diff --git a/readme.md b/readme.md
index eb20fdf..f9cd2b6 100644
--- a/readme.md
+++ b/readme.md
@@ -27,7 +27,8 @@ The whole stack is Rust: one language, one toolchain, one test runner,
 from database to browser. Motivation for choosing Rust is maintainability,
 not speed or efficiency.
 
-- Rust: stable channel, edition 2024. Minimum supported version: 1.8x (TBD).
+- Rust: stable channel, edition 2024. Minimum supported version: 1.85
+  (the first release with edition 2024).
   Crate versions are decided at `cargo add` time and pinned in Cargo.lock;
   this document records choices, not versions.
 - Async runtime: tokio.