chore(release): v1.0.5

[plc-automated-release]

Release v1.0.5

Bumps all workspace packages from v1.0.4 → v1.0.5.

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 1.0.5
• Tag: v1.0.5
• Previous tag: v1.0.4

Rendered release

RuSTy PLC Compiler 1.0.5

This release publishes v1.0.5.

Below is the changelog since v1.0.4.

1.0.5 - 2026-09-14

Fixed

• Add missing STRING_TO functions to the standard library (1.0.x) (fix: add missing STRING_TO functions to the standard library (1.0.x) #1904)
• codegen: Null-terminate untyped variadic argument lists (1.0.x) (fix(codegen): null-terminate untyped variadic argument lists (1.0.x) #1888)
• validation: Remove VAR_INPUT {ref} warning (E042) (1.0.x) (fix(validation): remove VAR_INPUT {ref} warning (E042) (1.0.x) #1893)
• stdlib: Backport the no-panic hardening stack (1.0.x) (fix(stdlib): backport the no-panic hardening stack (1.0.x) #1890)
• lowering: Resolve array ctor bounds through the index (fix(lowering): resolve array ctor bounds through the index #1897) (fix(lowering): resolve array ctor bounds through the index (#1897) #1898)
• Counter will no longer count after removing LD or R (1.0.x) (fix: counter will no longer count after removing LD or R (1.0.x) #1879)
• Ensuring unary not validates that it requires a bit or integer (1.0.x) (fix: ensuring unary not validates that it requires a bit or integer (1.0.x) #1865)
• Program retain variables with inline type definitions (1.0.x) (fix: program retain variables with inline type definitions (1.0.x) #1864)
• Pass plain variable arguments to REFERENCE TO inputs by address (1.0.x) (fix: pass plain variable arguments to REFERENCE TO inputs by address (1.0.x) #1847)
• Construct array elements in generated array type constructors (1.0.x) (fix: construct array elements in generated array type constructors (1.0.x) #1832)
• Provide builtin ABS monomorphs for unsigned types (fix: provide builtin ABS monomorphs for unsigned types #1850)
• stdlib: String writers terminate their own output (fix(stdlib): string writers terminate their own output #1817) (fix(stdlib): string writers terminate their own output (#1817) #1834)
• Run the backend at -Oless for unoptimized builds (fix: run the backend at -Oless for unoptimized builds #1821)
• Resolve generic TO_STRING/TO_WSTRING to the correct monomorphization (fix: resolve generic TO_STRING/TO_WSTRING to the correct monomorphization #1805) (fix: resolve generic TO_STRING/TO_WSTRING to the correct monomorphization (#1805) #1829)
• Removed round function(fix: removed round function #1841) (fix: removed round function(#1841) #1842)

Expected release assets

Assets are uploaded asynchronously from the post-merge Build Linux and Build Windows runs on release/1.0.x.

• plc-linux-x86_64
• plc-linux-aarch64
• plc.exe
• plc-compiler_1.0.5-1_amd64.deb
• plc-compiler_1.0.5-1_arm64.deb
• plc-stdlib_1.0.5-1_amd64.deb
• plc-stdlib_1.0.5-1_arm64.deb
• stdlib-1.0.5.tar.gz
• iec61131std.dll
• iec61131std.lib

Linux packages prefer the native build for each target architecture.

[github-actions]

Build Artifacts

🐧 Linux

Artifact	Link	Size
stdlib	Download	33.5 MB
plc-x86_64	Download	43.5 MB
plc-aarch64	Download	43.3 MB
schema	Download	0.0 MB
deb-x86_64	Download	10.9 MB
deb-aarch64	Download	5.4 MB

From workflow run

🪟 Windows

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

From workflow run