logstash-logback-encoder-6.4

Enhancements

• #386 Remove volatile read/write for deferred markers (@PascalSchumacher)
• #387 Provided better error message when dynamically loading jackson modules fails (@philsttr)
• #393 Added includeContext support for access events (@kersten)
• #394 Replace Charset.forName("UTF-8") with StandardCharsets.UTF_8 (@ArthurGazizov)
• #395 Add new json provider to log root stack trace elements (@worldtiki)
• #396 Added defer support for StructuredArguments (@philsttr)
• #403 Added support for renaming MDC fields (@philsttr)
• #404/#413 Add option to split log messages on newlines (@metacubed)

Bug fixes

• #384 Add missing String#format argument (@PascalSchumacher)
• #385 Add missing space in error status message (@PascalSchumacher)

Documentation Updates

• #401 Fix error in the regex capturing groups example (@saltos)
• #405 Clarify structured argument code for standardized field names (@philsttr)
• #411 Fix typo in readme (@robsonbittencourt)

Dependency Updates

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.10.1	2.11.0
Runtime	uuid-generator	3.2.0	4.0.1
Runtime (shaded)	commons-lang3	3.9	3.10
Compile-time	maven-source-plugin	3.2.0	3.2.1
Compile-time	maven-javadoc-plugin	3.1.1	3.2.0
Compile-time	maven-shade-plugin	3.2.1	3.2.3
Test-time	junit	4.12	4.13
Test-time	assertj	3.14.0	3.16.1
Test-time	mockito	3.2.0	3.3.3

logstash-logback-encoder-6.3

Enhancements

• #378 / #382 Masking support (with inspiration from @rusucosmin)
• #363 jackson upgrades (@sdudzin )
• #374 Added support for a line separator in CompositeJsonLayout (defaults to no line separator for backwards compitability, but can now be configured with a line separator like CompositeJsonEncoder)
• #380 Set Automatic-Module-Name to logstash.logback.encoder in MANIFEST.MF
• #379 Switch from travis ci to github actions (releases are now automated!)
  • Switch from oss-parent to nexus-staging-maven-plugin
  • Use mvnw for building
• Added issue templates

Documentation Updates

• #376 typo fix (@KangSungBum)
• Misc README.md improvements

Dependency Updates

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.9.9.20190807	2.10.1
Compile-time	maven-jar-plugin	3.1.2	3.2.0
Compile-time	maven-source-plugin	3.1.0	3.2.0
Compile-time	maven-javadoc-plugin	3.0.0	3.1.1
Compile-time	maven-gpg-plugin	n/a	1.6
Compile-time	nexus-staging-maven-plugin	n/a	1.6.8
Test-time	assertj	3.13.2	3.14.0
Test-time	mockito	2.28.2	3.2.0

logstash-logback-encoder-6.2

Enhancements

• #341 Pro-actively reopen the connection when the socket reader detects the connection has been closed instead of waiting for the next event
• #343 Introduce writeTimeout to detect stuck TCP write operations, and reopen the connection
• #344 Add getConnectionDestination() to TCP appenders to provide visibility into the currently connected destination
• #346 Async appenders now flush delegate OutputStreamAppenders at the end of each batch
• #353 Don't block trying to publish a keep alive event if the ring buffer is full.
• #357 Include all public packages from logstash-logback-encoder in OSGi Exported-Packages in manifest
• #359 Update jackson-bom to 2.9.9.20190807, which updates jackson-databind to 2.9.9.3 to fix some deserialization security vulnerabilities (logstash-logback-encoder was not affected, since it does not deserialize JSON data) (@kubukoz)

Documentation Updates

• #342 Clarified advantages/disadvantages of disabling write buffer
• #345 Add required downcast in JsonFactoryDecorator example
• #348 Mention in documentation that ShortenedThrowableConverter only applies to Throwables logged as extra arguments (e.g. not structured arguments or markers)
• #358 Fixed xml tag in example (@agentgonzo)

Dependency Updates

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.9.9	2.9.9.20190807
Compile-time	maven-bundle-plugin	4.2.0	4.2.1
Test-time	mockito	2.27.0	2.28.2
Test-time	assertj	2.9.1	3.13.2

logstash-logback-encoder-6.1

• #338 Deferred markers (Markers.defer(...)) are now memoized, so the same value is used when encoding for all appenders
• #339 The default status listener registered by async appenders changed from logback's OnConsoleStatusListener to a custom status listener that only outputs warn/error status messages to standard out
• #340 Marker references are now included when %marker is used in patterns

logstash-logback-encoder-6.0

Overview

Version 6.0 is a major release with several new features and bugfixes.

Several backwards incompatibilities were introduced (see section below). Most have the ability to revert to previous behavior via config changes if necessary.

Support for Java 1.7 has been removed. Java 1.8 or above is now required.

