# Upgrade notes ## 0.4.x ### Project files TileMill now keeps its files by default in your user's home directory at `~/Documents/MapBox`. After starting TileMill for the first time this directory will be created. Move your projects from their old location to `~/Documents/MapBox/project`. ### Relative paths If you bravely used relative paths to reference markers and other images in your old Carto stylesheets you need to update the paths to be relative to your project's directory. For example the following rule which worked in TileMill 0.3.x by virtue of being relative to the Mapnik XML file written into the hidden `.cache` directory polygon-pattern-file: url(../project/new-world/res/land.png); Should be changed to be relative to the project directory polygon-pattern-file: url(res/land.png); ### Minimal mode A setting for entering and leaving minimal mode no longer exists. Projects will automatically update if you decide to edit their `mml` and `mss` files directly with another text editor. Beware that altering projects in both the TileMill UI and your editor is not recommended - TileMill will always give preference to an external editor if changes are made.