wikimedia/composer-merge-plugin

• Add source reference information for merged packages (#101)
• Hook PluginEvents::INIT if Composer version supports it (PR #117)
• Fix improper handling of dev mode dependencies (#113)
• Always prepend added repositories (#95)
• Register callbacks with high priority (#131)
• Add new merge-scrips configuration flag (#135, #126, #68)

Bugs fixed:

• PR #102: Resolve self.version contraints using data from root package

Bugs fixed:

• Issue #50: Honor composer.lock on initial plugin install
• Issue #62: Require section not merged when using branch alias
• Issue #64: Compute proper autoload paths for included files in the root project directory
• Issue #71: Fix stability flag extraction
• Issue #88: self.version constraints expand to the root package version

New features:

• Issue #37: Add support for required files
• Issue #45: support for 'last defined package wins' conflict resolution (@far-blue)
• PR #47: autoload-dev support (@thewilkybarkid)
• Issue #49: Optional support for merging extras (@far-blue)
• Issue #35, #51: Merge contents from the conflict, replace, and provides sections of included packages.
• Issue #66: Only log duplicate files in VeryVerbose mode (-vv)
• Issue #83: Update to take advantage of RootAliasPackage changes
• Issue #85: Option to not merge require-dev sections

• Fix optimized autoloader creation on initial install (#41)

• Mark as compatible with composer-plugin-api >=1.0, <2.0
• Hook post-install/post-update so the plugin can take effect on initial install (#34)
• Fix crash when root package includes a branch-alias (#26)

• Merge in the autoload sections of merged packages
• Send debug message to STDERR
• Change from using Composer\Script\CommandEvent to Composer\Script\Event
• Various code style and cleanliness fixes