New Features

• #80 Add UDP appender that can use any layout (LogstashUdpSocketAppender)
  Add UDP appender for AccessEvents (LogstashAccessUdpSocketAppender)
  Deprecate LogstashSocketAppender in favor of LogstashUdpSocketAppender
• #127 Added FailureSummaryLoggingAppenderListener for logging a message after the first successfully logged event after a series of failures
• #132 Auto-add console status listener in async appenders, so that errors are visible by default
• #193 Avoid reconnection storm by reworking how reconnectionDelay works, and introducing PreferPrimaryDestinationConnectionStrategy.minConnectionTimeBeforePrimary
• #201 Add ability for the pattern provider to omit fields whose values are empty (omitEmptyFields)
• #274 Support non-JSON output in other Jackson dataformats (e.g. Smile, CBOR, YAML) via decorators
• #326 Support adding additional providers to LogstashAccessEncoder
• #327 / #328 (@brenuart) Trigger ssl handshake on connection establishment, to catch ssl handshake failures early
• #330 (@brenuart) minor coding optimizations
• #334 Support deferred Markers
• #335 Support Marker aggregation and empty markers

Bug fixes

• #336 Add newline at end of stacktrace truncated due to maxLength
• #322 (@bwaldvogel) Fix typo in stack hash doc

Dependency version changes

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.9.8	2.9.9
Runtime	uuid-generator	3.1.5	3.2.0
Runtime (shaded)	commons-lang	2.6	n/a
Runtime (shaded)	commons-lang3	n/a	3.9
Compile-time	animal-sniffer	1.17	1.18
Test-time	mockito	2.23.4	2.27.0
Test-time	commons-io	2.6	n/a

Backwards Incompatibilities

• Support for Java 1.7 has been removed. Java 1.8 or above is now required.

• For #80, LogstashSocketAppender has been deprecated in favor of LogstashUdpSocketAppender with a LogstashLayout

• For #132, the async appenders (including the tcp appenders) will now add a logback OnConsoleStatusListener if no status listener has been registered. This provides a better out-of-the-box experience by ensuring error status messages are visible on the console by default.
  The automatic registering can be disabled by either registering a different logback status listener or by setting addDefaultStatusListener to false on the appender.

• For #193, The preferPrimary connection strategy will now by default ensure a connection has been open for at least 10 seconds before preferring primary again.
  If a connection has been open less than 10 seconds, other secondary destinations will be attempted before trying primary again.
  To revert to the old behavior of always preferring primary, specify 0 seconds for the minConnectionTimeBeforePrimary as documented here

• For #274, to support non-JSON output, a new default JsonFactory decorate(JsonFactory factory) method has been added to the JsonFactoryDecorator interface.
  The old MappingJsonFactory decorate(MappingJsonFactory factory) method has been made a default method, and has been deprecated.
  The new method is the preferred method of the interface. The old method will be removed in a future release.
  Any custom JsonFactoryDecorator implementations should change their implementation to the new method.

logstash-logback-encoder-5.3

• #307 Add support for excluding markers via <includeTags>false</includeTags> (@ramsperger)
• #311 Provide a way to access the fieldValue of SingleFieldAppendingMarker
• #315 Allow Jackson ObjectMapper to scan for available modules on the classpath
• #306 Remove usage of powermock
• Updated license files so ASL 2.0 can be properly detected by github
• Added warning to readme about prefix/suffix not working due to LOGBACK-1326 and logback PR#383

Upgrade Notes

• As part of #315, logstash-logback-encoder will configure jackson to dynamically scan and find jackson modules available on the classpath. See Registering Jackson Modules for more info.
• The Logback11Support class methods were changed from static methods to instance methods to allow for easier unit test mocking. Since this is an internal class, it should not affect end users

Dependency version changes

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.9.6	2.9.8
Compile-time	maven-compiler-plugin	2.3.2	3.8.0
Test-time	mockito	2.9.0	2.23.4
Test-time	powermock	1.7.3	removed

logstash-logback-encoder-5.2

• #288 / #289 Move logback-core to provided scope (@yborovikov)
• #295 Fix #tryJson when messages start with a number
• #299
  • Allow SleepingWaitStrategy's retries and parkTimeNs to be configured
  • Added warning to README about CPU utilization of SleepingWaitStrategy.
  • added support for LiteTimeoutBlockingWaitStrategy
• #294 Don't fill in stack trace in test exception (affects unit test only) (@kampka)

Dependency version changes

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.9.5	2.9.6
Runtime	uuid	3.1.4	3.1.5
Runtime (shaded)	disruptor	3.3.8	3.4.2
Compile-time	animal-sniffer	1.16	1.17
Test-time	assertj	2.9.0	2.9.1

Additionally, logback-core dependency scope was changed from compile to provided (#288), and a note was added to the readme indicating that projects that use logstash-logback-encoder must also directly depend on either logback-classic or logback-access, which both transitively depend on logback-core

logstash-logback-encoder-5.1

• #286 Add ability to output timestamp value as unix timestamps (number or string) (@peterjurkovic)
• #279 / #285 Add ability to customize character escape codes (@fred84)
• #283 Added more packages to OSGI exports (@redvasily)
• #284 Update Jackson verson to 2.9.5 (@msymons)
• #282 Fix bug that prevented configuring request header filters from logback xml
• #276 Fix bug that prevented using global custom field provider within nested provider

logstash-logback-encoder-5.0

Overview

Version 5.0 is a major release with several new features and bugfixes.

