v0.63.5

What's Changed

• Fixes mismatched types in ABI cast. by @esdrubal in #6489
• Add tests for propagation of type constraints in type inference by @ironcev in #6502
• Emit unreachable arm warning for OR match arms by @ironcev in #6505
• chore: use fuel-core 0.35.0 and sdk 0.66.4 by @kayagokalp in #6506
• chore: bump to v0.63.5 by @kayagokalp in #6508

Full Changelog: v0.63.4...v0.63.5

v0.63.4

What's Changed

• ci: Benchmark with codspeed by @sdankel in #6481
• Support FuelVM wqxx instructions in ASM blocks by @ironcev in #6484
• Add flag check functions by @SwayStar123 in #6445
• Handle case when Bytes appends to self by @bitzoic in #6308
• Fixes impl self duplicated missing error. by @esdrubal in #6493
• Adds function return type unification. by @esdrubal in #6490
• Implement __contract_ret as diverging and retd as terminator by @ironcev in #6486
• Fixes ABI alias metadata types. by @esdrubal in #6494
• Test for contract address being a complex expression by @xunilrj in #6495
• Add missing docs to primitive_conversions library in standard library by @GearedPaladin in #5627
• Change msg_sender()'s Input::Message from sender to recipient by @bitzoic in #6497
• Bump to v0.63.4 by @IGI-111 in #6503

Full Changelog: v0.63.3...v0.63.4

v0.63.3

What's Changed

• Reduces memory footprint of collecting unifications. by @esdrubal in #6479
• Fix error handling in LSP to guard against empty results from the compiler. by @JoshuaBatty in #6480
• Optimize TokenMap updates and traversals for modified files only by @JoshuaBatty in #6464
• add overflow and unsafe math tests by @SwayStar123 in #6469
• Bump to v0.63.3 by @JoshuaBatty in #6483

Full Changelog: v0.63.2...v0.63.3

v0.63.2

What's Changed

• No limit on the depth of the return path analysis by @jjcnn in #6435
• Fix sway templates by @xunilrj in #6446
• Guarantee only valid bools are being decoded by @xunilrj in #6436
• Optimize manifest directory lookup with efficient caching by @JoshuaBatty in #6444
• Updated the emitted event in the search page by @laishawadhwa in #6454
• Add RUST_BACKTRACE: full to lsp CI tests by @JoshuaBatty in #6457
• std-lib/auth: update in-line docs for caller_address() by @K1-R1 in #6449
• Fixes panic on unwrapping in type_check_trait_implementation. by @esdrubal in #6434
• Add the indoc crate to swayfmt tests for better readability. by @JoshuaBatty in #6450
• Handle Out of Bounds Read In Input Message Data by @bitzoic in #6439
• Fix trait-related type inference propagation bug by @tritao in #6455
• eliminate dead block args by @vaivaswatha in #6459
• chore: remove comment by @sdankel in #6463
• Handle formatting new types in StorageField by @JoshuaBatty in #6451
• Parse error on illegal statement by @jjcnn in #6443
• Better error array numerics by @xunilrj in #6420
• docs: Update debugging_with_cli.md by @sdankel in #6472
• Improves TraitMap performance. by @esdrubal in #6471
• Fixes Numeric type propagation by @esdrubal in #6461
• check if all required generic arguments are valid by @xunilrj in #6462
• Bump to v0.63.2 by @IGI-111 in #6476

New Contributors

• @laishawadhwa made their first contribution in #6454

Full Changelog: v0.63.1...v0.63.2

v0.63.1

What's Changed

• test: add more chunking tests by @kayagokalp in #6433
• fix release workflow by embedding proxy abi to code in plain str by @kayagokalp in #6437
• Bump version to 0.63.1 by @kayagokalp in #6438

