Amazon Aurora 的 MySQL-Compatible Edition 開始支援相容 MySQL 5.7 的服務：「Announcing Preview of Amazon Aurora with MySQL 5.7 Compatibility」。
Amazon Aurora with MySQL 5.7 compatibility offers enhancements such as JSON support, spatial indexes, generated columns and performance improvement of 5x over MySQL 5.7, and up to 10x for spatial datasets.
雖然目前還在 Preview (需要申請才能用)，而且開放區域有限，但總算是有消息了：
The preview is currently available in US East (N. Virginia), US East (Ohio), US West (Oregon), and Canada (Montreal).
會一定要 5.7 的，主要的需求應該是在 spatial index 上吧... JSON 反倒還好。