# v0.12 ## Release 0.12.30 - 2016/12/01 ### New features / Enhancement * in_tail: Optimize to split lines https://github.com/fluent/fluentd/pull/1325 * in_monitor_agent: Port #1317 changes https://github.com/fluent/fluentd/pull/1317 * filter_parser: Add emit_invalid_record_to_error parameter https://github.com/fluent/fluentd/pull/1339 * test: Add v0.14 compatible test helpers https://github.com/fluent/fluentd/pull/1322 ### Bug fixes * Use compat mode instead of stric mode for oj https://github.com/fluent/fluentd/pull/1304 * Port #1331 changes for oj https://github.com/fluent/fluentd/pull/1331 ## Release 0.12.29 - 2016/09/05 ### New features / Enhancement * in_tail: Add from_encoding parameter https://github.com/fluent/fluentd/pull/1067 * filter: Port parser filter to v0.12 https://github.com/fluent/fluentd/pull/1203 * config: New config_param options to specify deprecated/obsoleted parameters https://github.com/fluent/fluentd/pull/1186 ### Bug fixes * config: fix to raise ConfigError for type missing, and its tests https://github.com/fluent/fluentd/pull/1202 * filter_record_transformer: Fix to prevent overwriting reserved placeholder keys such as tag https://github.com/fluent/fluentd/pull/1176 ## Release 0.12.28 - 2016/08/14 ### New features / Enhancement * in_forward: Add source_hostname_key parameter https://github.com/fluent/fluentd/pull/807 ### Bug fixes * parser: Ensure strict mode is used for Oj parser https://github.com/fluent/fluentd/pull/1147 ## Release 0.12.27 - 2016/08/03 ### New features / Enhancement * config: Add simplified syntax for hash and array https://github.com/fluent/fluentd/pull/939 * config: Add include support for Ruby DSL https://github.com/fluent/fluentd/pull/950 * in_http: Add support of X-Forwarded-For header https://github.com/fluent/fluentd/pull/1051 * in_syslog: Add message_length_limit option to receive longer udp syslog messages https://github.com/fluent/fluentd/pull/1128 ### Bug fixes * test: Fix test for TimeSlicedOutput https://github.com/fluent/fluentd/pull/941 * example: Use `@type` in example confs https://github.com/fluent/fluentd/pull/1043 * Fix regression of fluent-debug command https://github.com/fluent/fluentd/pull/1046 * config: Fix wrong message for unsupported parameter https://github.com/fluent/fluentd/pull/1132 ## Release 0.12.26 - 2016/05/30 ### Bug fixes * Fix regression of not require sigdump ## Release 0.12.25 - 2016/05/25 ### New features / Enhancement * process: Add detach_process_forward_interval parameter to control emit interval https://github.com/fluent/fluentd/pull/982 ### Bug fixes * Fix string-scrub dependency for ruby 2.0 or earlier support https://github.com/fluent/fluentd/pull/986 ## Release 0.12.24 - 2016/05/20 ### New features / Enhancement * buffer: Add drop_oldest_chunk to buffer_queue_full_action parameter https://github.com/fluent/fluentd/pull/934 * in_tail: Add "encoding" parameter https://github.com/fluent/fluentd/pull/889 * in_tail: Add "path_key" patameter https://github.com/fluent/fluentd/pull/951 * in_monitor_agent: Add emit_config parameter to emit plugin configuration together https://github.com/fluent/fluentd/pull/963 * config: Support multiline string in " quoted string https://github.com/fluent/fluentd/pull/929 ### Bug fixes * in_http: Add 'Access-Control-Allow-Origin' to response header https://github.com/fluent/fluentd/pull/882 * parser: Fix logger on Fluent::StringUtil to use $log https://github.com/fluent/fluentd/pull/926 * out_forward: Add missing error class definition https://github.com/fluent/fluentd/pull/953 ## Release 0.12.23 - 2016/05/03 ### Bug fixes * Fix string-scrub dependency on ruby > 2 https://github.com/fluent/fluentd/pull/933 * fluent-debug: Fix regression https://github.com/fluent/fluentd/pull/894 ## Release 0.12.22 - 2016/03/10 ### Bug fixes * supervisor: Require fcntl library for daemonize https://github.com/fluent/fluentd/pull/845 ## Release 0.12.21 - 2016/03/03 ### New features / Enhancement * output: Use error stream in TimeSlicedOutput#emit https://github.com/fluent/fluentd/pull/791 * in_tail: Avoid unnecessary open call https://github.com/fluent/fluentd/pull/788 * in_tail: Add enable_watch_timer option https://github.com/fluent/fluentd/pull/811 * filter_record_transformer: