Note: For future releases, drush.phar will only be attached to a Github release. One will no longer be able to access it at http://files.drush.org/drush.phar. Install docs have been updated accordingly.
See last link for the details about the following highlights:
- Fix #2753: Prevent loops when unable to download extensions (#2797)
- Fix #2817. bash autocomplete via .bashrc only works on the second .bashrc inclusion.
- Disable the psysh version check.
- Fix #2831: create_function is deprecated in php 7.2;
- Fix drush docs, link to 8.x docs from within the 8.x documentation
- Respect disable_functions list in use_pcntl_exec check (#2857)
- fix namespace for Drush command sql-query with option "--db-prefix"
- Code changes since 8.1.12.