Changes in version 2.6.1.9000 - In .DollarNames.R6(), add a default value for pattern = "". Changes in version 2.6.1 (2025-02-14) - Closed #298: In .DollarNames.R6(), avoid use of NextMethod(). This is to work around a compatibility issue with RStudio IDE. (#299) Changes in version 2.6.0 (2025-02-12) - R6 methods no longer recommends initialize or .__enclos_env__ in autocomplete. - The deprecated lock parameter has been removed. - R6Class() now prints a message when a finalize method is public instead of private. - When a superclass is not cloneable, then subclasses cannot be cloneable (@IndrajeetPatil, #247). - Fixed #253: Errors could occur when deep cloning if a member object was an environment with a class that had a $ method. Deep cloning now uses get0() instead of $. R6 now requires R >= 3.2. (@zeehio, #274) Changes in version 2.5.1 (2021-08-19) - Removed unused packages from Suggests section in DESCRIPTION. Changes in version 2.5.0 (2020-10-28) - Resolved #195: Slightly clearer message when there is an error in the initialize() method. - Fixed #214: When a non-portable object inheritance was cloned, methods that were inherited (and not overridden) had the wrong environment. (#215, #217) - Printing R6 objects, no longer includes .__active__. Changes in version 2.4.1 (2019-11-12) - Cloning active bindings previously relied on buggy behavior in as.list.environment(), which would return the active binding's function definition rather than the value from invoking the function. In R 4.0, the behavior will chang so that it returns the value. R6 now no longer relies on this buggy behavior. (#192) Changes in version 2.4.0 (2019-02-14) - Fixed #146: Finalizers can now be private methods. (#181) - Fixed #167: Finalizers now run on cloned objects. (#180) Changes in version 2.3.0 (2018-10-04) - Vignettes are no longer included as part of the source package because of their large size. Documentation is now at https://r6.r-lib.org/. - Fixed #125: The print.R6 method now always returns the object that was passed to it. - Fixed #155: In some cases, a cloned object's methods could refer to the wrong super object. (#156) - Fixed #94, #133: When cloning an object which contained a function that is not a method, the corresponding function in the new object would have its environment changed, as though it were a method. Now it no longer has a changed environment. (#156) - Fixed #121: If a finalize method was present, it would prevent objects passed to initialize from getting GC'd. - Fixed #158: If a $set method of an R6 generator object is given the value NULL, it previously removed the named item. Now it adds the named item with the value NULL. - Fixed #159: Printing an R6 object containing a large vector was slow. Changes in version 2.2.2 (2017-06-17) - Fixed #108: When an object with a super object and an active binding in the super object was cloned, the new object's super object did not get the active binding -- it was a normal function. - Fixed #119: When a class had two levels of inheritance, an instance of that class's super object could contain methods that had an incorrect enclosing environment. Changes in version 2.2.1 (2017-05-10) - