Update README.md (#195)

README.md

@@ -9,7 +9,7 @@
 
 `neo4rs` is a driver for the [Neo4j](https://neo4j.com/) graph database, written in Rust.
 
-`neo4rs` implements the [bolt specification](https://7687.org/bolt/bolt-protocol-message-specification-4.html#version-41)
+`neo4rs` implements the [bolt specification](https://neo4j.com/docs/bolt/current/bolt/message/#messages-summary-41)
 
 This driver is compatible with Neo4j version 5.x and 4.4.
 Only the latest 5.x version is supported, following the [Neo4j Version support policy](https://neo4j.com/developer/kb/neo4j-supported-versions/).
@@ -52,7 +52,8 @@ Only the latest 5.x version is supported, following the [Neo4j Version support p
 
 ## MSRV
 
-The crate has a minimum supported Rust version (MSRV) of `1.75.0`.
+The crate has a minimum supported Rust version (MSRV) of `1.75.0` as of 0.9.x.
+The version [0.8.x](https://crates.io/crates/neo4rs/0.8.0) has an MSRV of `1.63.0`
 
 A change in the MSRV in *not* considered a breaking change.
 For versions past 1.0.0, a change in the MSRV can be done in a minor version increment (1.1.3 -> 1.2.0)
@@ -63,7 +64,7 @@ for versions before 1.0.0, a change in the MSRV can be done in a patch version i
 > [!IMPORTANT]
 > This driver is a work in progress, and not all features are implemented yet.
 
-Only Bolt versions 4.0 and 4.1 are supported.
+Only Bolt protocol versions 4.0 and 4.1 are supported.
 Support for later versions is planned and in progress.
 
 This means, that certain features like bookmarks or element IDs are not supported yet.