chore: Release v3.22.0

Hero Example Achievement:
- data_analysis_combined.py compiles AND runs
- Complex data science scripts now work end-to-end

Bug Fixes:
- DEPYLER-1168: Call-site clone insertion for reused variables
- DEPYLER-1169: List index assignment (vec[i]=x not vec.insert())

Metrics:
- Compile rate: 40.6% (130/320)
- Hero runtime: <10s

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: noahgift

CHANGELOG.md

@@ -2,6 +2,49 @@
 
 All notable changes to this project will be documented in this file.
 
+## [3.22.0] - 2025-01-18
+
+### 🎯 Hero Example Achievement
+
+**data_analysis_combined.py now compiles AND runs!**
+
+This release marks a significant milestone: complex Python data science scripts
+with multiple function calls, statistical calculations, and data transformations
+now transpile to working Rust binaries.
+
+### 🔧 Bug Fixes
+
+#### DEPYLER-1168: Call-Site Borrowing Heuristic
+**Impact**: Fixes E0382 "use of moved value" errors
+**Root Cause**: When a variable was passed to a function that takes ownership,
+but the variable was used again later in the same scope, Rust would error.
+
+**Solution**: Added look-ahead analysis during code generation:
+- Track variables used after current statement (`vars_used_later`)
+- When function takes ownership and variable is reused, insert `.clone()`
+- Example: `normalize_data(dataset.clone())` preserves `dataset` for later use
+
+**Files Changed**:
+- `context.rs`: Added `vars_used_later: HashSet<String>`
+- `func_gen.rs`: Populate `vars_used_later` during statement iteration
+- `expr_gen.rs`: Insert `.clone()` at call site when variable is reused
+
+#### DEPYLER-1169: List Index Assignment
+**Impact**: Fixes infinite loop/hang in bubble sort implementations
+**Root Cause**: `list[i] = x` was generating `vec.insert(i, x)` instead of `vec[i] = x`
+
+**Python semantics**: `list[i] = x` replaces element at index i
+**Wrong Rust**: `vec.insert(i, x)` inserts NEW element, shifts others (O(n))
+**Correct Rust**: `vec[i] = x` replaces element at index i (O(1))
+
+**File Changed**: `stmt_gen.rs` line 4831
+
+### 📊 Metrics
+
+- **Compile Rate**: 40.6% (130/320 files)
+- **Hero Example Runtime**: < 10 seconds
+- **Top Remaining Blocker**: E0308 type mismatches (334 errors)
+
 ## [Unreleased]
 
 ### 🔧 Code Organization & Refactoring (2025-01-06)

Cargo.toml

@@ -36,7 +36,7 @@ max_cyclomatic_complexity = 15
 required_documentation_coverage = 100.0
 
 [workspace.package]
-version = "3.21.0"
+version = "3.22.0"
 edition = "2021"
 authors = ["Depyler Contributors"]
 license = "MIT OR Apache-2.0"

crates/depyler-ruchy/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "depyler-ruchy"
-version = "3.21.0"
+version = "3.22.0"
 edition = "2021"
 authors = ["Depyler Contributors"]
 description = "Ruchy script format backend for Depyler Python-to-Rust transpiler"

crates/depyler/Cargo.toml

@@ -31,7 +31,7 @@ depyler-verify = { version = "3.19.18", path = "../depyler-verify" }
 depyler-mcp = { version = "3.19.18", path = "../depyler-mcp" }
 depyler-annotations = { version = "3.19.18", path = "../depyler-annotations" }
 depyler-quality = { version = "3.19.18", path = "../depyler-quality" }
-depyler-oracle = { version = "3.21.0", path = "../depyler-oracle" }
+depyler-oracle = { version = "3.22.0", path = "../depyler-oracle" }
 entrenar = "0.4.0"
 alimentar = { version = "0.2.2", default-features = false, features = ["local"] }
 arrow = { version = "54", default-features = false, features = ["json"] }