New Features

• [CSS] - Increased CSS import support and new hooks included for CSS module creation by @alexander-akait in #17057
• Logging now added to DefinePlugin by @alexander-akait in #17048
• New ignoreBrowserWarnings option to ignore browser console warnings in ModuleFederation by @indeediansbrett in #16388

Bug Fixes

• [CSS] - Fix issue where vendor prefixed keyframes and animation was not supported in CSS modules by @alexander-akait in #16975
• Fix bug where AST was not properly handled by @quanru in #17032
• Fix automatic publicPath detection logic by @alexander-akait in #17047

Tests & Contributor Experience

• Rename provide to getOrInsert in MapHelpers and document it better by @TheLarkInn in #17060
• Increase test reliability for DefinePlugin @alexander-akait in #17062
• Add additional CI Pipeline to test main branches of first-party webpack dependencies by @alexander-akait in #17020
• Refactor tests to no longer use deprecated or legacy dependencies and APIs by @alexander-akait in #17033

Developer Experience

• Increase type coverage/documentation for ModuleFilenameHelpers by @TheLarkInn in #17045
• Increase type coverage/documentation for CommonJsExportsParserPlugin by @TheLarkInn in #17046
• Increase type coverage/documentation for binarySearchBounds.js by @TheLarkInn in #17058
• Export MemoryCacheOptions types by @romulof in #17055

Dependencies & Maintenance

• Add NodeJS v20 to CI Matrix by @alexander-akait in #17019
• Update Typescript to v5 by @alexander-akait in #16957
• Bump @types/estree from 1.0.0 to 1.0.1 by @dependabot in #17026
• Bump @types/node from 18.15.11 to 18.15.13 by @dependabot in #17038
• Bump assemblyscript from 0.27.2 to 0.27.3 by @dependabot in #17051
• Bump memfs from 3.5.0 to 3.5.1 by @dependabot in #17039
• Bump prettier from 2.8.7 to 2.8.8 by @dependabot in #17050
• Bump simple-git from 3.17.0 to 3.18.0 by @dependabot in #17066

New Contributors

• @quanru made their first contribution in #17032
• @romulof made their first contribution in #17055
• @indeediansbrett made their first contribution in #16388

Full Changelog: v5.80.0...v5.81.0