Full Changelog: v0.63.0...v0.63.1

v0.63.0

What's Changed

• Remove support for namespace attribute by @IGI-111 in #6279
• Make module name mandatory and private by @jjcnn in #6271
• Cache Build Plans in language server by @JoshuaBatty in #6281
• Forbid configurables in pattern matching and shadowing by @ironcev in #6289
• feat: Enhance forc-deploy UX with dialoguer by @sdankel in #6278
• cache pid lock files to reduce IO operations by @JoshuaBatty in #6297
• Add documentation about Undefined Behavior by @IGI-111 in #6302
• fix: update the document link for Manual Storage Management. by @dima-safin-2025 in #6301
• Add core and std dependency test filtering to the test runner by @tritao in #6299
• chore: correction typos index.md by @osrm in #6303
• Re-pin LSP tests to published version of std and re-enable commented out tests by @JoshuaBatty in #6315
• chore: bump forc-pkg deps and fix clippy warnings by @JoshuaBatty in #6311
• Fix range OOB bug in the language server by @JoshuaBatty in #6314
• Additionally test associated constants by @ironcev in #6349
• Support for slice new syntax &[T] by @xunilrj in #6307
• Correct code_size function implementation by @SwayStar123 in #6304
• Introduce a new symbol resolving pass by @tritao in #5809
• Revert when loading 0 size typed storagevec by @SwayStar123 in #6358
• Slice/Array intrinsics: __slice and __elem_at by @xunilrj in #6282
• Move std-lib StorageKey tests to in-language tests by @bitzoic in #6363
• feat: create and deploy a reference proxy contract for contracts with [proxy] enabled by @kayagokalp in #6069
• Fixes assert in type_check_encode_buffer_empty. by @esdrubal in #6364
• Fixes crash on encode_buffer_append with wrong args. by @esdrubal in #6365
• docs: Update docs for forc-client by @sdankel in #6403
• fix size of configurable buffer for enums by @xunilrj in #6366
• Add error for duplicate struct field initialization by @IGI-111 in #6401
• Fixes unreachable macro crashing compiler. by @esdrubal in #6362
• ASM blocks handling: inlining, DCE, ASM returns without return register by @ironcev in #6404
• Fix broken documentation link by @IGI-111 in #6400
• Fix bugs in memcpyopt by @vaivaswatha in #6359
• Revert when overflow using pow for u8, u16, u32 by @SwayStar123 in #6340
• Allow forc deploy to submit transaction without waiting for commit confirmation by @luisburigo in #6294
• Filter ABI supertrait methods from contract entry generation by @tritao in #6402
• Fix impl self node order dependency pass key collision issue. by @tritao in #6407
• Implement mutability checks for references to aggregate type fields. by @tritao in #6415
• Updates JSON ABI, LDC, BSIZ, BLDD and ED19. by @esdrubal in #6254
• Implement Typed Module Caching by @JoshuaBatty in #6280
• Better checks at type_check_analyze by @xunilrj in #6410
• Update README.md by @sdankel in #6423
• Allow variable length message in ed_verify by @SwayStar123 in #6419
• Increase Safety when introspecting transaction inputs by @bitzoic in #6405
• Increase Safety when introspecting transactions by @bitzoic in #6418
• Increase Safety when introspecting transaction outputs by @bitzoic in #6414
• Update rust version in forc docker image by @Voxelot in #6422
• chore: bump sdk version by @sdankel in #6430
• feat: Implement ldc based automatic contract chunking by @kayagokalp in #6250
• fix: use proxy bin with storage slots in a namespace by @kayagokalp in #6429
• Fix broken forc command docs by @JoshuaBatty in #6424
• Fix scwq instruction and "phantom" error in purity checks by @ironcev in #6432
• chore: bump to 0.63.0 by @sdankel in #6421

New Contributors

• @dima-safin-2025 made their first contribution in #6301
• @osrm made their first contribution in #6303
• @luisburigo made their first contribution in #6294

Breaking changes

• the #[namespace()] attribute is no longer supported. The new namespace syntax is preferred moving forward and the new in keyword usage can be used for backwards compatibility
• Configurables are no longer allowed in pattern matching and shadowing
• There have been significant changes the the ABI specification format
• ed_verify has been changed to support variable length messages
• some std functions now return an Option instead or reverting
• some std functions now return types updated to match the specification
• some std functions have been made private are will no longer be available

