diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ad178f..e9eb94c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,53 @@ All notable changes to dagx will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.0] - 2025-10-08
+
+[View changes](https://github.com/swaits/dagx/compare/v0.1.0...v0.2.0)
+
+### Changed
+
+- **BREAKING**: Updated MSRV (Minimum Supported Rust Version) from 1.78.0 to 1.81.0
+  - Required by updated dependencies: `criterion@0.7.0`, `half@2.6.0`, `rayon@1.11.0`
+  - Updated in both `dagx` and `dagx-macros` crates
+  - Updated all documentation (README.md, CONTRIBUTING.md)
+
+### Added
+
+- Comprehensive test coverage improvements (82.61% → 92.94%)
+  - Added 9 new unit tests for error paths in `ExtractInput` implementations
+  - Added 3 new type conversion tests in `src/types/tests.rs`
+  - Added 1 new trait implementation test in `src/task/tests.rs`
+  - Added 1 new dependency tuple test in `src/deps/tests.rs`
+  - Added 6 new execution path tests in `tests/execution/basic.rs`
+  - Added error handling tests for HashMap, Result, Option, Vec, and Arc types
+  - Added tests for tuple dependency count validation
+  - Improved concurrent run protection test with better synchronization
+- Added `tarpaulin_include` to lint configuration for coverage tooling compatibility
+
+### Fixed
+
+- Fixed GitHub Actions `cargo-audit` workflow
+  - Replaced deprecated `actions-rs/audit-check@v1` with direct `cargo audit` command
+  - Resolved "Resource not accessible by integration" error
+- Fixed clippy warnings in test code
+  - Removed unnecessary borrows in `.depends_on()` calls
+  - Added `#[allow(clippy::clone_on_copy)]` for explicit clone test
+- Marked timing-sensitive and resource-intensive tests with `#[cfg_attr(tarpaulin, ignore)]`
+  - `test_arc_parallel_execution` (timing unreliable under instrumentation)
+  - `test_100000_nodes_stress` (resource intensive)
+  - `test_10000_level_chain_stress` (resource intensive)
+
+### Internal
+
+- Improved test organization following existing patterns in `tests/` directory
+- Enhanced error path coverage for all `ExtractInput` trait implementations
+- Better separation between unit tests and integration tests
+- Refactored `scripts/release_check.sh` to use configurable VERSION variable
+  - Replaced hardcoded version references throughout script
+  - Updated instructions to use `jj` commands instead of `git`
+  - Simplified version bumps for future releases
+
 ## [0.1.0] - 2025-10-05
 
 ### Added
@@ -97,4 +144,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - macOS (compatible)
 - Windows (compatible)
 
-[0.1.0]: https://github.com/swaits/dagx/releases/tag/v0.1.0
+[0.2.0]: https://github.com/swaits/dagx/tree/v0.2.0
+[0.1.0]: https://github.com/swaits/dagx/tree/v0.1.0
diff --git a/Cargo.lock b/Cargo.lock
index 17ee3ae..b797b15 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -434,7 +434,7 @@ dependencies = [
 
 [[package]]
 name = "dagx"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "async-executor",
  "async-std",
@@ -452,7 +452,7 @@ dependencies = [
 
 [[package]]
 name = "dagx-macros"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index ea3360a..0509892 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ members = ["dagx-macros"]
 
 [package]
 name = "dagx"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 rust-version = "1.81"
 authors = ["Stephen Waits <steve@waits.net>"]
@@ -23,7 +23,7 @@ unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin)', 'cfg(tarpauli
 [dependencies]
 futures = "0.3"
 parking_lot = "0.12"
-dagx-macros = { version = "0.1.0", path = "./dagx-macros" }
+dagx-macros = { version = "0.2.0", path = "./dagx-macros" }
 
 [dev-dependencies]
 tokio = { version = "1", features = ["macros", "rt-multi-thread", "time", "sync"] }
diff --git a/dagx-macros/Cargo.toml b/dagx-macros/Cargo.toml
index fcbb746..344fdfe 100644
--- a/dagx-macros/Cargo.toml
+++ b/dagx-macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dagx-macros"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 rust-version = "1.81"
 authors = ["Stephen Waits <steve@waits.net>"]
diff --git a/scripts/release_check.sh b/scripts/release_check.sh
index 0fedb8a..a99d30b 100755
--- a/scripts/release_check.sh
+++ b/scripts/release_check.sh
@@ -1,12 +1,17 @@
 #!/bin/bash
-# Release Readiness Checker for dagx v0.1.0
+# Release Readiness Checker for dagx
 # This script performs EXHAUSTIVE checks before publishing to crates.io
 
 set -e
 
-echo "========================================"
-echo "dagx v0.1.0 EXHAUSTIVE Release Check"
-echo "========================================"
+# =============================================================================
+# CONFIGURATION
+# =============================================================================
+VERSION="0.2.0"
+
+echo "=================="
+echo "dagx Release Check"
+echo "=================="
 echo ""
 