Relax conditions which auto_typecast is applied when enable_ruby yes https://github.com/fluent/fluentd/pull/817 * Backport v0.14 refactoring changes ### Bug fixes * in_tail: Fix input messages loss when receive_lines fail with BufferQueueLimitError https://github.com/fluent/fluentd/pull/810 * in_monitor_agent: Remove unnecessary fields from API response with debug mode https://github.com/fluent/fluentd/pull/802 * filter_record_transformer: Fix record_transformer to be thread-safe https://github.com/fluent/fluentd/pull/816 ## Release 0.12.20 - 2016/01/26 ### New features / Enhancement * in_forward: Add skip_invalid_event paramter to check and skip invalid event https://github.com/fluent/fluentd/pull/776 * in_tail: Add multiline_flush_interval parameter for periodic flush with multiline format https://github.com/fluent/fluentd/pull/775 * filter_record_transformer: Improve ruby placeholder performance and adding 'record["key"]' syntax https://github.com/fluent/fluentd/pull/766 * Add on_exit_process hook point to DetachProcessMixin https://github.com/fluent/fluentd/pull/757 * Add descriptions to BufferedOutput and TimeSlicedOutput https://github.com/fluent/fluentd/pull/759 https://github.com/fluent/fluentd/pull/760 ### Bug fixes * parser: Don't use BigDecimal in JSON parsing result with Oj https://github.com/fluent/fluentd/pull/778 * config: Fix the regression of unused parameter warning inside sub section https://github.com/fluent/fluentd/pull/765 ## Release 0.12.19 - 2015/12/21 ### New features / Enhancement * input: Standardize logging level for source configs https://github.com/fluent/fluentd/pull/743 * buffer: Add buffer_queue_full_action parameter https://github.com/fluent/fluentd/pull/745 * parser/formatter: Use 'oj' when oj is installed in json parser/formatter https://github.com/fluent/fluentd/pull/748 ### Bug fixes * fluent-cat: fix the regression of --msgpack option https://github.com/fluent/fluentd/pull/747 ## Release 0.12.18 - 2015/12/09 ### New features / Enhancement * in_exec: Stop in_exec immediately at shutdown https://github.com/fluent/fluentd/pull/526 * in_exec: Support built-in text parsers https://github.com/fluent/fluentd/pull/704 * out_forward: raises ZeroDivisionError when no is available https://github.com/fluent/fluentd/pull/707 * Add process_name parameter in system to change fluentd's process name https://github.com/fluent/fluentd/pull/708 * test: Add ParserTestDriver https://github.com/fluent/fluentd/pull/702 * test: Add FormatterTestDriver https://github.com/fluent/fluentd/pull/712 * Add parameter description to built-in plugins ### Bug fixes * fix bug not to protect in-memory-buffer for multi thread emitting / run loop https://github.com/fluent/fluentd/pull/710 * in_tail: expand_paths exclude unreadable files https://github.com/fluent/fluentd/pull/734 ## Release 0.12.17 - 2015/11/04 ### New features / Enhancement * Engine: Add Engine#msgpack_factory for v0.14 compatibility https://github.com/fluent/fluentd/pull/693 * Log shutdown plugin info to check shutdown sequence https://github.com/fluent/fluentd/pull/689 * in_monitor_agent: Emit plugin info to use existing plugins https://github.com/fluent/fluentd/pull/670 * config: Improve describing plugin parameters https://github.com/fluent/fluentd/pull/683 ### Bug fixes * Tempfile should be binary mode https://github.com/fluent/fluentd/pull/691 * filter_record_transformer: Don't use popular name to prevent field overwrite when enable_ruby is true https://github.com/fluent/fluentd/pull/687 ## Release 0.12.16 - 2015/09/30 ### New features / Enhancement * parser: Add null_value_pattern and null_empty_string option for ltsv, csv and tsv. https://github.com/fluent/fluentd/pull/657 * RPC: Implement /api/config.dump and /api/config.getDump APIs to dump in memory config https://github.com/fluent/fluentd/pull/666 * Add --show-plugin-config option https://github.com/fluent/fluentd/pull/663 ### Bug fixes * in_http: Fix add_remote_addr and add_http_headers options not working on bulk request https://github.com/fluent/fluentd/pull/673 * parser: RegexpParser#initialize should wrap only Hash configuration https://github.com/fluent/fluentd/pull/647 ## Release 0.12.15 - 2015/07/29 ### New features / Enhancement * in_status: Warn deprecation message https://github.com/fluent/fluentd/pull/635 * output: Modify TimeSlicedOutput#emit mechanizm to fit BufferedOutput#emit way https://github.com/fluent/fluentd/pull/634 ## Release 0.12.14 - 2015/07/17 ### New features / Enhancement * config: Log unused section configuration as warn level https://github.com/fluent/fluentd/pull/629 * config: Add '@' to log_level. Keep log_level for backward compatibility https://github.com/fluent/fluentd/pull/630 * parser: Add time_key option for RegexpParser https://github.com/fluent/fluentd/pull/588 ### Bug fixes * out_forward: Add 'dns_round_robin' option https://github.com/fluent/fluentd/pull/632 ## Release 0.12.13 - 2015/07/09 ### New features / Enhancement * out_stdout: Support formatter plugins in out_stdout https://github.com/fluent/fluentd/pull/617 * filter_record_transformer: Add "auto_typecast" parameter https://github.com/fluent/fluentd/pull/620 * out_forward: Support DNS round robin https://github.com/fluent/fluentd/pull/625 * out_forward: Support heartbeat_type none to disable heartbeat https://github.com/fluent/fluentd/pull/626 ### Bug fixes * config: Fix secret option to support config_section https://github.com/fluent/fluentd/pull/628 ## Release 0.12.12 - 2015/06/12 ### New features / Enhancement * in_forward: Add chunk format check https://github.com/fluent/fluentd/pull/611 ### Bug fixes * formatter: Fix SingleValueFormatter to prevent record from modified https://github.com/fluent/fluentd/pull/615 * config: configure requires Config::Element, not Hash https://github.com/fluent/fluentd/pull/616 ## Release 0.12.11 - 2015/06/01 ### New features / Enhancement * fluent-cat: Add none format https://github.com/fluent/fluentd/pull/606 * config: Add secret option https://github.com/fluent/fluentd/pull/604 ## Release 0.12.10 - 2015/05/28 ### New features / Enhancement * filter_record_transformer: add renew_time_key option to replace event time with processed field https://github.com/fluent/fluentd/pull/602 * config: add config_param `enum` type https://github.com/fluent/fluentd/pull/600 ## Release 0.12.9 - 2015/05/19 ### New features / Enhancement * in_tail: Add read_lines_limit parameter to control chunk size https://github.com/fluent/fluentd/pull/593 * filter: add filter_stdout plugin https://github.com/fluent/fluentd/pull/586 * parser: add keep_time_key option https://github.com/fluent/fluentd/pull/587 * parser: keys parameter accepts json array configuration https://github.com/fluent/fluentd/pull/592 * Implement RPC server for better instance management https://github.com/fluent/fluentd/pull/585 ### Bug fixes * out_file: Fix out_file can create directory recursively https://github.com/fluent/fluentd/pull/595 ## Release 0.12.8 - 2015/04/22 ### New features / Enhancement * output: Support millisecond for try_flush_interval and queued_chunk_flush_interval https://github.com/fluent/fluentd/pull/568 * filter_record_transformer: Support fields which start with @ https://github.com/fluent/fluentd/pull/574 * config: Add final attribute to prevent config overwritten by subclass https://github.com/fluent/fluentd/pull/583 ### Bug fixes * config: fix embedded code parsing https://github.com/fluent/fluentd/pull/564 * out_forward: Resend chunks on dropped connection when wait ACK https://github.com/fluent/fluentd/pull/580 ## Release 0.12.7 - 2015/03/22 ### New features / Enhancement * in_tail: Add exclude_path option to support exclusion of files https://github.com/fluent/fluentd/pull/561 * filter_record_transformer: Support placeholders in record keys https://github.com/fluent/fluentd/pull/558 ## Release 0.12.6 - 2015/03/03 ### Bug fixes * out_forward: Should handle ECONNREFUSED exeception on TCP heartbeat * test: BufferedOutputTestDriver must use correct buffer chunk type ## Release 0.12.5 - 2015/02/09 ### New features / Enhancement * in_tail: Enable multiline mode if format contains 'multiline' https://github.com/fluent/fluentd/pull/545 * event: Improve EventStream#to_msgpack_stream performance https://github.com/fluent/fluentd/pull/549 * engine: Add tag information emit log ### Bug fixes * Update msgpack dependency to avoid incompatible encoding problem https://github.com/fluent/fluentd/pull/550 ## Release 0.12.4 - 2015/01/23 ### New features / Enhancement * Support 64bit inode environment in in_tail https://github.com/fluent/fluentd/pull/542 ### Bug fixes * Fix ThreadError occuring on Signal.trap SIGHUP https://github.com/fluent/fluentd/pull/541 ## Release 0.12.3 - 2015/01/16 ### New features / Enhancement * parser: nginx and apache2 format can now parse access log without http-version https://github.com/fluent/fluentd/pull/535 * filter_record_transformer: Allow non-string values like array / hash https://github.com/fluent/fluentd/pull/530 * plugin: Add writable check for path related parameter https://github.com/fluent/fluentd/pull/401 * command: -g and -G now works in embedded Ruby environment like Treasure Agent https://github.com/fluent/fluentd/pull/423 ### Bug fixes * buffer: Fix to flush a buffer by USR1 signal even on retrying https://github.com/fluent/fluentd/pull/531 * buffer: Fix TimeSlicedOutput doesn't flush with SIGUSR1 https://github.com/fluent/fluentd/pull/533 * buffer: Fix broken calc_retry_wait if Integer is used for retry_wait parameter https://github.com/fluent/fluentd/pull/529 * engine: Fix SIGHUP does not reload config https://github.com/fluent/fluentd/pull/537 ## Release 0.12.2 - 2014/12/20 ### New Features / Enhancement * filter: Change filter behaviour. If filter method returns nil, its record is removed from stream. https://github.com/fluent/fluentd/pull/515 * in_monitor_agent: Render filter plugins https://github.com/fluent/fluentd/pull/514 * test: FilterTestDriver has run, emit and getting result methods https://github.com/fluent/fluentd/pull/519 ### Bug fixes * test: Support @label by TestDriver https://github.com/fluent/fluentd/pull/517 ## Release 0.12.1 - 2014/12/14 ### Bug fixes * plugin: Fix router is nil inside out_copy, out_roundrobin, and BufferedOutput secondary https://github.com/fluent/fluentd/pull/508 ## Release 0.12.0 - 2014/12/12 ### New Features / Enhancement * config: Introduce @type and @id parameter for system parameter. type and id are still valid. * Filter: old tag trick of "using output plugins as filter" is no longer needed v0.12.0 ships with grep and record_transformer filter plugins * Label: grouping Filter and Output plugins to reduce the complexity of event routing @ERROR built-in label is also added to handle errors in emit Add emit_error_event API to send invalid record to @ERROR * in_forward/out_forward: Add require_ack_response and ack_response_timeout for At-least-once semantics Here is the announcement for above new features: http://www.fluentd.org/blog/fluentd-v0.12-is-released * parser/formatter: Add base class and Plugin.new_xxx/Plugin.register_xxx APIs https://github.com/fluent/fluentd/pull/495 https://github.com/fluent/fluentd/pull/497 * formatter: Add new CSV formatter https://github.com/fluent/fluentd/pull/489 * formatter: Add msgpack format to built-in Formatter to dump records https://github.com/fluent/fluentd/pull/479 * input: Add in_dummy plugin https://github.com/fluent/fluentd/pull/484 * in_http: Add respond_with_empty_img parameter to return empty gif image https://github.com/fluent/fluentd/pull/480 * in_http: Add cors_allow_origins parameter to support CORS request https://github.com/fluent/fluentd/pull/473 * output: Add relable output plugin https://github.com/fluent/fluentd/pull/417 * config: Add self.name to configure_proxy error message https://github.com/fluent/fluentd/pull/490 * log: --suppress-repeated-stacktrace is true by default https://github.com/fluent/fluentd/pull/446 * Update msgpack to v0.5 and cool.io to v1.2 ### Bug fixes * config: Fix system config using double memory https://github.com/fluent/fluentd/pull/496 * config: Fix v1 config to support multiple tag match https://github.com/fluent/fluentd/pull/478 * config: Fix Config.bool_value regression for nil value https://github.com/fluent/fluentd/pull/477 * parser: Fix blank column handling of TSVParser https://github.com/fluent/fluentd/pull/506 * buffer: Prevent an exception with large num_retries https://github.com/fluent/fluentd/pull/502 * out_file: Don't create world writable directory in daemon mode https://github.com/fluent/fluentd/pull/483 See https://github.com/fluent/fluentd/blob/v0.10/ChangeLog for v0.10 changelog