Update compatibility matrix to reflect supported versions

README.rst

@@ -36,35 +36,11 @@ Read more about `how to use asyncio with this project <https://elasticsearch-py.
 Compatibility
 -------------
 
-The library is compatible with all Elasticsearch versions since ``0.90.x`` but you
-**have to use a matching major version**:
+Language clients are forward compatible; meaning that clients support communicating
+with greater minor versions of Elasticsearch.
 
-For **Elasticsearch 7.0** and later, use the major version 7 (``7.x.y``) of the
-library.
-
-For **Elasticsearch 6.0** and later, use the major version 6 (``6.x.y``) of the
-library.
-
-For **Elasticsearch 5.0** and later, use the major version 5 (``5.x.y``) of the
-library.
-
-For **Elasticsearch 2.0** and later, use the major version 2 (``2.x.y``) of the
-library, and so on.
-
-The recommended way to set your requirements in your `setup.py` or
-`requirements.txt` is::
-
-    # Elasticsearch 7.x
-    elasticsearch>=7.0.0,<8.0.0
-
-    # Elasticsearch 6.x
-    elasticsearch>=6.0.0,<7.0.0
-
-    # Elasticsearch 5.x
-    elasticsearch>=5.0.0,<6.0.0
-
-    # Elasticsearch 2.x
-    elasticsearch>=2.0.0,<3.0.0
+Elastic language clients are also backwards compatible with lesser supported
+minor Elasticsearch versions.
 
 If you have a need to have multiple versions installed at the same time older
 versions are also released as ``elasticsearch2`` and ``elasticsearch5``.

docs/guide/overview.asciidoc

@@ -10,37 +10,11 @@ on https://elasticsearch-py.readthedocs.io[Read the Docs].
 [discrete]
 === Compatibility
 
-Current development happens in the master branch.
+Language clients are forward compatible; meaning that clients support communicating
+with greater minor versions of Elasticsearch.
 
-The library is compatible with all Elasticsearch versions since `0.90.x` but you
-**have to use a matching major version**:
-
-For **Elasticsearch 7.0** and later, use the major version 7 (`7.x.y`) of the
-library.
-
-For **Elasticsearch 6.0** and later, use the major version 6 (`6.x.y`) of the
-library.
-
-For **Elasticsearch 5.0** and later, use the major version 5 (`5.x.y`) of the
-library.
-
-For **Elasticsearch 2.0** and later, use the major version 2 (`2.x.y`) of the
-library, and so on.
-
-The recommended way to set your requirements in your `setup.py` or
-`requirements.txt` is::
-
-    # Elasticsearch 7.x
-    elasticsearch>=7,<8
-
-    # Elasticsearch 6.x
-    elasticsearch>=6,<7
-
-    # Elasticsearch 5.x
-    elasticsearch>=5,<6
-
-    # Elasticsearch 2.x
-    elasticsearch>=2,<3
+Elastic language clients are also backwards compatible with lesser supported
+minor Elasticsearch versions.
 
 If you have a need to have multiple versions installed at the same time older
 versions are also released as `elasticsearch2` and `elasticsearch5`.

docs/sphinx/index.rst

@@ -29,37 +29,11 @@ Read more about `how to use asyncio with this project <async.html>`_.
 Compatibility
 -------------
 
-The library is compatible with all Elasticsearch versions since ``0.90.x`` but you
-**have to use a matching major version**:
+Language clients are forward compatible; meaning that clients support communicating
+with greater minor versions of Elasticsearch.
 
-For **Elasticsearch 7.0** and later, use the major version 7 (``7.x.y``) of the
-library.
-
-For **Elasticsearch 6.0** and later, use the major version 6 (``6.x.y``) of the
-library.
-
-For **Elasticsearch 5.0** and later, use the major version 5 (``5.x.y``) of the
-library.
-
-For **Elasticsearch 2.0** and later, use the major version 2 (``2.x.y``) of the
-library, and so on.
-
-The recommended way to set your requirements in your `setup.py` or
-`requirements.txt` is:
-
-.. code-block:: python
-
-    # Elasticsearch 7.x
-    elasticsearch>=7.0.0,<8.0.0
-
-    # Elasticsearch 6.x
-    elasticsearch>=6.0.0,<7.0.0
-
-    # Elasticsearch 5.x
-    elasticsearch>=5.0.0,<6.0.0
-
-    # Elasticsearch 2.x
-    elasticsearch>=2.0.0,<3.0.0
+Elastic language clients are also backwards compatible with lesser supported
+minor Elasticsearch versions.
 
 If you have a need to have multiple versions installed at the same time older
 versions are also released as ``elasticsearch2``, ``elasticsearch5`` and ``elasticsearch6``.