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v0.12

Release 0.12.43 - 2018/04/06

Bug fixes

  • out_forward: Remove debug print

Release 0.12.42 - 2017/12/14

New features / Enhancements

  • Disable tracepoint feature to omit unnecessary insts #1764
  • in_udp: Add receive_buffer_size parameter #1788

Bug fixes

  • in_tail: Ensure close temporaly opened IO object #1756
  • in_tail: Explicitly update position to 0 when the file is truncated #1791
  • in_tail: Properly handle moved back and truncated case #1793
  • out_forward: Rebuild weight array to apply server setting properly #1784

Release 0.12.41 - 2017/11/15

New features / Enhancements

  • in_udp: Add remove_newline parameter #1748

Bug fixes

  • out_forward: Fix elapsed time miscalculation in tcp heartbeat #1738
  • in_tail: Skip setup failed watcher to avoid resource leak and log bloat #1752
  • agent: Add error location to emit error logs #1746
  • filter_parser: Fix dumpped result for avoiding escape sequence injection #1733

Release 0.12.40 - 2017/08/25

Bug fixes

  • record_transformer: Don't create new keys if the original record doesn't have keep_keys keys #1663
  • in_tail: Fix the error when 'tag *' is configured. #1664
  • plugin: Fix load order to avoid file not found when plugins have own native extension #1670

Release 0.12.39 - 2017/07/14

Bug fixes

  • log: Revert 0.12.38 changes to avoid shutdown stuck #1631 #1632

Release 0.12.38 - 2017/07/13

New features / Enhancement

  • in_syslog: Add Add allow_without_priority and default_priority parameters #1608
  • in_syslog: More characters are available in tag part of syslog format #1609
  • in_syslog: Add resolve_hostname and source_address_key parameters #1615
  • filter_grep: Support new configuration format by config_section #1627

Bug fixes

  • log: Capture more fluentd log events during shutdown #1618 #1625

Release 0.12.37 - 2017/06/21

New features / Enhancement

  • parser: Add rfc5424 regex without priority #1601

Bug fixes

  • in_tail: fix timing issue that the excluded_path doesn't apply. #1597
  • in_tail: Detach watchers before updating watcher to avoid broken pos file #1598

Release 0.12.36 - 2017/05/24

New features / Enhancement

  • config: Allow null byte in double-quoted string #1552
  • parser: Support %iso8601 special case for time_format #1562
  • in_tail: Add ignore_repeated_permission_error parameter #1574

Bug fixes

  • in_monitor_agent: Enable in_monitor_agent to find plugin type from its class #1564
  • Ruby 2.4 warns to forward private methods #1579
  • log: Add missing '<<' method to delegators #1558

Release 0.12.35 - 2017/04/19

Bug fixes

  • in_http: Fix X-Forwarded-For header handling. Accpet multiple headers #1535
  • in_tail: Do not warn that directories are unreadable #1540

Release 0.12.34 - 2017/03/25

New features / Enhancement

  • in_syslog/in_udp/in_tcp: Fix hostname lookup and unify parameter name to source_hostname_key #1515
  • in_http: Support application/msgpack header #1506

Bug fixes

  • engine: Label's plugins should be flushed when receive signal #1508

Release 0.12.33 - 2017/03/09

New features / Enhancement

  • parser_syslog: Backport 'Support rfc5424 syslog format' #1495
  • in_forward: Add source_address_key and fix source_hostname_key parameters #1490
  • in_tail: Skip directories when use */ in path #1464
  • in_tail: Add limit_recently_modified parameter to limit watching files #1474
  • in_tail: Skip the refresh of watching list on startup #1487
  • parser: Allow escape sequence in Apache access log #1479
  • log: Add Fluent::Log#<< to support some SDKs #1478

Bug fixes

  • config: Set encoding forcefully to avoid UndefinedConversionError #1477

Release 0.12.32 - 2017/02/02

New features / Enhancement

  • formatter: Port add_newline parameter to v012 #1447
  • record_transformer: remove_keys processing should be last #1433
  • in_tail: Capture unmatched lines #1421
  • in_monitor_agent: Port #1393 to v0.12 for with_ivars query paretemer #1402
  • in_monitor_agent: Port #1387 to v0.12 for retry field #1387
  • Allow msgpack-ruby v1

Bug fixes

  • in_exec: Ensure to sleep for prevending fork bomb #1348

Release 0.12.31 - 2016/12/14

New features / Enhancement

  • output: Add slow_flush_log_threshold parameter #1366
  • formatter_csv: Change fields parameter to required. Now accepts both a,b and ["a", "b"] #1361
  • in_syslog: Add "priority_key" and "facility_key" parameters #1351

Release 0.12.30 - 2016/12/01

New features / Enhancement

  • in_tail: Optimize to split lines #1325
  • in_monitor_agent: Port #1317 changes #1317
  • filter_parser: Add emit_invalid_record_to_error parameter #1339
  • test: Add v0.14 compatible test helpers #1322

