[next-0.10] small updates to mention Garage v0.9.4

doc/book/reference-manual/configuration.md

@@ -300,7 +300,7 @@ Since `v0.8.0`, Garage can use alternative storage backends as follows:
 | [Sled](https://sled.rs) (old default, removed since `v1.0`) | `"sled"` | `<metadata_dir>/db/` |
 
 Sled was supported until Garage v0.9.x, and was removed in Garage v1.0.
-You can still use an older binary of Garage (e.g. v0.9.3) to migrate
+You can still use an older binary of Garage (e.g. v0.9.4) to migrate
 old Sled metadata databases to another engine.
 
 Performance characteristics of the different DB engines are as follows:

src/db/open.rs

@@ -36,7 +36,7 @@ impl std::str::FromStr for Engine {
 		match text {
 			"lmdb" | "heed" => Ok(Self::Lmdb),
 			"sqlite" | "sqlite3" | "rusqlite" => Ok(Self::Sqlite),
-			"sled" => Err(Error("Sled is no longer supported as a database engine. Converting your old metadata db can be done using an older Garage binary (e.g. v0.9.3).".into())),
+			"sled" => Err(Error("Sled is no longer supported as a database engine. Converting your old metadata db can be done using an older Garage binary (e.g. v0.9.4).".into())),
 			kind => Err(Error(
 				format!(
 					"Invalid DB engine: {} (options are: lmdb, sqlite)",