For running Nominatim:
- * [PostgreSQL](https://www.postgresql.org) (9.3+)
+ * [PostgreSQL](https://www.postgresql.org) (9.3+ will work, 11+ strongly recommended)
* [PostGIS](https://postgis.net) (2.2+)
* [Python 3](https://www.python.org/) (3.5+)
* [Psycopg2](https://www.psycopg.org) (2.7+)