Release Notes

1.25.0 (2026-10-26)

Bug Fixes

• aix: lower ¬ to IRx's ! operator (#120) (c17f0cd)
• arxjit: preserve Python expression semantics in lowering (#114) (0a68b0b)
• stdlib: validate integer helper boundaries (#137) (3695ef6)
• Update AGENTS.md (#113) (641eb1a)

Features

• add Arrow-backed CSV I/O and checked DataFrame conversion (#130) (ca93587)
• add nullable Series operations and rich DataFrame schemas (#133) (7ee36fc)
• add Python-style exceptions across compiler and runtime (#139) (e65e38c)
• Add support for file management (#122) (877651d)
• Add support for keyword argument for method and function calls (#125) (7be3b76)
• arxjit: lower a validated function's shell to an astx module (#107) (b8e82b1), closes #99
• arxjit: lower comparisons and boolean operators to astx (#112) (e6ba880)
• arxjit: lower expressions to astx (#109) (b011728), closes #107 #107
• arxjit: resolve a compilable signature from Python annotations (#103) (61d48c2)
• enforce lossless promotion and checked arithmetic (#138) (9e4d9a5)
• expose Arrow IPC, C Data/C Stream, and TCP interoperability in Arx (#128) (23e1e9b)
• extend Parquet I/O and nullable DataFrame support (#132) (8abddd3)
• harden compiler ownership and production readiness (#115) (84aa7a1)
• Implement parquet handling (#131) (97589f9)
• implement scoped lifecycle plan (#123) (7cc0b3e)
• Improve File class (#124) (93132fc)
• stdlib: add CSV and Parquet modules with DataFrame I/O (#135) (b8c7e0d)
• support native dependencies for external Arx packages (#126) (f1cda76)

Unreleased

Python-inspired exceptions (breaking)

• raise, ordered except handlers, else, and finally now propagate across generated calls. Builtin and single-inheritance user exception classes use ordinary nominal identities; causes and dynamic bare re-raise are supported.
• Checked numeric, assertion, bounds, file, and Arrow/CSV/Parquet failures are catchable. Finalizers and owned-resource cleanup run before propagation; implicit cleanup preserves a primary failure and records secondary failures.
• try, except, finally, and raise are reserved keywords. ASTx now models cause/else clauses and qualified handler references; ThrowStmt.get_struct() names its children. Empty handler type lists are not catch-all handlers.
• Generated functions and runtime callbacks use a context/status/result-slot ABI; rebuild all native producers and consumers together. Ordinary external C signatures remain unchanged. Uncaught failures use structured exception reports; ArxPy exposes them as execution-result data, not Python exceptions.
• Protected regions spanning generator suspension, Python traceback mutation, exception groups, asynchronous exceptions, and ArxJIT exception lowering remain unsupported. See the support boundary.

Checked numeric promotion (breaking)

• Numeric promotion and implicit conversions are now lossless across the whole source domain. Mixed signed/unsigned comparisons no longer reinterpret negatives; combinations without a common domain require an explicit cast.
• Integer arithmetic and numeric casts now fail on out-of-range results in all builds. Source literals retain context and signed minima until type checking. math.square preserves its selected type and fails on overflow; widen its input or explicitly select a wider specialization before computing.
• Use wrapping_add, wrapping_sub, wrapping_mul, and wrapping_cast only where modulo arithmetic is intended. Ordinary narrowing no longer truncates silently. Nonidentity Series/tensor casts are explicitly unsupported.
• ArxJIT lowering shares IRx numeric promotion; integer source literals use i32-then-i64 inference and must remain exact in floating contexts. Python @jit fallback and the reserved int annotation (i64) are unchanged.
• ASTx contextual numeric nodes are LiteralInteger and LiteralFloat, in astx.literals. LiteralFloat accepts exact decimal text or Decimal, not Python float. These replace SourceInteger/SourceFloat without aliases. IRx preserves literal payloads and resolves types and rounded values only in semantic metadata, avoiding decimal-to-f32/f16 double rounding.
• Direct ASTx/IRx clients must analyze numeric nodes before lowering. Arithmetic and conversion plans, including union storage, are authoritative sidecars. See the numeric safety contract.

Integer helper safety and templates

• range now terminates without wrapping when a step crosses an i32 endpoint; it still returns an eagerly allocated list[i32].
• stdlib.math scalar helpers now use a shared signed-integer template bound for i8, i16, i32, and i64, preserving the selected result type.
• stdlib.math.abs on the selected type's minimum now fails checked arithmetic; clamp with reversed bounds raises AssertionError; abs overflow raises OverflowError. These failures can be handled by exception statements.

Migration notes

• Math helpers no longer convert every call to i32. Inferred arguments must have the same concrete signed type; use casts or explicit specialization, such as math.min<i64>(small, wide), when mixing widths. Floating-point, unsigned, Boolean, and nullable specializations remain unsupported.
• CSV and Parquet operations live in stdlib.csv and stdlib.parquet; stdlib.arrow retains shared schemas, batches, and IPC. Use CSVStream and ParquetStream for explicit sessions instead of the removed CSV and Parquet class names. No compatibility aliases are provided. Module-level read_csv/write_csv and read_parquet/write_parquet remain the eager path.

