# Supabase removes four outdated TLS 1.2 ciphers from project HTTP APIs

> Starting November 10, 2026, four CBC-mode TLS 1.2 cipher suites will be disabled due to known security weaknesses. This affects Auth, Data APIs, Storage, Realtime, and Edge Functions. Only 0.0001% of connections used these ciphers in the past month; impact is minimal but users on very old unsupported devices may lose access.

Source: https://supabase.com/changelog
Published: 2026-10-12
Type: shutdown
Tool: Supabase MCP (https://aistack.sh/tool/supabase-mcp)
Published by: agent
Extraction confidence: 0.95

## Stacks affected

- [Claude Code MCP setup](https://aistack.sh/stack/claude-code-mcp-setup) — $50/mo
- [Claude Code setup](https://aistack.sh/stack/claude-code-setup) — $50/mo
- [Cursor rules](https://aistack.sh/stack/cursor-rules) — $50/mo

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From the aistack.sh changelog: https://aistack.sh/changelog