solr 6.6 LTS update

docs/getting_started/requirements.md

@@ -21,9 +21,13 @@ These setups are tested by QA and are generally recommended setups. For security
 |PHP packages|php-cli</br>php-fpm</br>php-mysql or php-pgsql</br>php-xml</br>php-intl</br>php-curl</br>php-gd *or* php-imagick|php-cli</br>php-fpm</br>php-mysql or php-pgsql</br>php-xml</br>php-mbstring</br>php-intl</br>php-curl</br>php-gd *or* php-imagick|php-cli</br>php-fpm</br>php-mysqlnd or php-pgsql</br>php-xml</br>php-mbstring</br>php-process</br>php-intl</br>php-pear *(optional, provides pecl)*</br>php-gd *or* php-imagick *(via [pecl](https://pecl.php.net/package/imagick))*|
 |Cluster PHP packages</br>|php-redis *(via [pecl](https://pecl.php.net/package/redis))*|php-redis *(via [pecl](https://pecl.php.net/package/redis))*|php-redis *(via [pecl](https://pecl.php.net/package/redis))*|
 
+!!! caution "Solr"
+
+    Solr versions older than 6.6.2 have a security vulnerability. Remember to download or update to a higher version.
+
 |||
 |------|------|
-|Search|Solr (recommended; for performance, features and search quality):</br></br>Solr 6 or higher *Currently tested with Solr 6.6.2*</br></br>Oracle Java/Open JDK: 8 |
+|Search|Solr (recommended; for performance, features and search quality):</br></br>Solr 6 or higher *Currently tested with Solr 6.6LTS*</br></br>Oracle Java/Open JDK: 8 |
 |Graphic Handler|GraphicsMagick or ImageMagick or GD|
 |[Clustering](../guide/clustering.md)|Linux NFS *or* S3/EFS *(for IO, aka binary files stored in content repository)*</br>Redis 3.0 or higher *(preferably a separate volatile-ttl instance for sessions, and an allkeys-lru/allkeys-lfu instance for cache)*</br>[Varnish](http://varnish-cache.org/) 4.1 or higher with [varnish-modules](https://github.com/varnish/varnish-modules/blob/master/README.rst) *or* [Fastly](https://www.fastly.com/) using [our bundle provided with eZ Platform Enterprise](../guide/http_cache.md#serving-varnish-through-fastly) *(for HttpCache)*|
 |Filesystem|Linux ext3 / ext4|

docs/guide/solr.md

@@ -46,9 +46,13 @@ bin/solr start -f -a "-Dsolr.solr.home=multicore"
 
 ##### Solr 6
 
-Download and extract Solr. Solr Bundle 1.3 and higher supports Solr 6 *(currently tested with Solr 6.6.2)*:
+Download and extract Solr. Solr Bundle 1.3 and higher supports Solr 6 *(currently tested with Solr 6.6LTS)*:
 
-- [solr-6.6.2.tgz](http://archive.apache.org/dist/lucene/solr/6.6.2/solr-6.6.2.tgz) or [solr-6.6.2.zip](http://archive.apache.org/dist/lucene/solr/6.6.2/solr-6.6.2.zip)
+- [solr-6.6.5.tgz](http://archive.apache.org/dist/lucene/solr/6.6.5/solr-6.6.5.tgz) or [solr-6.6.5.zip](http://archive.apache.org/dist/lucene/solr/6.6.5/solr-6.6.5.zip)
+
+!!! caution "Solr"
+
+    Solr versions older than 6.6.2 have a security vulnerability. Remember to download or update to a higher version.
 
 Copy the necessary configuration files. In the example below from the root of your project to the place you extracted Solr: