chore(release): v1.0.0

[plc-automated-release]

Release v1.0.0

Bumps all workspace packages from v0.5.0 → v1.0.0.

Review the updated CHANGELOG.md for a full list of changes.

---

Merge this PR to trigger tagging and GitHub release creation.

[github-actions]

Release Preview

This is the GitHub release that would be published if this PR were merged now.

• Title: RuSTy PLC Compiler 1.0.0
• Tag: v1.0.0
• Previous tag: v0.5.0

Rendered release

RuSTy PLC Compiler 1.0.0

This release publishes v1.0.0.

Below is the changelog since v0.5.0.

1.0.0 - 2026-06-03

Added

• Add hwmap sidecar (feat: add hwmap sidecar #1731)
• codegen: Embed compiler version in compiled artifacts via llvm.ident (feat(codegen): embed compiler version in compiled artifacts via llvm.ident #1733)

Fixed

• resolver: Enum names should resolve correctly when they collide with pou names (fix(resolver): enum names should resolve correctly when they collide with pou names #1761)
• Only error out on non existing files (not globs) (fix: only error out on non existing files (not globs) #1762)
• validation: Reject THIS. without dereference (fix(validation): reject THIS.<member> without dereference #1729)
• parser: Recover from unexpected tokens in expression position (fix(parser): recover from unexpected tokens in expression position #1709)
• codegen: Emit signext/zeroext on sub-32-bit integer parameters (fix(codegen): emit signext/zeroext on sub-32-bit integer parameters #1708)
• validation: Flag wrong assignment direction at call sites (fix(validation): flag wrong assignment direction at call sites #1710)
• project: Validate file/include paths and reject empty input sets (fix(project): validate file/include paths and reject empty input sets #1713)
• preprocessor: Bind POU-scoped AT addresses to backing _PI* global (fix(preprocessor): bind POU-scoped AT addresses to backing __PI_* global #1737)
• validation: Reject FB-level VAR_TEMP referenced from a METHOD (fix(validation): reject FB-level VAR_TEMP referenced from a METHOD #1746)
• typesystem: Wrong downcast warning when assigning numeric literal to SINT (fix(typesystem): wrong downcast warning when assigning numeric literal to SINT #1753)
• parser: Focused diagnostic for reserved keywords in name slots (fix(parser): focused diagnostic for reserved keywords in name slots #1735)
• Properties now support the REFERENCE TO type (fix: properties now support the REFERENCE TO type #1701)
• linker: Wrap spawn errors with diagnostic context and route long invocations through a response file (fix(linker): wrap spawn errors with diagnostic context and route long invocations through a response file #1722)
• codegen: Drop ptr→aggregate bitcast on by-ref argument pass (fix(codegen): drop ptr→aggregate bitcast on by-ref argument pass #1742)
• codegen: Ptrtoint pointer operands in int binary arithmetic (fix(codegen): ptrtoint pointer operands in int binary arithmetic #1751)
• lowering: Disambiguate per-unit ctor symbols by path hash (fix(lowering): disambiguate per-unit ctor symbols by path hash #1724)

Documentation

• Update AGENTS.md (docs: Update AGENTS.md #1754)

Expected release assets

Assets are uploaded asynchronously from the post-merge Build Linux and Build Windows runs on master.

• plc-linux-x86_64
• plc-linux-aarch64
• plc.exe
• plc-compiler_1.0.0-1_amd64.deb
• plc-compiler_1.0.0-1_arm64.deb
• plc-stdlib_1.0.0-1_amd64.deb
• plc-stdlib_1.0.0-1_arm64.deb
• stdlib-1.0.0.tar.gz
• iec61131std.dll
• iec61131std.lib

Linux packages prefer the native build for each target architecture.

[github-actions]

Build Artifacts

🐧 Linux

Artifact	Link	Size
deb-x86_64	Download	38.4 MB
schema	Download	0.0 MB
stdlib	Download	32.3 MB
plc-x86_64	Download	43.5 MB
deb-aarch64	Download	30.8 MB
plc-aarch64	Download	43.3 MB

From workflow run

🪟 Windows

Artifact	Link	Size
stdlib.lib	Download	4.0 MB
stdlib.dll	Download	0.1 MB
plc.exe	Download	38.3 MB

From workflow run