v1.6.4: bump version (freemkv-unlock git-pinned for the tag)

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## [1.6.4] — UNRELEASED
+## [1.6.4] — 2026-08-15
 
 ### Fixed
 

Cargo.toml

@@ -26,7 +26,7 @@ aes = "0.9"
 # Interim path dep for local cross-repo dev; the release script re-pins this to
 # `{ git = ".../freemkv-unlock", tag = "vX.Y.Z" }` before tagging libfreemkv (so
 # the released tag resolves freemkv-unlock from git, not a sibling path).
-freemkv-unlock = { path = "../freemkv-unlock" }
+freemkv-unlock = { git = "https://github.com/freemkv/freemkv-unlock", tag = "v1.6.4" }
 rand = "0.10"
 zip = { version = "8", default-features = false, features = ["deflate"] }
 base64 = "0.23"