Alpha 7 prerelease (43fc7cf908) (#1106) [deploy][prerelease]

Author: diemol

Base/Dockerfile

@@ -71,7 +71,7 @@ COPY supervisord.conf /etc
 RUN  mkdir -p /opt/selenium /var/run/supervisor /var/log/supervisor \
   && touch /opt/selenium/config.json \
   && chmod -R 777 /opt/selenium /var/run/supervisor /var/log/supervisor /etc/passwd \
-  && wget --no-verbose https://github.com/SeleniumHQ/docker-selenium/raw/alpha-jars/selenium-server-4.0.0-alpha-7-5a5bc38279.jar \
+  && wget --no-verbose https://github.com/SeleniumHQ/docker-selenium/raw/alpha-jars/selenium-server-4.0.0-alpha-7-43fc7cf908.jar \
     -O /opt/selenium/selenium-server.jar \
 #  && wget --no-verbose https://selenium-release.storage.googleapis.com/4.0-alpha-6/selenium-server-4.0.0-alpha-6.jar \
 #    -O /opt/selenium/selenium-server.jar \

README.md

@@ -6,6 +6,20 @@ and made the source code freely available under the [Apache License 2.0](LICENSE
 ![Build & test](https://github.com/SeleniumHQ/docker-selenium/workflows/Build%20&%20test/badge.svg?branch=trunk)
 ![Deployments](https://github.com/SeleniumHQ/docker-selenium/workflows/Deploys/badge.svg)
 
+# :point_right: Status: Grid 4 is under development and on a [Alpha stage](https://en.wikipedia.org/wiki/Software_release_life_cycle#Alpha)
+We are doing prereleases on a regular basis to get early feedback. This means that all other Selenium components
+can be currently at a different alpha version (e.g. bindings on Alpha 6, and these Docker images on prerelease Alpha 7).
+
+Docker images for Grid 4 come with a handful of tags to simplify its usage, have a look at them in one of 
+our [prereleases](https://github.com/SeleniumHQ/docker-selenium/releases/tag/4.0.0-alpha-7-prerelease-20200826)
+
+To get notifications of new prereleases, add yourself as a watcher of "Releases only". 
+
+Doubts or questions? Please get in touch through the different communication channels available in the **Community** section.
+
+Looking for Grid 3? Head to the [Selenium 3 branch](https://github.com/SeleniumHQ/docker-selenium/tree/selenium-3). This branch
+will be having new browser releases until Grid 4 has its major release.
+
 ## Community
 
 Do you need help using these Docker images?