Changelog

Release notes for inauguration — the in CLI, the crates.io crate inauguration, and GitHub release binaries.

Install

cargo install inauguration
# or, from a checkout:
./install.sh

Prebuilt tarballs (Linux x86_64, macOS aarch64) and SHA-256 sidecars: GitHub Releases.

This page is written for humans and coding agents. Each version lists why it mattered, not every commit. Git history remains authoritative for drive-by tests and refactors.

0.9.8 — 2026-09-16

Current crates.io and GitHub release. Tag v0.9.8.

This is the first public ship after a long stretch of compiler work on master that never made it into 0.9.6 (July). Treat 0.9.8 as the real 0.9-line feature drop.

Compiler correctness (why v0.9.7 never shipped)

Dead-function elimination (remove_dead_functions) kept only kernel_entry / kernel-entry when --entry was omitted. On AArch64 hosts (macOS CI, native JIT), a module whose only function was fn main was emptied before lowering:

jit-lowering-failed: native-lower: module has no functions

Linux x86_64 CI does not take that AArch64 JIT path, so the bug hid until the GitHub Release prerelease gate on macos-latest. 0.9.8 keeps main as an implicit DCE root. Related earlier fix: unused let bindings whose initializer calls a function are no longer DCE'd (side-effecting calls must run).

Packages and integrity

npm shasum: ArtifactChecksum::Sha1Hex hashed the archive with SHA-256. Registry shasum is SHA-1, so verification could never succeed. Now uses sha1::Sha1.
Go modules: zip checksums are verified with the Go h1: dirhash (SHA-256 of sorted file hashes), not a whole-archive digest.
Invoke allowlist: package export adapters may spawn echo, node, python3, cargo, go, true — not sh. The go:fiber sample adapter is go run ./inauguration-invoke (argv, no shell).
Archives: tar extraction rejects .., absolute paths, symlinks, and hardlinks. Zip extraction uses the zip crate's path sanitizer (zip-slip).
Plugins: in plugin run passes the script path as an argument to bash -- (no bash -c interpolation). Plugin names and workspace targets are path-contained.

Emit profiles and dual-emit

Three orthogonal profiles:

Profile	Intent
`default`	Conventional optimize + emit
`harden`	Anti-decomp: opaque predicates, junk pads, CFG dispatch-lite, MBA-ish pads. For samples, not the runtime artifact
`lean`	Aggressive inlining / shortest internal calls

--dual-emit / --harden-out writes a runtime artifact (default or lean) plus a separate harden sample. Combining --harden with dual-emit is rejected so the runnable binary is never the anti-decomp shape.

Polyglot fronts

42 registered languages on the language-support matrix (in languages --json).
First-party Tree-sitter grammars for Crystal, Nim, and LOLCAT; COBOL / Fortran / LOLCODE eval wrappers.
Speculative fronts (C#, Dart, Elixir, …) stay behind --features extended / parse-extended.
Tree-sitter extract guards malformed operators instead of panicking.

JIT / native

x86_64 JIT resolves stdlib externs and string returns; snake_case stdlib calls (process_run, etc.) normalize to in_* wrappers.
in eval / in execute propagate nonzero JIT exit status.
Cached script executions are re-run (the compile cache must not skip side-effecting eval).
Static libraries keep all functions (not only the entry) so unused helpers remain linkable.
Thumb-2: branch/div/shift/function-address encodings and scratch-slot binary ops.

Process spawn

.in process_run is argv-style (Command::new + args via external_guard). No /bin/sh -c. Preview daemon sockets use shorter names.

Docs site

Moonshine (Bun + Crepus IR) landing page at inauguration.tsc.hk. docs-gen turns repo docs/*.md into /docs/*.html. Cloudflare Pages deploy of docs-site/dist.

CI

Pull-request CI is permissions: contents: read. Checkouts use persist-credentials: false. Amp orb .agents/setup / .agents/resume install rustup + fetch in-cli lockfile.

Artifacts

in-linux-x86_64.tar.gz + .sha256
in-macos-aarch64.tar.gz + .sha256

Rollback: previous published crate is 0.9.6. Yank 0.9.8 with cargo yank inauguration --vers 0.9.8 if needed.

0.9.7 — skipped (2026-09-16)

Tag v0.9.7 was pushed. The Release workflow failed the macOS prerelease cargo test gate (see 0.9.8 DCE / main). No GitHub assets, no crates.io 0.9.7. Do not install this tag.

0.9.6 — 2026-07-30

Last published crate before 0.9.8.

ELF symbol_index avoids redundant string allocations.
docs-gen parallelizes recursive markdown reads (rayon).

Small patch; most compiler work after this landed only in 0.9.8.

