Update to say 1.78 release

Author: ChrisDenton

posts/2024-02-15-Windows-7.md

@@ -4,7 +4,7 @@ title: "Updated baseline standards for Windows targets"
 author: Chris Denton on behalf of the Compiler Team
 ---
 
-The minimum requirements for Tier 1 toolchains targeting Windows will increase with the 1.77 release (scheduled for March 21, 2024).
+The minimum requirements for Tier 1 toolchains targeting Windows will increase with the 1.78 release (scheduled for May 02, 2024).
 Windows 10 will now be the minimum supported version for the `*-pc-windows-*` targets.
 These requirements apply both to the Rust toolchain itself and to binaries produced by Rust.