-- pg_turbovec upgrade 2.15.2 -> 2.16.0 -- Run automatically by `ALTER EXTENSION pg_turbovec UPDATE TO '2.16.0';`. -- -- No new or changed SQL objects. v2.16.0 switches the IVF coarse-centroid -- trainer to e-means (default) and adds two session GUCs -- (turbovec.ivf_use_emeans, turbovec.ivf_emeans_epochs), both registered by -- the library at load time rather than by SQL. No wire change (stays v8), -- scoring bit-identical, no forced REINDEX (REINDEX an IVF index to adopt the -- new trainer; optional). Intentionally empty apart from this comment.