**Upgrades:** * Django 2.1.5 * Chrome tester => v. 72
3.5.9
**Fixes:** * Upgrade bleach to 2.1.4 * Upgrade travis settings to run on xenial (travis no longer works)
3.5.8
**Fixes:** * Prevent images from being lost when upgrading a document from previous fidus writer version * remove empty text nodes from comments and documents * fix link to maintenance page in warning message
3.5.7
**Fixes:** * Better response to document deletion when document is part of a book * Make the email confirm page work on slightly older browsers