This is a vote to release Log4j 3.0.0-alpha, the first release the Log4j 3.x
series.
Please download, test, and cast your votes on the log4j developers list.
[] +1, release the artifacts
[] -1, don't release because...
The vote will remain open for 72 hours. All votes are welcome and we encourage
everyone to test the release, but only Logging PMC votes are “officially”
counted. As always, at least 3 +1 votes and more positive than negative votes
are required.
Changes in this version include:
Added
• Allow plugins to be created through more flexible dependency injection
patterns. (for LOG4J2-1188 by Matt Sicker)
• Allow to force LOG4J2 to use TCCL only. (for LOG4J2-2171 by rmannibucau,
Ralph Goers)
• Allow web lookup to access more information. (for LOG4J2-2523 by Romain
Manni-Bucau, Ralph Goers)
• Allow web lookup of session attributes. (for LOG4J2-2688 by Ralph Goers,
Romain Manni-Bucau)
• Add support for injecting plugin configuration via builder methods. (for
LOG4J2-2700 by Matt Sicker)
• Add scopes API for customizing plugin instance lifecycle. (for
LOG4J2-2852 by Matt Sicker)
• Add qualifier annotations for distinguishing instances of the same type.
(for LOG4J2-2853 by Matt Sicker)
• Create standardized dependency injection API. This is supported in
several plugin categories and other configurable instances previously defined
via system properties. (for LOG4J2-2854 by Matt Sicker)
• Add conditional annotations to support more declarative binding factory
bundle classes. (for LOG4J2-3300 by Matt Sicker)
• Add built-in JSON configuration parser for a useful structured
configuration file format which only requires the java.base module. (for
LOG4J2-3415 by Matt Sicker)
• Add @Ordered annotation to support plugin ordering when two or more
plugins within the same category have the same case-insensitive name. (for
LOG4J2-857 by Matt Sicker)
Changed
• Simplify Maven site phase and align it with the one in 2.x branch. (for
1220 by Volkan Yazıcı)
• Update build to use Java 11 bytecode. (for 480 by Ralph Goers)
• Convert documentation into AsciiDoc format. (for LOG4J2-1802 by Matt
Sicker)
• Rename package core.util.datetime to core.time.internal.format to clarify
these classes are to be considered private. (for LOG4J2-2224 by Remko Popma)
• Move time-related classes from core.util to core.time. Classes considered
private moved to core.time.internal. (for LOG4J2-2225 by Remko Popma)
• Split off Kafka support into a new module log4j-kafka. (for LOG4J2-2227
by Gary Gregory)
• Split off ZeroMq/JeroMq support into a new module log4j-jeromq. (for
LOG4J2-2228 by Gary Gregory)
• Split off SMTP support into a new module log4j-smtp. (for LOG4J2-2230 by
Gary Gregory)
• Split off CSV layout into a new module log4j-csv. (for LOG4J2-2231 by
Gary Gregory)
• Split off JMS support into a new module log4j-jms. (for LOG4J2-2232 by
Gary Gregory)
• Split off JDBC support into a new module log4j-jdbc. (for LOG4J2-2233 by
Gary Gregory)
• Split off Jackson-based layouts into their own modules:
log4j-layout-jackson-json, log4j-layout-jackson-xml and
log4j-layout-jackson-yaml. (for LOG4J2-2237 by Gary Gregory)
• Update builder methods from the "with" prefix to the "set" prefix. (for
LOG4J2-2492 by Gary Gregory)
• Remove deprecated code. (for LOG4J2-2493 by Gary Gregory)
• Fix typo in method MergeStrategy.mergeConfigurations. (for LOG4J2-2617 by
Matt Sicker)
• Separate plugin support to its own module. Plugin annotation processor
will now generate a Java source file compatible with java.util.ServiceLoader
instead of a binary file. (for LOG4J2-2621 by Ralph Goers)
• Rename PluginVisitor and related classes to
ConfigurationInjectionBuilder. (for LOG4J2-2683 by Matt Sicker)
• Locate plugins in modules. (for LOG4J2-2690 by Ralph Goers)
• Split off JNDI support into a new module log4j-jndi. (for LOG4J2-3242 by
Ralph Goers)
• Split off scripting support into a new module log4j-script. (for
LOG4J2-3307 by Ralph Goers)
• Defer loading of StrLookup plugin classes until first usage. (for
LOG4J2-3441 by Matt Sicker)
• Flatten the ThreadContextMap interfaces with default methods. (for
LOG4J2-3626 by Matt Sicker)
• Allow Log4j properties to be provided in JSON files. (for LOG4J2-3658 by
Ralph Goers)
• Unify plugin builders and plugin factories. (for LOG4J2-860 by Matt
Sicker)
• Update Conversant Disruptor from 1.12.15 to 1.12.21. The new version
requires Java 11. (for LOG4J2-2079 by Ralph Goers, Volkan Yazıcı)
Removed
• Remove support for java.io.Serializable in several classes including
Message, Layout, LogEvent, Logger, and ReadOnlyStringMap. (for LOG4J2-3228 by
Matt Sicker)
Fixed
• EnvironmentLookup may throw NPE. (for LOG4J2-2244 by Gary Gregory)
• Move ProcessIdUtil from log4j-api to log4j-core. (for LOG4J2-2279 by Gary
Gregory, Remko Popma)