Bug fixes

  • Use compat mode instead of stric mode for oj #1304
  • Port #1331 changes for oj #1331

Release 0.12.29 - 2016/09/05

New features / Enhancement

  • in_tail: Add from_encoding parameter #1067
  • filter: Port parser filter to v0.12 #1203
  • config: New config_param options to specify deprecated/obsoleted parameters #1186

Bug fixes

  • config: fix to raise ConfigError for type missing, and its tests #1202
  • filter_record_transformer: Fix to prevent overwriting reserved placeholder keys such as tag #1176

Release 0.12.28 - 2016/08/14

New features / Enhancement

  • in_forward: Add source_hostname_key parameter #807

Bug fixes

  • parser: Ensure strict mode is used for Oj parser #1147

Release 0.12.27 - 2016/08/03

New features / Enhancement

  • config: Add simplified syntax for hash and array #939
  • config: Add include support for Ruby DSL #950
  • in_http: Add support of X-Forwarded-For header #1051
  • in_syslog: Add message_length_limit option to receive longer udp syslog messages #1128

Bug fixes

  • test: Fix test for TimeSlicedOutput #941
  • example: Use @type in example confs #1043
  • Fix regression of fluent-debug command #1046
  • config: Fix wrong message for unsupported parameter #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 #982

Bug fixes

  • Fix string-scrub dependency for ruby 2.0 or earlier support #986

Release 0.12.24 - 2016/05/20

New features / Enhancement

  • buffer: Add drop_oldest_chunk to buffer_queue_full_action parameter #934
  • in_tail: Add "encoding" parameter #889
  • in_tail: Add "path_key" patameter #951
  • in_monitor_agent: Add emit_config parameter to emit plugin configuration together #963
  • config: Support multiline string in " quoted string #929

Bug fixes

  • in_http: Add 'Access-Control-Allow-Origin' to response header #882
  • parser: Fix logger on Fluent::StringUtil to use $log #926
  • out_forward: Add missing error class definition #953

Release 0.12.23 - 2016/05/03

Bug fixes

  • Fix string-scrub dependency on ruby > 2 #933
  • fluent-debug: Fix regression #894

Release 0.12.22 - 2016/03/10

Bug fixes

  • supervisor: Require fcntl library for daemonize #845

Release 0.12.21 - 2016/03/03

New features / Enhancement

  • output: Use error stream in TimeSlicedOutput#emit #791
  • in_tail: Avoid unnecessary open call #788
  • in_tail: Add enable_watch_timer option #811
  • filter_record_transformer: Relax conditions which auto_typecast is applied when enable_ruby yes #817
  • Backport v0.14 refactoring changes

Bug fixes

  • in_tail: Fix input messages loss when receive_lines fail with BufferQueueLimitError #810
  • in_monitor_agent: Remove unnecessary fields from API response with debug mode #802
  • filter_record_transformer: Fix record_transformer to be thread-safe #816

Release 0.12.20 - 2016/01/26

New features / Enhancement

  • in_forward: Add skip_invalid_event paramter to check and skip invalid event #776
  • in_tail: Add multiline_flush_interval parameter for periodic flush with multiline format #775
  • filter_record_transformer: Improve ruby placeholder performance and adding 'record["key"]' syntax #766
  • Add on_exit_process hook point to DetachProcessMixin #757
  • Add descriptions to BufferedOutput and TimeSlicedOutput #759 #760

Bug fixes

  • parser: Don't use BigDecimal in JSON parsing result with Oj #778
  • config: Fix the regression of unused parameter warning inside sub section #765

Release 0.12.19 - 2015/12/21

New features / Enhancement

  • input: Standardize logging level for source configs #743
  • buffer: Add buffer_queue_full_action parameter #745
  • parser/formatter: Use 'oj' when oj is installed in json parser/formatter #748

Bug fixes

  • fluent-cat: fix the regression of --msgpack option #747

Release 0.12.18 - 2015/12/09

New features / Enhancement

  • in_exec: Stop in_exec immediately at shutdown #526
  • in_exec: Support built-in text parsers #704
  • out_forward: raises ZeroDivisionError when no is available #707
  • Add process_name parameter in system to change fluentd's process name #708
  • test: Add ParserTestDriver #702
  • test: Add FormatterTestDriver #712
  • Add parameter description to built-in plugins

Bug fixes

  • fix bug not to protect in-memory-buffer for multi thread emitting / run loop #710
  • in_tail: expand_paths exclude unreadable files #734

Release 0.12.17 - 2015/11/04

New features / Enhancement

  • Engine: Add Engine#msgpack_factory for v0.14 compatibility #693
  • Log shutdown plugin info to check shutdown sequence #689
  • in_monitor_agent: Emit plugin info to use existing plugins #670
  • config: Improve describing plugin parameters #683

Bug fixes

  • Tempfile should be binary mode #691
  • filter_record_transformer: Don't use popular name to prevent field overwrite when enable_ruby is true #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. #657
  • RPC: Implement /api/config.dump and /api/config.getDump APIs to dump in memory config #666
  • Add --show-plugin-config option #663

