* Support for `?` [optional field syntax](https://www.elastic.co/guide/en/elasticsearch/reference/current/eql-syntax.html#eql-syntax-optional-fields) if the Elasticsearch flag is enabled * Support for [repeated sequences](https://www.elastic.co/guide/en/elasticsearch/reference/current/eql-syntax.html#eql-with-runs-statement) if the Elasticsearch flag is enabled
0.9.11
_Released 2021-09-22_
Added * Support for `\u{...}` [unicode escape sequences](https://www.elastic.co/guide/en/elasticsearch/reference/current/eql-syntax.html#eql-syntax-escape-characters) in `"` style strings
0.9.10
_Released 2021-08-24_
Added * Endpoint `$variable` syntax, behind parser flag
0.9.9
_Released 2021-02-22_
Added * Elasticsearch `like`/ `like~` syntax, behind parser flag * Elasticsearch `regex` / `regex~` syntax, behind parser flag * Elasticsearch insensitive function syntax `function~(...)`, behind parser flag
0.9.8
_Released 2021-01-14_
Added * Optimization to combine adjacent `wildcard()` calls over the same field