1.24.1 (2026-08-05)

Bug Fixes

• Fix arxpy release (#106) (66de68d)

1.24.0 (2026-08-04)

Bug Fixes

• Improve the syntax.json definition (#83) (7e2eccc)

Features

• Add initial version of aix (#84) (008a7dd)
• arxjit: add clear errors when source extraction is unavailable (#98) (0cc3c12)
• arxjit: add Python-subset validation for decorated functions (#99) (8fb8ffc)
• arxjit: add scalar type and signature API (#91) (7442764)
• arxjit: add source extraction for decorated functions (#96) (f2580d5)
• arxjit: add source extraction for decorated functions (#96) (77536dc)
• arxjit: add structured diagnostics and the public error hierarchy (#95) (b6b35e0)
• arxjit: add the @jit decorator + Python-to-ASTx design notes (#92) (f3e8f3b)
• arxjit: reject methods and make the rejection matrix exhaustive (#102) (2fcd661)
• arxjit: scaffold arxjit JIT decorator package (#90) (48508c3)
• irx: add utf8 and large_utf8 string columns to record batch (#93) (31c409c)
• pyarx: add error and diagnostic layer (#86) (3c3602c)
• scaffold pyarx Python API package (#85) (336eabf)

1.23.1 (2026-04-29)

Bug Fixes

• Fix the config dependencies format (#81) (309091a)

1.23.0 (2026-04-28)

Features

• config: Add support for requires-arx in the .arxproject.toml (#79) (d0ab513)

1.22.0 (2026-04-28)

Features

• Improve the discovery of installed libraries (#78) (c00776d)

1.21.0 (2026-04-28)

Features

• Add type alias, builtin functions about typing (#77) (87b7e28)

1.20.0 (2026-04-27)

Features

• Add support for dataframes/series (#75) (bbc76e4)
• Standardize unsize types for collections/tensors/dataframes etc (#76) (99bf4f2)

1.19.2 (2026-04-27)

Bug Fixes

• Move irx.astx wrappers back to astx (#74) (0c37e1b)

1.19.1 (2026-04-27)

Bug Fixes

• Fix readme files (#73) (48df1fe)

1.19.0 (2026-04-26)

Features

• Add initial version for monorepo for Arx, IRx, and ASTx (#72) (d7a6bcf)

0.16.0 (2026-04-25)

Features

• Add initial stdlib (#67) (3e74ca7)
• Add support for NDArray (#66) (d473ae3)
• Create initial structure for builtins (#69) (5f7bb17)
• Move from ndarray to tensors with arrow c++ (#70) (c2f68e8)

Unreleased

Features

• migrate Arx tensor syntax to IRx Tensor APIs and Arrow C++ runtime terminology

0.15.0 (2026-04-22)

Features

• align Arx surface syntax with IRx array-first naming (#65) (b7ae1b1)
• Improve lexer layout; Update syntax.json (#64) (a3e6285)

0.14.0 (2026-04-21)

Bug Fixes

• parser: harden template call parsing (#62) (8f1a5ff)

Features

• Split Parser into multiple files with mixin (#63) (e704fb6)

0.13.0 (2026-04-20)

Features

• Improve arx settings for build (#61) (fba708a)

0.12.0 (2026-04-20)

Features

• Improve the import statement (#59) (7199c83)

0.11.0 (2026-04-19)

Features

• Improve usage of none type; fix tests (#58) (3e52e6e)

0.10.0 (2026-04-18)

Features

• settings: Add support for dependency-groups (#57) (926084b)

0.9.0 (2026-04-18)

Features

• Add typing support with py.typed (#56) (4045c41)

0.8.0 (2026-04-18)

Features

• Improve arx.settings to handle requirements fro arxpm (#55) (c18d52e)
• Improve test configuration (#54) (b97c9eb)

0.7.0 (2026-04-18)

Features

• Improve unknown subcommand handling; add settings API (#53) (701bd78)

0.6.1 (2026-04-18)

Bug Fixes

• Fix arx test implementation (#52) (4fe9e85)

0.6.0 (2026-04-18)

Features

• testing: preserve shared top-level declarations in arx test wrappers; Add assert statement (#51) (83a6591)

0.5.0 (2026-04-16)

Features

• Add support for import/import-from (#50) (08c53ab)

0.4.0 (2026-04-16)

Features

• Add support for classes (#49) (7c8b073)

0.3.4 (2026-04-02)

Bug Fixes

• correct _default_value_for_type for temporal and unsupported types (#36) (93d7b13)
• refactor: Update irx and update its usage; rename classes (#39) (c95c47c)

0.3.3 (2026-03-06)

Bug Fixes

• Update astx and irx; mermaid is optional now (#35) (37b3415)

0.3.2 (2026-03-06)

Bug Fixes

• Fix compilation issues with PIE (#34) (4d043b2)
• Returning type is now required (#33) (938a8b1)

0.3.1 (2026-03-06)

Bug Fixes

• Fix typing, tests, print, system; add more tests (#32) (21e4639)

0.3.0 (2026-03-06)

Features

• Add support for loops, cast, print, datatypes, etc (#31) (3b9b27a)
• syntax: Support for Docstring syntax (#29) (2bb1f8b)

0.2.0 (2025-08-07)

Bug Fixes

• Fix usage of FunctionCall (#15) (f7f61c0)

Features

• Add support for blocks of nodes (#6) (1fd099f)
• Move the AST output to YAML format (#7) (6a8e10f)
• Support multiple input files (#8) (ad31064)
• Use ASTx and IRx as core libraries for AST and code generation (#14) (b730859)

0.1.1 (2023-06-26)

Bug Fixes

• Change package name to arxlang (#2) (e30c937)
• Fix semantic release configuration (#5) (78ca1df)
• Fix the documentation issues (#3) (9ec65a3)
• Fix the semantic release workflow (#4) (b5fb75c)