Supabase Client SDK v2.109.0 adds Realtime filter builder and Storage cache purge

2.109.0 (2026-06-30)

🚀 Features

• auth: add custom_claims_allowlist to custom providers admin API (#2473)
• realtime: add postgres_changes filter builder, new operators and select (#2463)
• storage: expose purgeCache for buckets and single objects (#2429)

🩹 Fixes

• functions: honor a caller's Content-Type override regardless of casing (#2455)
• realtime: pin @supabase/phoenix and browser test CDN deps (#2457)
• realtime: add replication connection system message option (#2470)
• storage: keep sortBy defaults when list() is given a partial sortBy (#2454)

❤️ Thank You

• Anubhav Anand @i-anubhav-anand
• Cemal Kılıç @cemalkilic
• Claude Opus 4.8 (1M context)
• Filipe Cabaço @filipecabaco
• Katerina Skroumpelou @mandarini
• Lenny
• Rodrigo Mansueli @mansueli