Several backwards incompatibilities were introduced (see section below). Most have the ability to revert to previous behavior via config changes if necessary.

Support for Java 1.6 has been removed. Java 1.7 or above is now required.

New Features

• Added Appender Listeners so that applications can receive notifications for the appender lifecycle and event processing. In the future, listeners can be added to implement metrics (#126 ) or customized error handling/reporting (#159, #127). Applications can also provide their own listeners.
• #194 Added Header Filters for deciding which request/response headers to include in access events
• #251 Added a #tryJson pattern operation to fall back to just printing the message if the argument is not valid JSON
• #258 Added a timestampPattern configuration property to LogstashEncoder, LogstashLayout, LogstashAccessEncoder, and LogstashAccessLayout
• Added CompositeJsonFactoryDecorator and CompositeJsonGeneratorDecorator to make it easier to add multiple decorators.
• #257 @jackhammer2k Added new throwableClassName and throwableRootCauseClassName JSON providers

Bug fixes / Minor improvements

• #241 Fixed the pattern JsonProvider to be able to be used within the nestedField JsonProvider
• #237 Fixed setting the buffer initial capacity of the ShortenedThrowableConverter
• #243 Documented using dependencyManagment to sync logback dependency versions
• #259 Upgraded jackson dependencies to 2.9.4 as mentioned in dependency version changes below (@haus contributed to this update)
• com.fasterxml.uuid:java-uuid-generator is no longer included in the logstash-logback-encoder jar, and is now an optional dependency
• #240 @robsonbittencourt Fixed anchors in README.md

Dependency version changes

Usage	Dependency	Old Version	New Version
Runtime	jackson	2.8.9	2.9.4
Runtime (shaded)	disruptor	3.3.4	3.3.8
Compile-time	animal-sniffer	1.15	1.16
Test-time	assertj	2.4.0	2.9.0
Test-time	mockito	1.10.19	2.9.0
Test-time	powermock	1.6.5	1.7.3
Test-time	commons-io	2.4	2.6

Backwards Incompatibilities

• Support for Java 1.6 has been removed. Java 1.7 or above is now required.

• For #112, the default maxDepthPerThrowable of the ShortenedThrowableConverter has been changed to be full/unlimited to be be better aligned with its other configuration parameters.

  To revert to the old value, specify 25 for the maxDepthPerThrowable as documented here

• For #138 and #150, access event field names have been changed.

  Old field name	New field name
  @fields.content_length	content_length
  @fields.elapsed_time	elapsed_time
  @fields.method	method
  @fields.protocol	protocol
  @fields.requested_url	requested_url
  @fields.requested_uri	requested_uri
  @fields.remote_host	remote_host
  @fields.remote_user	remote_user
  @fields.status_code	status_code
  @fields.HOSTNAME	n/a
  @message	message

  To revert to the old field names, specify the following in the encoder/layout configuration:

  <fieldNames class="net.logstash.logback.fieldnames.Pre50LogstashAccessFieldNames"/>

• For #176, the @fields.hostname field has been removed. It's value was always the same as the @fields.remoteHost field value (which is now the remoteHost field)

• For #169, the arguments JSON provider has been enabled by default in the LogstashEncoder, LogstashLayout, LogstashAccessEncoder, and LogstashAccessLayout

  To disable the arguments provider, specify the following in the encoder/layout configuration:

  <includeStructuredArguments>false</includeStructuredArguments>

• For #174, the default field type of the @version field has changed from an integer to a string.

  To change the @version field type back to an integer, specify the following in the encoder/layout configuration:

  <writeVersionAsInteger>true</writeVersionAsInteger>

  or, if you are using the version provider directly, specify the following in the version provider configuration:

  <writeAsInteger>true</writeAsInteger>

• For #261 ESCAPE_NON_ASCII is now disabled by default

  To reenable it, you can use the EscapeNonAsciiJsonFactoryDecorator by specifying the following in the encoder/layout configuration:

  <jsonFactoryDecorator class="net.logstash.logback.decorate.EscapeNonAsciiJsonFactoryDecorator"/>

  If you were already using a jsonFactoryDecorator, you can use the new CompositeJsonFactoryDecorator to add multiple JsonFactoryDecorators

• Request/response header names are now written in lowercase by default

  To revert to the original behavior, specify the following in the encoder/layout/provider configuration:

  <lowerCaseHeaderNames>false</lowerCaseHeaderNames>

logstash-logback-encoder-4.11

• #226 / #228 Add ability to calculate hashes of stack traces (via a StackHashJsonProvider and ShortenedThrowableConverter)
• #230 / #231 Update Jackson to 2.8.9.