Full Changelog: v0.62.0...v0.63.0

v0.62.0

What's Changed

• feat: Print the formatted bytecode size on forc build by @sdankel in #6214
• Inliner shouldn't inline a function into itself by @vaivaswatha in #6218
• better error and dca for configurables by @xunilrj in #6121
• match for string slices by @xunilrj in #6202
• fix: typo in comment for ipfs fetching in forc-pkg by @kayagokalp in #6236
• Add string slices to supported types message in match expressions by @ironcev in #6243
• fix configurable tests by @xunilrj in #6242
• re-enable LDC test by @xunilrj in #6240
• chore: remove snapshot, as accounts are funded by default by @kayagokalp in #6235
• Fix Bytes, Vec and String buffer ownership by @xunilrj in #6142
• Correctly handle Input::Message when calling msg_sender() by @bitzoic in #6231
• Memory usage reduction by @jjcnn in #6249
• Unify AST nodes for parsed and typed impl self and impl trait. by @tritao in #6251
• uncomment update contract update check by @xunilrj in #6247
• Add LRU Session Cache to Reduce RAM Usage by @JoshuaBatty in #6239
• Update index.md by @Olexandr88 in #6261
• Add Output::ContractCreated transaction to Output enum by @bitzoic in #6194
• Implement a map from typed to parsed decl ids in the declaration engine. by @tritao in #6245
• Small code refactor by @ylmin in #6263
• docs: Add Core Library to introduction section of the Sway book by @calldelegation in #6193
• Feature: Reexport using pub use by @jjcnn in #6116
• Add tracing span macro calls to the language server for better debugging by @JoshuaBatty in #6238
• Update index.md by @operagxsasha in #6267
• Use HashSet for error deduplication by @ylmin in #6268
• chore: bump to use fuel-core v0.31.0 and sdk v0.65.1 by @kayagokalp in #6252
• Bump to v0.62.0 by @IGI-111 in #6276

New Contributors

• @Olexandr88 made their first contribution in #6261
• @ylmin made their first contribution in #6263
• @operagxsasha made their first contribution in #6267

Full Changelog: v0.61.2...v0.62.0

v0.61.2

What's Changed

• Improve error messages for namespaced storage fields by @IGI-111 in #6204
• fix: deployment estimation deferred to sdk by @kayagokalp in #6212
• feat: Add helper function for consistent forc output by @sdankel in #6208
• Bump to v0.61.2 by @sdankel in #6213

Full Changelog: v0.61.1...v0.61.2

v0.61.1

What's Changed

• Fixes namespace variant_import for parsed enum declaration variants. by @tritao in #6147
• Fix bug in IRGen for while loops by @vaivaswatha in #6146
• Add Input::Message case to predicate_address() by @bitzoic in #6117
• Make CEI analysis take burn and mint into account by @jjcnn in #6162
• Improving binary size for encoding v1 by @xunilrj in #6096
• fix: fix panic and improve error output in forc-debug by @sdankel in #6165
• docs: Fix nightly storage docs by @calldelegation in #6172
• Use company fork of publish-crates action by @IGI-111 in #6176
• Incomplete escape analysis and referred symbols in IR optimizations by @ironcev in #6175
• Remove storage_vec_to_vec inline tests from sdk-harness by @bitzoic in #6168
• Counter Example Doc Update by @Chester-King in #6164
• Verify that entry block does not have predecessors by @ironcev in #6177
• Update sdk-harness's configurables_in_contract test variable name from CONTRACT_ID to MY_CONTRACT_ID by @bitzoic in #6167
• Cleanup DeclRef references from TypeInfo::Enum and TypeInfo::Struct by @tritao in #6178
• Handle traits when doing namespace item imports. by @tritao in #6189
• Use $one for true in ASM instead of using data section by @ironcev in #6186
• fix: only support hover links for vscode by @sdankel in #6181
• Fix Clippy warnings. by @tritao in #6183
• Fix bug in Bytes::remove and Vec::remove by @vaivaswatha in #6192
• chore: bump fuels-rs to v0.64.0, fuel-core to v0.28.0 by @kayagokalp in #6187
• Fix fn dedup miscompilation leading to MemoryOverflow on Vecs by @xunilrj in #6195
• Add a simple simplify-cfg optimization for assembly by @vaivaswatha in #6197
• Remove deferred monomorphization. by @tritao in #6196
• Fix u256 logarithm rounding errors by @SwayStar123 in #6163
• Fixes method application unwrap panic. by @esdrubal in #6201
• [ASM] Fix bug in modelling defs and uses of WQAM instruction by @vaivaswatha in #6203
• Enables tests that prove #418 is solved. by @esdrubal in #6206
• Refactor StorageVec's load_vec() and store_vec() to handle types of less than 8 bytes by @bitzoic in #6166
• Bump to v0.61.1 by @IGI-111 in #6207

