Bump version, update docs

CHANGELOG.md

@@ -8,6 +8,18 @@
 
 ### Bugs Fixed
 
+## 8.0.0-beta (2024-08-27)
+
+### New Features
+
+* [#962](https://github.com/toptal/chewy/pull/962): ElasticSearch v.8 support added
+
+* `delete_all_enabled` setting introduced to align Chewy.massacre with wildcard indices deletion disabled in ES 8 by default
+
+### Changes
+
+### Bugs Fixed
+
 ## 7.6.0 (2024-05-03)
 
 ### Changes

README.md

@@ -51,6 +51,7 @@ Chewy is compatible with MRI 3.0-3.2¹.
 
 | Chewy version | Elasticsearch version              |
 | ------------- | ---------------------------------- |
+| 8.0.0         | 8.x                                |
 | 7.2.x         | 7.x                                |
 | 7.1.x         | 7.x                                |
 | 7.0.x         | 6.8, 7.x                           |
@@ -97,7 +98,36 @@ development:
 Make sure you have Elasticsearch up and running. You can [install](https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html) it locally, but the easiest way is to use [Docker](https://www.docker.com/get-started):
 
 ```shell
-$ docker run --rm --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" elasticsearch:7.11.1
+$ docker run --rm --name elasticsearch -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -e "xpack.security.enabled=false" elasticsearch:8.15.0
+```
+
+### Security
+
+Please note that starting from version 8 ElasticSearch has security features enabled by default.
+Docker command above has it disabled for local testing convenience.  If you want to enable it, omit
+`"xpack.security.enabled=false"` part from Docker command, and run these command after starting container (container name `es8` assumed):
+
+Reset password for `elastic` user:
+```
+docker container exec es8 '/usr/share/elasticsearch/bin/elasticsearch-reset-password' -u elastic
+```
+
+Extract CA certificate generated by ElasticSearch on first run:
+```
+docker container cp es8:/usr/share/elasticsearch/config/certs/http_ca.crt tmp/
+```
+
+And then add them to settings:
+
+```yaml
+# config/chewy.yml
+development:
+  host: 'localhost:9200'
+  user: 'elastic'
+  password: 'SomeLongPassword'
+  transport_options:
+    ssl:
+      ca_file: './tmp/http_ca.crt'
 ```
 
 ### Index
@@ -941,6 +971,8 @@ Controller actions are wrapped with the configurable value of `Chewy.request_str
 
 It is also a good idea to set up the `:bypass` strategy inside your test suite and import objects manually only when needed, and use `Chewy.massacre` when needed to flush test ES indices before every example. This will allow you to minimize unnecessary ES requests and reduce overhead.
 
+Deprecation note: since version 8 wildcard removing of indices is disabled by default. You can enable it for a cluster with setting `action.destructive_requires_name` to false.
+
 ```ruby
 RSpec.configure do |config|
   config.before(:suite) do