1.0.1

• deepMerge: Explicit default merge strategies; consistent behavior when options are omitted.
• simpleMerge: Map and Set are no longer treated as plain objects; they are replaced by the source value.
• Docs: Fixed JSDoc formatting for merge strategy options.
• Code: Use array destructuring instead of sources.shift() for recursion.
• Tests: Coverage for date strategies (keepEarlier/keepLater), custom merge functions, and circular references.

1.0.0

@cross/deepmerge v1.0.0

Key Features

• Cross-Runtime Compatibility:
• Deep Merging: Recursively combines objects at all levels of nesting.
• Array Merging Customization: Choose among strategies:
  • combine (default): Concatenates arrays, preserves duplicates.
  • unique: Produces an array of unique elements.
  • replace: Overwrites the target array with the source array.
• Set Merging Customization: Select between strategies:
  • combine (default): Adds new set elements.
  • replace: Overwrites the target set with the source set.
• Map Merging Customization: Select between strategies:
  • combine (default): Adds new entries, replaces entries with the same key.
  • replace: Overwrites the target map with the source map.
• Date Merging Customization: Select between strategies:
  • replace (default): Overwrites the target Date with the source Date.
  • keepEarlier: Keeps the earlier Date.
  • keepLater: Keeps the later Date.
• Supply custom merging functions: Allows specifying custom merge functions for handling specific types or
  structures during the merge process.

For documentation and usage see deepmerge on JSR.io

Full Changelog: https://github.com/cross-org/deepmerge/commits/1.0.0