0.9.5 — 2026-07-29

Lockfile / version bump on the 0.9 line. No user-facing compiler change vs 0.9.4.

0.9.4 — 2026-07-29

Release checksums: GitHub .sha256 asset names match the tarball names (in-linux-x86_64.tar.gz.sha256, …) so install.sh can verify.
CI: cargo fmt --check and --locked on test/clippy.
i386: never save/use r8–r15 in protected mode (those registers do not exist).
Security: in_process_run no longer shells; daemon shutdown does not trust a PID file blindly.
docs-gen: cache parsed markdown HTML.

0.9.3 — 2026-07-23

tree-sitter-holyc 0.1.2 and lockfile refresh. HolyC remains an active (always-compiled) front.

0.9.2 — 2026-07-23

.in nested index expressions. Bracket-depth tracking in in_lang_parse so xs[i][j] is one index chain, not a truncated parse.

0.9.1 — 2026-07-23

Thumb lowerer decomposition and encoding fixes (follow-up to 0.9.0's Thumb feature set). Prefer 0.9.2+ if you emit thumbv8m.

0.9.0 — 2026-07-23

First 0.9 crate. Freestanding Thumb-2 (.in → thumbv8m.main-none-eabi) grew from a stub into a real lowerer:

extern calls with R_ARM_THM_CALL relocations in static libs
structs and field assignment
fixed-size array locals
more than four AAPCS arguments
short-circuit && / || and break
MMIO load/store builtins
Thumb branch offsets use PC+4 for T1 and T2

Also in the 0.8 → 0.9 window (published as 0.9.0):

Core IR → C source sink restored and widened (Vec layout, multi-catch, capturing closures)
Core IR → Go / Rust source sinks
Compile-cache rebuilds when the report exists but the artifact file is missing

Docs: freestanding-thumbv8m.md, in-language.md.

0.8.0 — 2026-07-18

Self-host / lowering completeness wave. The Rust-on-Core-IR path moved from “parse only” toward emitting 0 for remaining unsupported patterns so self-host compile could proceed instead of hard-failing:

~100% lowering coverage on several Rust sample projects; library-mode modules (no main)
struct field limit raised (eventually 32 ABI slots); nested field access; Self resolution
Vec layout: with_capacity, iterators, tuple/ref/wildcard patterns, aggregate elements
JS/TS/Python extract: === / !==, void / typeof, in, ??, and, ++
C tree-front: relax parse-error abort so recoverable C still lowers

This release is the “make self-host not die on every stdlib shape” cut. 0.9.x then specialized Thumb and emit profiles.

0.7.13 — 2026-07-15

Opaque type fallback and Self resolution for JIT
Speculative Tree-sitter parsers gated behind parse-extended (default in binary stays smaller)
Graceful function skipping for self-host JIT
Class JIT + match wildcard
remove_dead_functions receives the entry name (precursor to the 0.9.8 main keep)
crates.io publish documented as local, not CI

0.7.12 / 0.7.11 — 2026-07-15

Lockfile hygiene. 0.7.11 removed blake3 from the crate graph.

0.7.10 — 2026-07-14

inlang kebab-case identifiers (foo-bar instead of forcing foo_bar). Breaking for sources that relied on underscore-only names in the .in surface.

0.7.9 — 2026-07-13

Maintenance cut on the 0.7 native/vector line (see 0.7.8–0.7.4).

0.7.8 — 2026-07-08

Removed the v-native experiment. Testing tweaks. V remains a Tree-sitter front (--features extended), not a separate native backend.

0.7.7 — 2026-07-06

Release-gate fix: macOS native executables and the Linux job in the tag workflow. Needed so 0.7 binaries actually attached.

0.7.6 — 2026-07-06

Lockfile bump only.

0.7.5 — 2026-07-06

in --debug (and related flags) so default JIT runs stay quiet; verbose lowering/slop is opt-in.

0.7.4 — 2026-07-05

Docs-site became a real product:

docs-gen builds the full sidebar from all markdown before writing pages (nav no longer shrinks per page)
[targets.docs] hook, CNAME, https://inauguration.tsc.hk
GitHub Pages workflow at the time (hosting later moved to Cloudflare Pages)

Native/vector work in this era (0.7.4–0.7.10), still relevant:

Multi-file .in + extern C linking (UNDEFINED ELF symbols)
Rust Vec / iterators / Result / format macros / JSON string escaping
Nested call-arg temps and caller-save vs stack-arg ordering on native

Older than 0.7.4

Tags v0.7.3 … v0.7.0 and earlier exist on GitHub for archaeology. The public site and crates.io story starts in practice at 0.7.4 (docs + tsc.hk) and 0.9.0 (Thumb + 0.9 crate line).

Prefer 0.9.8 for current in.