v1.2.0

What's Changed

• feat(units): compile-time dimensional-analysis core + scientific-receipt integration by @HarperZ9 in #15
• Style: spectrum banner + feature-first README header by @HarperZ9 in #17
• Release v1.2.0 by @HarperZ9 in #18

Full Changelog: v1.1.0...v1.2.0

buildlang 1.1.0 - accountable scientific compute

Minor release. A second, independent receipt family beyond the capability
(check) receipts: the scientific-runtime receipt
(buildlang-scientific-runtime-receipt/v0).

• buildc run --emit-receipt <path> --invariant <NAME> runs a numeric .bld
  kernel, checks a stated invariant over its output series, and seals a
  re-checkable JSON receipt. buildc receipt verify RE-RUNS the program and
  re-derives the verdict (typed failure_class, verdict-gated exit codes).
• Six invariants, each a fixed re-checked tolerance with a paired
  positive/negative kernel: energy-monotone, conservation, bounded
  (discrete maximum principle), energy-identity (a quantitative energy-balance
  residual), relation (--columns N, verifier-compared columns), and
  conserved-band (approximate conservation, e.g. a symplectic integrator).
• buildc receipt export emits witnessed measurement rows.

Backward compatible: run without --emit-receipt is byte-identical to 1.0.x.
Honest scope: the receipt witnesses the observed output series, not model
correctness or any physical law (NOT_A_NEW_PHYSICAL_LAW). C stays the only
production-verified backend. Install: cargo install buildlang. Details:
docs/SCIENTIFIC-RECEIPT.md.

QuantaLang v1.0.0 — The Effects Language

QuantaLang v1.0.0

The first release of the QuantaLang compiler.

What's included

• quantac.exe — Windows x86-64 compiler binary (4.3 MB)
• Compiles .quanta source files to C, HLSL, GLSL, and experimental backends

Highlights

• 81K lines of Rust, 604 tests passing, zero unsafe in compiler core
• 15 programs compile including a 4,559-line SQL database engine
• Self-verifying color science — CIE 1976 Lab + OKLab output matches published standards
• CI verified — clippy, rustfmt, cargo test, end-to-end compilation, self-checking binary

Quick start

quantac hello.quanta          # Compile and run
quantac hello.quanta -o out.c # Compile to C
quantac --target hlsl shader.quanta -o shader.fx  # Compile to HLSL

Verified programs

Program	LOC	Description
db.quanta	4,559	SQL database with lexer, parser, executor, WAL
color.quanta	199	sRGB → XYZ → Lab → OKLab converter
color_test.quanta	121	Self-verifying color science (12/12 pass)
jq.quanta	1,048	JSON query tool
awk.quanta	876	Text processing
codegen.quanta	2,490	Code generator

Requirements

• Windows 10/11 x86-64
• A C compiler (MSVC, gcc, or clang) for native binary output