• Adding Cython support to greatly speed up normal Box operations on supported systems
• Adding #161 support for access box dots with get and checking with in (thanks to scott-createplay)
• Adding #183 support for all allowed character sets (thanks to Giulio Malventi)
• Adding #196 support for sliceable boxes (thanks to Dias)
• Adding #164 default_box_create_on_get toggle to disable setting box variable on get request (thanks to ipcoder)
• Changing #208 repr to produce eval-able text (thanks to Jeff Robbins)
• Changing #215 support ruamel.yaml new syntax (thanks to Ivan Pepelnjak)
• Changing update and merge_update to not use a keyword that could cause issues in rare circumstances
• Changing internal _safe_key logic to be twice as fast
• Removing support for ruamel.yaml < 0.17