New Contributors

• @Chester-King made their first contribution in #6164

Full Changelog: v0.61.0...v0.61.1

v0.61.0

What's Changed

• Unify arguments before desugaring contract call by @xunilrj in #6053
• chore: fund test suite's account by default in local-test node by @kayagokalp in #5935
• chore: fix some comments by @cuishuang in #5989
• Show forc plugin path warning only in verbose mode by @sdankel in #6004
• fix: fund default signer account in ci by @kayagokalp in #6055
• Add examples on how to import storage types to the book by @bitzoic in #6051
• Implement EqWithEngines and PartialEqWithEngines for parsed declarations by @tritao in #6054
• Rename module terminology to program by @JoshuaBatty in #6056
• chore: Improve the error message for unresolved manifest reference by @sdankel in #6061
• Add generated bytecode size to verbose test output by @ironcev in #6063
• feat: Add primitive types to forc-doc by @sdankel in #6032
• Tuning the optimizer pipeline by @vaivaswatha in #6072
• feat: Updating all templates to rust v0.62.0 by @calldelegation in #6067
• Bash script to help benchmark the compiler by @xunilrj in #6076
• Add EnumVariant parsed decl and minor refactors to namespace-related code by @tritao in #6062
• Set code owners by @IGI-111 in #6078
• Unify parsed and typed symbols namespace maps. by @tritao in #6070
• Fix code owner precedence by @IGI-111 in #6082
• Refactor trait handling when doing namespace item imports. by @tritao in #6080
• Do not panic when there is auto impl type check by @xunilrj in #6094
• chore: bump fuel-core to v0.27.0 by @kayagokalp in #6090
• fix: remove Forc.lock files from template projects by @sdankel in #6101
• chore: add issue templates by @sdankel in #6097
• Update codeowners application-dev to swayex by @bitzoic in #6095
• Automatically import contract return type by @xunilrj in #6089
• Add primitive conversions submodules to the prelude by @bitzoic in #6105
• Increase test coverage on std-lib by @bitzoic in #6087
• Faster access for configurables by @xunilrj in #6058
• Fix issue with name clash on auto implementation of AbiEncode and AbiDecode by @jjcnn in #6044
• Update Inputs library return types to match VM specs by @bitzoic in #6108
• Fix mod by zero constant folding by @xunilrj in #6112
• Use immediates instead of data section when possible by @vaivaswatha in #6098
• Adds method and function deduplication to frontend. by @esdrubal in #5967
• Change StorageMap's remove() to use sha256(key, self.field_id()) instead of sha256(key, self.slot()) by @bitzoic in #6135
• Fix doc comment by @GearedPaladin in #6138
• Unify namespace import logic for parsed and typed declarations by @tritao in #6057
• chore: fix some comments by @tsinghuacoder in #6139
• Storage name based slots and namespaces. by @esdrubal in #6064
• Resolve memory overflow when b256::TryFrom<Bytes> is not 32 bytes by @bitzoic in #6136
• Support for string slices in contracts/predicates/scripts by @xunilrj in #6079
• Bump to v0.61.0 by @IGI-111 in #6144

Breaking Changes

• now using fuel-core 0.27.0
• Storage slot calculations use a new formula to enable namespacing syntax, please consult the documentation about storage namespacing and the in keyword for more details
• Inputs and return types have been updated according to VM spec changes

New Contributors

• @cuishuang made their first contribution in #5989
• @tsinghuacoder made their first contribution in #6139

Full Changelog: v0.60.0...v0.61.0