This update for postgresql96 fixes the following issues: Security issues fixed: - CVE-2017-15098: Fix crash due to rowtype mismatch in json{b}_populate_recordset . - CVE-2017-15099: Ensure that INSERT ... ON CONFLICT DO UPDATE checks table permissions and RLS policies in all cases . Bug fixes: - Update to version 9.6.6: * https://www.postgresql.org/docs/9.6/static/release-9-6-6.html * https://www.postgresql.org/docs/9.6/static/release-9-6-5.html