# Download and launch
# Configuration Options
Options are added at launch. Either through command line options or through environment variables.
This is an example using the command line options.
$ ./meilisearch --db-path ./meilifiles --http-addr '127.0.0.1:7700' Server is listening on: http://127.0.0.1:7700
Here is the list of all the options and how to use them.
# Updating MeiliSearch
Updating MeiliSearch is a straightforward process, simply get and install the latest binary with your preferred method (see installation above).
Note that all MeiliSearch versions are not compatible with each other, and you may need to re-index your documents. If you get the error
Cannot open database, expected MeiliSearch engine version: X.X.X, current engine version Y.Y.Y, delete your database folder (defaults to
data.ms), and re-index all your documents.