- If a packages exists in a higher priority repository, it will now be entirely ignored in lower priority repositories. See [repository priorities](https://getcomposer.org/repoprio) for details.
- Invalid PSR-0 / PSR-4 class configurations will not autoload anymore in optimized-autoloader mode, as per the warnings introduced in 1.10
- Package names now must comply to our naming guidelines or Composer will abort, as per the warnings introduced in 1.8.1
- Removed --no-suggest flag as it is not needed anymore
- Deprecated --no-suggest flag as it is not needed anymore
- `update` now lists changes to the lock file first, and then the changes applied when installing the lock file to the vendor dir
- `HTTPS_PROXY_REQUEST_FULLURI` if not specified will now default to false as this seems to work better in most environments
Jordi Boggiano
4 years ago