Summary of necessary driver changes* Mark server version 4.0 as EOL from drivers perspective. This means Minimum supported server version will be 4.2 minWireVersion will be bumped to 8 Remove any test infrastructure around the server version 4.0 Cleanup/refactor any code that isn't needed anymore (code needed to support server version 4.0) Version compatibility changes will be communicated at least one minor version (Y) before compatibility with a version is removed. The forthcoming compatibility change MUST be documented in the changelog, preferably in bold or highlighted text.