bug fixes

• Fixed struct pattern formatting. Fixes issue #5032. #5062
• Added pub for storage member modules. #5065
• Prevented pub construct cancellation in cases of differing user types. #4938

Full Changelog: v2.5.3...v2.5.4

v2.6.0-rc.0

This is the Cairo version associated with Starknet 0.13.1. Contracts written with 2.6.0 are not declarable on Starknet until the upgrade.

Major Updates

• Added support for gas coupons.
  • Gas coupons are a way to pay for calling a function, in a different place then the actual function call.
  • Allows support for recursive destructs (as we can hold such a coupon for the recursive destruct call in the recursive object).
  • Only available with experimental flags.
• Support for const simple value, as well as wrapping structs and enums of these in Sierra.

New Feautres

• Better manual gas handling - if gas is handled manually - gas withdrawal is not automatically added. #4880
• Added if-let expression support.
• Added support for underscore pattern in match on tuples. #4996
• Add cmp::minmax function by @delaaxe in #4981

Optimizations

• Improved performance for ecdsa. #4985

New Contributors

• @delaaxe made their first contribution in #4981

Full Changelog: v2.5.3...v2.6.0-rc.0

v2.5.3

Bug Fixes

• Allow renaming a variable twice as it might happen in some cases. #4967

Full Changelog: v2.5.2...v2.5.3

v2.5.2

Bug Fixes

• Fixed execution order of struct-construct to stated member ordering. #4947
• Fixed while formatting. #4958
• Fixed bug in optimizing out code. #4961

Full Changelog: v2.5.1...v2.5.2