Release 0.9.1
* An XML formatter of the output generated by the Lint4j Ant tasks has been added
* Fixed broken ignorePackage element in Ant task 
* Fixed issue when an inner class was passed via the -classes command line flag
* Fixed a major memory leak exposed in the eclipse plugin
* Fixed wrong message id for warning about serialization support fields in non-serialzable classes that threw an exception

Release 0.9
* Fixed a false positive warning about an abstract class w/o abstract methods, although only partially implementing declared interfaces
* Added a warning about empty method implementations in an abstract class
* Added a warning about an abstract method shadowing another abstract method in a superclass
* Reclassified warning about hardcoded newlines to severity 5
* Reclassified warning about casts of subclasses to severty 3
* Fixed wrong error line numbers for serialVersionUID or serialPersistentFields in Externalizable
* Non-static final fields initialized by Unary or Binary operations are now properly detected as constants which should be declared static
* Fixed an issue where Java extensions where added to the classpath with a wrong prefix
* Don't use the Java VM classpath to resolve dependencies on class files
* Fixed a bug where the base package of a package specification such as stuff.* was not checked correctly
* Prevent visiting the same package multiple times
* Fixed a false positive warning about array types with more than one dimension not being serializable
* Fixed a false positive warning about static inner classes needing a serialVersionUID

Release 0.8.2
* New warning if a class implements an interfaces that is implemented already by a superclass
* New warning if an interfaces declares a method that is declared in one of the extended interfaces
* Fixed an Assertion Error that appeared when Lint4j was executed with assertions enabled
* Fixed a bug that stopped audit for a complete package if one file contained a parsing error
* XML report: Support added for non-commented Lines of Code metric
* XML report: Fix for nested interfaces that were not included in interface count
 
Release 0.8.1
* Support for XML reports used by the maven plugin
* Fixed a ClassCastException when analyzing files that contain interfaces
* New Ant templates in the examples directory to get started quickly

Release 0.8:
* Lint4j can now audit class files in the -sourcepath argument
* Now adds contents of java.ext.dirs property to the classpath
* Line numbers of methods from binary files are now used in error messages
* Reduced memory usage for binary classes
* Fixed an initialization issue that resulted in false positive warning about a class not being Cloneable
* Updated and extended examples
* Ant task: Added toFile argument for text formatters
* Ant task: allow multiple formatters
* Added file based checking of source files
* Added the capability of scanning source files in jar or zip files
* Fixed shell script issue when path names contained spaces
* Fixed a parser issue with comments starting with "//:", reported by Bruce Eckel
* updated PDF documentation

Release 0.7.1:
* support for cygwin on Windows
* new warning if equals() is called on an array type
* new warning if strings are compared using ==
* new warning if a class overrides clone() but does not implement Cloneable
* new warning if clone() contains a constructor call of the enclosing type
* new warning if a string contains a hardcoded newline instead of using the system property
* new warning if an abstract class does not contain at least one abstract method
* new warning if an abstract class does not contain at least one method, and may be replaced by an interface
* new warning about methods which introduce operating system dependencies (System.getenv(), Runtime.exec())
* several bug fixes that improve accuracy when types were loaded from binary inner classes
* fix for a bug in the type analysis involving inner interfaces
* reclassified object type comparison using == as warning level 4 as a result of the special handling of arrays and strings
* improved Ant integration examples


Release 0.7:
* First cut of EJB support: 13 kinds of EJB violations are detected
* Windows batch file support
* new warnings: assignments without effect, accidental assignment of a boolean value, method/constructor confusion
* complete web site overhaul
* PDF documentation
* new Ant task example
* new example checks for PetStore, Smart Ticket, ECPerf, and Adventure Builder
* reprioritized and clarified warnings
* bug fixes


Relase 0.6 :
* created an Ant task for lint4j
* display the severity of warnings
* print warnings for non-existing paths in -sourcepath and -classpath
* lint4j launcher: allow checking per class with option -classes
* lint4j launcher: added -version flag
* lint4j launcher: handle wrong arguments and exceptions gracefully and print usage
* lint4j launcher: updated usage information
* lint4j launcher: -exact flag displays only warnings with the same severity as specified with -v
* lint4j launcher: -J flag to pass VM flags
* new check for catching and not rethrowing Throwable, and Error subclasses
* handle "//" comments that are terminated with EOF instead of EOL gracefully
* removed log4j dependency
* reprioritized and clarified warnings
* bug fixes

Release 0.5.1 (12/22/2003):
* fixed a wrongly reported serialization problem that occurred when the first non-serializable class in the inheritance hierarchy had a protected default constructor
* fixed several problems in the parsing engine
* new check to detect inherited readExternal() and writeExternal() methods when the subclass has additional serializable fields
* new check to detect object fields that are constants, and that can be made static
* new check to detect an unnecessary return statement at the end of a method returning void
* new checks to detect empty blocks in synchronized, while, finally, try,  and if constructs
* new check to detect confusing "if" statements such as
if(!expression)
  this;
else
  that;
* clarified many warning messages
* downgraded warning about zero-length arrays to lowest warning level (5)
* integrated log4j as logging framework

Release 0.5 (08/07/2003):
* first public release

Work on Lint4j started October 2002