Filtered query in Elasticsearch 2

Elastic Stack Elasticsearch
1

https://www.elastic.co/guide/en/elasticsearch/guide/current/_combining_queries_with_filters.html#filtered-query
tells that a filtered query can be used in Elastic search 2.0.
But at https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-filtered-query.html tells us that
Filtered quey is deprecated in 2.0

Which one is right?

2

The pages in the Definitive Guide state right on top:

PLEASE NOTE: We are working on updating this book for the latest version.
Some content might be out of date.

The reference guide is the most up-to-date guide. The definitive guide,
still does not reflect 2.0. I am assuming there will be a push to update
the guide all at once and not just a page at a time.

3

curl -XGET 'http://localhost:9200/cstest/teset1/_search?pretty=true' -d '
{
"query" : {
"filtered": {
"filter": {
"range": {
"publish_date": {
"gte": "2014-09"
}
}
}
}
}
}'

works in elasticsearch 2. This is a filtered query right?