8.1.15

See last link for the details about the following highlights:

• Backport to 8.x #2604 Allow delete of single value in a config object
• Drush 8 dependencies loosened such that it now co-exist with Drupal 8.4 in the same composer project
• Changes since 8.1.14.

9.0.0-beta6

See last link for the details about the following highlights:

• A few drush generate fixes.
• 529829b - Add back editing of aliases and config files in core-edit
• 7ba7dbe - Added config:status command.
• d75d860 - Update examples.drush.yml.
• 1227944 - Update aliases example file and fix up alias usage (#3010)
• Changes since 9.0.0-beta5.

9.0.0-beta5

See last link for the details about the following highlights:

• Lots and lots of internal changes.
• Refactored dispatch to be based on Symfony Console.
• Legacy commandfiles no longer load. See this blog post.
• Commandfiles and site alias files are not discovered in global locations by default. To use them, add a Drush config file (drush.yml) or use --include/--alias-path at the CLI. Drush config files are discovered in global locations.
• Changes since 9.0.0-beta4.

8.1.14

See last link for the details about the following highlights:

• Minor bug fixes
• Changes since 8.1.13.

9.0.0-beta4

See last link for the details about the following highlights:

• Sanitize users.init column
• Removed --sanitize from sql-sync. Instead, run sql-sanitize command after running sql-sync.
• Improve messages for deprecated commands (e.g. make, dl, etc.)
• Fix options being dropped during redispatch (e.g. sql-sync)
• Changes since 9.0.0-beta3.

8.1.13

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.

9.0.0-beta3

See last link for the details about the following highlights:

• Improve #1371 - warn if mysql/psql/sqlite3 client not present.
• Finish user-cancel command
• Disable the psysh version check
• Fix #2824. Fix exit codes for sql commands.
• Pickup key Exception handling fix from consolidation/annotated-command.
• Changes since 9.0.0-beta2.

9.0.0-beta2

See last link for the details about the following highlights:

• Added new generate command. based on the focused DCG project, which ships with 50ish generators for scaffolding all the things in Drupal.
• Improve table wrapping
• Remove Finder+Launcher. Relying now on a site local Drush (see install docs)
• All classes now follow PSR2 code style standard.
• Formalize the API for Contrib to offer Drush commands and generators. See devel and devel_generate modules for an example.
• Changes since 9.0.0-beta1.

8.1.12

See last link for the details about the following highlights:

• Fix image style generation for d7
• Adopt new form elements for update notifications during site installation.
• Documented local paths for patches in makefile (#2769)
• Fix #2756 #2723 drush init causes .bashrc syntax to break
• Workaround segmentation fault when clearing caches. (#2765)
• Changes since 8.1.11.

9.0.0-beta1

Lots better.