 # Color codes
@@ -51,7 +56,7 @@ check_pass "Rust version compatible"
 
 echo ""
 echo "→ Checking for uncommitted changes..."
-if ! git diff --quiet || ! git diff --cached --quiet; then
+if jj status 2>&1 | grep -q "Working copy changes:"; then
   check_warn "Uncommitted changes found - you'll need to commit before publishing"
 else
   check_pass "No uncommitted changes"
@@ -136,8 +141,8 @@ check_pass "README.md looks perfect"
 echo ""
 echo "→ Verifying CHANGELOG.md..."
 [ -f CHANGELOG.md ] || check_fail "CHANGELOG.md missing"
-grep -q "0.1.0" CHANGELOG.md || check_fail "CHANGELOG.md doesn't mention v0.1.0"
-check_pass "CHANGELOG.md exists and mentions v0.1.0"
+grep -q "$VERSION" CHANGELOG.md || check_fail "CHANGELOG.md doesn't mention v$VERSION"
+check_pass "CHANGELOG.md exists and mentions v$VERSION"
 
 echo ""
 echo "→ Verifying LICENSE..."
@@ -182,7 +187,7 @@ section "CARGO.TOML METADATA"
 
 echo "→ Checking dagx Cargo.toml..."
 grep -q 'name = "dagx"' Cargo.toml || check_fail "Package name incorrect"
-grep -q 'version = "0.1.0"' Cargo.toml || check_fail "Version not 0.1.0"
+grep -q "version = \"$VERSION\"" Cargo.toml || check_fail "Version not $VERSION"
 grep -q 'edition = "2021"' Cargo.toml || check_fail "Edition not 2021"
 grep -q 'license = "MIT"' Cargo.toml || check_fail "License not MIT"
 grep -q 'description = "A minimal, type-safe' Cargo.toml || check_fail "Description missing"
@@ -197,7 +202,7 @@ check_pass "dagx Cargo.toml metadata complete and correct"
 echo ""
 echo "→ Checking dagx-macros Cargo.toml..."
 grep -q 'name = "dagx-macros"' dagx-macros/Cargo.toml || check_fail "dagx-macros name incorrect"
-grep -q 'version = "0.1.0"' dagx-macros/Cargo.toml || check_fail "dagx-macros version not 0.1.0"
+grep -q "version = \"$VERSION\"" dagx-macros/Cargo.toml || check_fail "dagx-macros version not $VERSION"
 grep -q 'edition = "2021"' dagx-macros/Cargo.toml || check_fail "dagx-macros edition not 2021"
 grep -q 'license = "MIT"' dagx-macros/Cargo.toml || check_fail "dagx-macros license not MIT"
 grep -q 'description = "Procedural macros for dagx"' dagx-macros/Cargo.toml || check_fail "dagx-macros description missing"
@@ -230,8 +235,8 @@ check_pass "dagx-macros is ready to publish"
 echo ""
 echo "→ Testing dagx package (dry-run with --allow-dirty)..."
 echo "  Note: This will fail until dagx-macros is published to crates.io"
-if cargo publish --dry-run --allow-dirty 2>&1 | grep -q "no matching package named \`dagx-macros\`"; then
-  check_warn "dagx package check shows dependency on unpublished dagx-macros (expected)"
+if cargo publish --dry-run --allow-dirty 2>&1 | grep -q "failed to select a version for the requirement.*dagx-macros"; then
+  check_warn "dagx package check shows dependency on unpublished dagx-macros v$VERSION (expected)"
 else
   cargo publish --dry-run --allow-dirty || check_fail "dagx package check failed unexpectedly"
   check_pass "dagx package is ready (dagx-macros must be published first)"
@@ -284,16 +289,15 @@ echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━
 echo -e "${GREEN}✓ ALL CHECKS PASSED!${NC}"
 echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
 echo ""
-echo "dagx v0.1.0 is READY FOR RELEASE!"
+echo "dagx v$VERSION is READY FOR RELEASE!"
 echo ""
 echo -e "${YELLOW}PUBLICATION INSTRUCTIONS:${NC}"
 echo ""
 echo "1. Commit any uncommitted changes:"
-echo "   git add ."
-echo "   git commit -m 'Release v0.1.0'"
+echo "   jj commit -m 'chore: release v$VERSION'"
 echo ""
-echo "2. Tag the release:"
-echo "   git tag -a v0.1.0 -m 'Release v0.1.0'"
+echo "2. Create a bookmark for the release:"
+echo "   jj bookmark create v$VERSION"
 echo ""
 echo "3. Publish dagx-macros FIRST:"
 echo "   cd dagx-macros"
@@ -303,9 +307,8 @@ echo "4. Then publish dagx:"
 echo "   cd .."
 echo "   cargo publish"
 echo ""
-echo "5. Push changes and tag:"
-echo "   git push origin main"
-echo "   git push origin v0.1.0"
+echo "5. Push changes and bookmark:"
+echo "   jj git push"
 echo ""
 echo -e "${BLUE}Note: dagx-macros MUST be published before dagx${NC}"
 echo -e "${BLUE}because dagx depends on dagx-macros from crates.io${NC}"