v2.1

Enhancements

• Add HTTP basic authentication in USER MAPPING: This feature defines a mapping of a PostgreSQL user to an user in the target Nominatim server - user and password, so that the user can be authenticated.

Bug fixes

• Fixed invalid libcurl lifecycle: Initialize libcurl's global state once per backend via _PG_init() (curl_global_init). Previously the wrapper relied on the implicit initialization performed by curl_easy_init(), which libcurl documents as not thread-safe and unsafe when the address space is shared with other libcurl-using extensions (e.g. rdf_fdw).