Bug fixes

  • in_http: Fix add_remote_addr and add_http_headers options not working on bulk request #673
  • parser: RegexpParser#initialize should wrap only Hash configuration #647

Release 0.12.15 - 2015/07/29

New features / Enhancement

  • in_status: Warn deprecation message #635
  • output: Modify TimeSlicedOutput#emit mechanizm to fit BufferedOutput#emit way #634

Release 0.12.14 - 2015/07/17

New features / Enhancement

  • config: Log unused section configuration as warn level #629
  • config: Add '@' to log_level. Keep log_level for backward compatibility #630
  • parser: Add time_key option for RegexpParser #588

Bug fixes

  • out_forward: Add 'dns_round_robin' option #632

Release 0.12.13 - 2015/07/09

New features / Enhancement

  • out_stdout: Support formatter plugins in out_stdout #617
  • filter_record_transformer: Add "auto_typecast" parameter #620
  • out_forward: Support DNS round robin #625
  • out_forward: Support heartbeat_type none to disable heartbeat #626

Bug fixes

  • config: Fix secret option to support config_section #628

Release 0.12.12 - 2015/06/12

New features / Enhancement

  • in_forward: Add chunk format check #611

Bug fixes

  • formatter: Fix SingleValueFormatter to prevent record from modified #615
  • config: configure requires Config::Element, not Hash #616

Release 0.12.11 - 2015/06/01

New features / Enhancement

  • fluent-cat: Add none format #606
  • config: Add secret option #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 #602
  • config: add config_param enum type #600

Release 0.12.9 - 2015/05/19

New features / Enhancement

  • in_tail: Add read_lines_limit parameter to control chunk size #593
  • filter: add filter_stdout plugin #586
  • parser: add keep_time_key option #587
  • parser: keys parameter accepts json array configuration #592
  • Implement RPC server for better instance management #585

Bug fixes

  • out_file: Fix out_file can create directory recursively #595

Release 0.12.8 - 2015/04/22

New features / Enhancement

  • output: Support millisecond for try_flush_interval and queued_chunk_flush_interval #568
  • filter_record_transformer: Support fields which start with @ #574
  • config: Add final attribute to prevent config overwritten by subclass #583

Bug fixes

  • config: fix embedded code parsing #564
  • out_forward: Resend chunks on dropped connection when wait ACK #580

Release 0.12.7 - 2015/03/22

New features / Enhancement

  • in_tail: Add exclude_path option to support exclusion of files #561
  • filter_record_transformer: Support placeholders in record keys #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' #545
  • event: Improve EventStream#to_msgpack_stream performance #549
  • engine: Add tag information emit log

Bug fixes

  • Update msgpack dependency to avoid incompatible encoding problem #550

Release 0.12.4 - 2015/01/23

New features / Enhancement

  • Support 64bit inode environment in in_tail #542

Bug fixes

  • Fix ThreadError occuring on Signal.trap SIGHUP #541

Release 0.12.3 - 2015/01/16

New features / Enhancement

  • parser: nginx and apache2 format can now parse access log without http-version #535
  • filter_record_transformer: Allow non-string values like array / hash #530
  • plugin: Add writable check for path related parameter #401
  • command: -g and -G now works in embedded Ruby environment like Treasure Agent #423

Bug fixes

  • buffer: Fix to flush a buffer by USR1 signal even on retrying #531
  • buffer: Fix TimeSlicedOutput doesn't flush with SIGUSR1 #533
  • buffer: Fix broken calc_retry_wait if Integer is used for retry_wait parameter #529
  • engine: Fix SIGHUP does not reload config #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. #515
  • in_monitor_agent: Render filter plugins #514
  • test: FilterTestDriver has run, emit and getting result methods #519

Bug fixes

  • test: Support @label by TestDriver #517

Release 0.12.1 - 2014/12/14

Bug fixes

  • plugin: Fix router is nil inside out_copy, out_roundrobin, and BufferedOutput secondary #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 #495 #497
  • formatter: Add new CSV formatter #489
  • formatter: Add msgpack format to built-in Formatter to dump records #479
  • input: Add in_dummy plugin #484
  • in_http: Add respond_with_empty_img parameter to return empty gif image #480
  • in_http: Add cors_allow_origins parameter to support CORS request #473
  • output: Add relable output plugin #417
  • config: Add self.name to configure_proxy error message #490
  • log: --suppress-repeated-stacktrace is true by default #446
  • Update msgpack to v0.5 and cool.io to v1.2

Bug fixes

  • config: Fix system config using double memory #496
  • config: Fix v1 config to support multiple tag match #478
  • config: Fix Config.bool_value regression for nil value #477
  • parser: Fix blank column handling of TSVParser #506
  • buffer: Prevent an exception with large num_retries #502
  • out_file: Don't create world writable directory in daemon mode #483

See https://github.com/fluent/fluentd/blob/v0.10/ChangeLog for v0.10 changelog