Changelog

v0.3.0 — 2026-08-02

CLI Engine (Rust)

New Features

• Expanded Language Support — 9 first-class languages/formats supported: Rust (.rs), JavaScript (.js, .jsx, .mjs, .cjs), TypeScript (.ts, .tsx), Python (.py, .pyi), Java (.java), C (.c, .h), C++ (.cpp, .hpp, .cc, .cxx, .h++), Go (.go), and JSON (.json, .jsonc).
• Native Git Diff Driver — Added symtrace git-diff-driver subcommand for native integration into git config and .gitattributes.
• Path Glob Filtering — Filter diff analysis using --path <GLOB> (-p), allowing targeting of specific file patterns.
• Positional Argument Defaults — Running symtrace with no arguments automatically defaults REPO_PATH to ., COMMIT_A to HEAD~1, and COMMIT_B to the working tree.
• Staged Index Comparison — Support for --staged / --cached flags to compare staged index files against COMMIT_A.
• Interactive Shell Pager — Automatic output piping to $GIT_PAGER / $PAGER (less -RFX) for interactive TTY execution.
• Configuration File Loader — Hierarchical loader for .symtracerc and symtrace.toml TOML config files (CLI Flags > Repo Config > User Config > Defaults).
• ANSI Color Controls — Added --color <auto|always|never> flag and [output] color config setting respecting NO_COLOR.
• Dual-Path Git Rename Tracking — Retains both old_path and new_path across file rename events.

Security & Provenance

• Enforced zero unsafe Rust (#![deny(unsafe_code)]).
• Sigstore/Cosign keyless OIDC signing, SPDX SBOM (symtrace.spdx.json), and GitHub Artifact Attestations added for release assets.

Version Updates

• Cargo.toml: 0.2.0 → 0.3.0

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VS Code Extension (v0.3.0)

New Features

• Updated compatibility with Symtrace core engine v0.3.0.
• Expanded language support in VS Code for C, C++, Go, and JSON (.c, .h, .cpp, .hpp, .go, .json).
• Added extension settings for --path glob filtering (symtrace.pathGlob) and --color terminal settings (symtrace.color).
• Improved welcome view with updated language matrix.
• 4-tier binary resolution strategy (symtrace.path config → system PATH → cached → GitHub releases auto-download).

Version Updates

• vscode-symtrace/package.json: 0.2.0 → 0.3.0

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v0.2.0 — 2026-03-20

VS Code Extension

• Activity bar panel — Dedicated symtrace sidebar with a welcome view.
• Interactive webview report — Full HTML diff report with collapsible file cards, similarity progress bars, and CSP nonce enforcement.
• Inline editor decorations — 5 color-coded operation annotations rendered directly in open files.
• Git commit picker — QuickPick UI for selecting any two commits or comparing a commit against its parent.
• Auto-download binary — 4-tier resolution for seamless binary acquisition.
• Side-by-side diff view — Compare old vs new file content via git show content provider.
• Tree view — Browse operations per file with classification badge, summary, and performance metrics.

CLI Engine (Rust)

• Cache directory Unix permissions set to 0o700 (owner-only).
• Repository path validation with explicit is_dir() checks.
• Dynamic version generation via env!("CARGO_PKG_VERSION").
• Graceful Mutex poisoning recovery in AstCache and TreeCache.

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v0.1.1 — 2026-01-15

• Initial public release of the CLI engine with AST-based semantic diffing, tree-sitter language support, and JSON output format.