Add a note on rust compiler testing and compatibility (#726) (#754)

* Add a note on rust compiler testing and compatibility * prettier
apache · Sep 9, 2021 · 605aa32 · 605aa32
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diff --git a/arrow/README.md b/arrow/README.md
@@ -23,6 +23,14 @@
 
 This crate contains the official Native Rust implementation of [Apache Arrow](https://arrow.apache.org/) in memory format. Please see the API documents for additional details.
 
+## Rust Version Compatbility
+
+This crate is tested with the latest stable version of Rust. We do not currrently test against other, older versions of the Rust compiler.
+
+## Versioning / Releases
+
+Unlike many other crates in the Rust ecosystem which spend extended time in "pre 1.0.0" state, releasing versions 0.x, the arrow-rs crate follows the versioning scheme of the overall [Apache Arrow](https://arrow.apache.org/) project in an effort to signal which language implementations have been integration tested with each other.
+
 ## Features
 
 The arrow crate provides the following optional features:

diff --git a/parquet/README.md b/parquet/README.md
@@ -42,6 +42,10 @@ while let Some(record) = iter.next() {
 
 See [crate documentation](https://docs.rs/crate/parquet) on available API.
 
+## Rust Version Compatbility
+
+This crate is tested with the latest stable version of Rust. We do not currrently test against other, older versions of the Rust compiler.
+
 ## Upgrading from versions prior to 4.0
 
 If you are upgrading from version 3.0 or previous of this crate, you