Prepare 1.9.1 changelog

CHANGELOG.md

@@ -1,3 +1,15 @@
+### [1.9.1] 2019-11-01
+
+  * Fixed various credential handling issues with gitlab and github
+  * Fixed credentials being present in git remotes in Composer cache and vendor directory when not using SSH keys
+  * Fixed `composer why` not listing replacers as a reason something is present
+  * Fixed various PHP 7.4 compatibility issues
+  * Fixed root warnings always present in Docker containers, setting COMPOSER_ALLOW_SUPERUSER is not necessary anymore
+  * Fixed GitHub access tokens leaking into debug-verbosity output
+  * Fixed several edge case issues detecting GitHub, Bitbucket and GitLab repository types
+  * Fixed Composer asking if you want to use a composer.json in a parent directory when ran in non-interactive mode
+  * Fixed classmap autoloading issue finding classes located within a few non-PHP context blocks (?>...<?php)
+
 ### [1.9.0] 2019-08-02
 
   * Breaking: artifact repositories with URLs containing port numbers and requiring authentication now require you to configure http-basic auth for the `host:port` pair explicitly
@@ -764,6 +776,7 @@
 
   * Initial release
 
+[1.9.1]: https://github.com/composer/composer/compare/1.9.0...1.9.1
 [1.9.0]: https://github.com/composer/composer/compare/1.8.6...1.9.0
 [1.8.6]: https://github.com/composer/composer/compare/1.8.5...1.8.6
 [1.8.5]: https://github.com/composer/composer/compare/1.8.4...1.8.5