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+# Fluentd v1.17.0 has been released
+
+Hi users!
+
+We have released v1.17.0 on 2024-04-30. ChangeLog is [here](https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#release-v1170---20240430).
+
+This release is a new release of v1.17 series.
+In this release, we added some new features for some plugins and fixed bugs of Parser.
+
+## Enhancement
+
+### `in_tail`: Add `glob_policy` option for expanding glob capability of `path` and `exclude_path`
+
+In this release, we added a new option [glob_policy](https://docs.fluentd.org/input/tail#glob_policy) for [in_tail](https://docs.fluentd.org/input/tail) plugin.
+
+In previous versions, we can use only `*` in glob patterns for [path](https://docs.fluentd.org/input/tail#path) and [exclude_path](https://docs.fluentd.org/input/tail#exclude_path) option.
+
+Example:
+
+```
+path /path/to/*
+exclude_path ["/path/to/*.gz", "/path/to/*.zip"]
+```
+
+From this version, we can also use `[]`, `?`, and `{}` in glob patterns depending on the `glob_policy` option.
+
+Example:
+
+```
+path "[0-1][2-3].log"
+glob_policy extended
+```
+
+Please see [the document](https://docs.fluentd.org/input/tail#glob_policy) and [#4401](https://github.com/fluent/fluentd/pull/4401) for more information.
+
+### `out_http`: Support AWS Signature Version 4 authentication
+
+In this release, we added a new option `aws_sigv4` for the [method](https://docs.fluentd.org/output/http#method) setting of [out_http](https://docs.fluentd.org/output/http) plugin.
+
+By using this option, `out_http` can use [AWS Signature Version 4](https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html).
+
+For example, this allows `out_http` to write to [Amazon OpenSearch Ingestion](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/ingestion.html).
+
+Please see [the document](https://docs.fluentd.org/output/http#method) and [#4459](https://github.com/fluent/fluentd/pull/4459) for more information.
+
+### `out_http`: Add option to reuse connections
+
+In this release, we add a new option [reuse_connections](https://docs.fluentd.org/output/http#reuse_connections) for [out_http](https://docs.fluentd.org/output/http) plugin.
+
+This option will improve throughput of `out_http`.
+
+Please see [the document](https://docs.fluentd.org/output/http#reuse_connections) and [#4330](https://github.com/fluent/fluentd/pull/4330) for more information.
+
+### `in_http`: Recognize CSP reports as JSON data
+
+In this release, we make the data type of the request where the `Content-Type` is `application/csp-report` be considered JSON by default.
+
+Now, `in_http` can receive [Content Security Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP)'s report by default.
+
+Please see [#4282](https://github.com/fluent/fluentd/pull/4282) for more information.
+
+## Bug Fixes
+
+### Make sure parser returns hash
+
+The record data in an event of Fluentd must be a hash object.
+
+* [Life of a Fluentd event](https://docs.fluentd.org/quickstart/life-of-a-fluentd-event)
+
+However, in the previous versions, some parser plugins could return a non-hash object, such as an array.
+It could cause errors in subsequent processing.
+
+In this release, the following parser plugins have been fixed.
+
+* [parser_json](https://docs.fluentd.org/parser/json)
+* [parser_msgpack](https://docs.fluentd.org/parser/msgpack)
+
+The changes are as follows:
+
+* Make sure to return a hash record.
+* Make sure to accept only a hash or an array of hash.
+
+Here are the details for each case.
+
+#### Example of changed behavior
+
+Config:
+
+```
+
+ @type tcp
+ tag test.tcp
+
+ @type json
+
+
+
+
+ @type stdout
+
+```
+
+Send an array data:
+
+```
+$ netcat 0.0.0.0 5170
+[{"k":"v"}, {"k2":"v2"}]
+```
+
+The result before this version:
+
+```
+{datetime} test.tcp: [{"k":"v"},{"k2":"v2"}]
+```
+
+The result after this version:
+
+```
+{datetime} test.tcp: {"k":"v"}
+{datetime} test.tcp: {"k2":"v2"}
+```
+
+#### Example of resolved error
+
+Config:
+
+```
+
+ @type tcp
+ tag test.tcp
+
+ @type json
+ null_empty_string
+
+
+
+
+ @type stdout
+
+```
+
+Send an array data:
+
+```
+$ netcat 0.0.0.0 5170
+[{"k":"v"}, {"k2":"v2"}]
+```
+
+The result before this version:
+
+```
+{datetime} [error]: #0 unexpected error on reading data host="xxx" port=xxx error_class=NoMethodError error="undefined method `each_key' for [{\"k\"=>\"v\"}, {\"k2\"=>\"v2\"}]:Array"
+```
+
+The result after this version:
+
+```
+{datetime} test.tcp: {"k":"v"}
+{datetime} test.tcp: {"k2":"v2"}
+```
+
+#### Remaining problem: filter_parser
+
+In the previous versions, `filter_parser` could return an array record based on this wrong behavior.
+From this release, it can not return multiple parsed results anymore and Fluentd outputs a warning log in this case.
+This behavior should improve in the future.
+
+Here is an example.
+
+```
+
+ @type sample
+ tag test.array
+ sample {"message": "[{\"k\":\"v\"}, {\"k2\":\"v2\"}]"}
+
+
+
+ @type parser
+ key_name message
+
+ @type json
+
+
+
+
+ @type stdout
+
+```
+
+The result before this version:
+
+```
+{datetime} test.array: [{"k":"v"},{"k2":"v2"}]
+```
+
+The result after this version:
+
+```
+{datetime} [warn]: #0 dump an error event: error_class=Fluent::Plugin::Parser::ParserError error="Could not emit the event. The parser returned multiple results, but currently filter_parser plugin only returns the first parsed result. Raw data: '[{\"k\":\"v\"}, {\"k2\":\"v2\"}]'" location=nil tag="test.array" time=xxx record={"k2"=>"v2"}
+{datetime} test.array: {"k":"v"}
+```
+
+These are the major changes for this release.
+
+In addition, some performance improvements have been included!
+Please see [ChangeLog](https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#release-v1170---20240430) for details!
+
+Enjoy logging!
+
+TAG: Fluentd Announcement
+AUTHOR: clearcode