grunt-hash

grunt-hash is a Grunt plugin that appends a unique hash (MD5 or custom) to filenames for cache busting. It generates mapping files for server-side asset lookup. Stable version 0.5.0, last released in 2013. Requires Grunt 0.4.x. Differentiators: simple configuration, supports custom hash functions, and outputs mapping JSON. No longer actively maintained; consider alternatives like gulp-rev or webpack.