• packages/bundler-shared/package.json#L132-L133

🏁 Script executed:

#!/bin/bash
# Verify @rspack/core version 1.6.8 existence

# Check if version 1.6.8 exists
echo "=== Checking if @rspack/core@1.6.8 exists ==="
npm view @rspack/core@1.6.8 version 2>&1

# Get available versions between 1.4.8 and 1.6.8
echo -e "\n=== Available versions between 1.4.8 and 1.6.8 ==="
npm view @rspack/core versions --json 2>&1 | jq -r '.[]' | grep -E '^1\.(4|5|6)' | sort -V

Repository: kmijs/kmi

Length of output: 553

🌐 Web query:

@rspack/core 1.6.8 changelog release notes

💡 Result:

@rspack/core v1.6.8 — published Dec 17, 2025. See the release listing and Rspack release activity for details. (releasealert.dev)

Citations:

• 1: https://releasealert.dev/npmjs/%40rspack/core?utm_source=openai

🌐 Web query:

@rspack/core breaking changes migration 1.4 to 1.6

💡 Result:

Here are the main breaking changes and migration actions when moving @rspack/core from 1.4 → 1.6 (concise checklist):

• CSS builtins removed — replace builtins.css with the new CSS options (module.parser / module.generator) and switch any usages of builtins CSS plugins to the new plugins (e.g., use rspack.LightningCssMinimizerRspackPlugin). Update CSS-related config accordingly. (rspack.rs)

• New tree-shaking algorithm / ESM output changes — 1.6 improves/enables a new tree-shaking behavior and ESM output handling; verify dynamic-import patterns and expect different tree-shake results (may need to adjust imports or sideEffects). Test bundles and adjust code that relied on prior dead-code retention. (rspack.rs)

• Remove compiler.build and compiler.rebuild — code calling these internal APIs must be updated (use the supported public APIs / runner patterns instead). (rspack.rs)

• experiments.* option removals / defaults changed — some experiments flags were removed or defaulted (e.g., disableApplyEntryLazily removed; new resolver enabled by default earlier). Audit your experiments.* usage and remove or adapt configs that targeted removed flags. (rspack.rs)

• SWC plugin / SWC core version bumps — if you use SWC Wasm plugins (e.g., @swc/plugin-emotion), upgrade them to versions compatible with the newer swc_core used by Rspack 1.4→1.6 to avoid build errors. Also check minimizer option shape changes (e.g., passes → compress.passes). (rspack.rs)

• Lazy compilation middleware change (from 1.4) — middleware now reads lazyCompilation from the compiler; remove manual passing of that option if you followed earlier examples. Confirm any custom dev-server middleware is updated. (rspack.rs)

• General plugin API / builtin adjustments — some builtins were removed or renamed; search your config for usages of removed builtins (SwcCssMinimizerRspackPlugin → LightningCssMinimizerRspackPlugin, builtins.* options) and replace accordingly. (rspack.rs)

Quick migration steps

1. Run tests and a full build locally and in CI; capture failures.
2. Search your config for: builtins., experiments., compiler.build/rebuild, old minimizer/plugin names, SWC plugin imports, and resolve.extensions; update per notes above. (rspack.rs)
3. Upgrade SWC-related plugins to versions compatible with swc_core used by 1.6. (rspack.rs)
4. Inspect bundle output (tree-shaken modules, ESM artifacts) and adjust code that relied on previous bundling behaviors. (rspack.rs)

If you want, tell me where your current config or code calls the removed APIs (paste snippets) and I’ll provide exact replacements.

Citations:

• 1: https://rspack.rs/blog/announcing-0-6?utm_source=openai
• 2: https://rspack.rs/blog/announcing-1-6?utm_source=openai
• 3: https://rspack.rs/blog/announcing-0-6?utm_source=openai
• 4: https://rspack.rs/blog/announcing-0-6?utm_source=openai
• 5: https://rspack.rs/blog/announcing-1-4?utm_source=openai
• 6: https://rspack.rs/blog/announcing-1-4?utm_source=openai
• 7: https://rspack.rs/guide/migration/rspack_0.x?utm_source=openai
• 8: https://rspack.rs/blog/announcing-0-6?utm_source=openai
• 9: https://rspack.rs/blog/announcing-1-4?utm_source=openai
• 10: https://rspack.rs/blog/announcing-1-6?utm_source=openai

🏁 Script executed:

#!/bin/bash
# Search for breaking change patterns in the codebase

# Search for CSS builtins usage
echo "=== Searching for CSS builtins usage ==="
rg "builtins\.css|builtins\." --type js --type json --type ts 2>/dev/null | head -20

# Search for compiler.build/rebuild usage
echo -e "\n=== Searching for compiler.build/rebuild usage ==="
rg "compiler\.(build|rebuild)" --type js --type ts 2>/dev/null | head -20

# Search for experiments config
echo -e "\n=== Searching for experiments config ==="
rg "experiments\s*:" --type json --type js 2>/dev/null | head -20

# Search for rspack config files
echo -e "\n=== Searching for rspack config files ==="
find . -name "rspack*.config.*" -o -name "webpack.config.*" 2>/dev/null | grep -v node_modules | head -20

# Check the actual bundler-shared package.json content
echo -e "\n=== Current @rspack/core dependency in bundler-shared ==="
cat packages/bundler-shared/package.json | grep -A 2 -B 2 "@rspack/core"

Repository: kmijs/kmi

Length of output: 50367

🏁 Script executed:

#!/bin/bash
# More targeted search for rspack config and breaking change patterns

# Find rspack config files
echo "=== Finding rspack config files ==="
find . -type f -name "*rspack*.config.*" 2>/dev/null | head -20

# Check bundler-shared package.json dependencies
echo -e "\n=== Dependencies in bundler-shared/package.json (lines 130-140) ==="
sed -n '130,140p' packages/bundler-shared/package.json

# Search for any SWC minimizer configuration patterns
echo -e "\n=== Searching for minimizer/SWC config ==="
rg "SwcCssMinimizerRspackPlugin|LightningCssMinimizerRspackPlugin|minimizer" --type json --type js 2>/dev/null | grep -v node_modules | head -20

# Search for any experiments config in source files
echo -e "\n=== Checking for experiments config in bundler files ==="
find packages/bundler-shared -type f \( -name "*.js" -o -name "*.ts" -o -name "*.json" \) -exec grep -l "experiments" {} \; 2>/dev/null

Repository: kmijs/kmi

Length of output: 50365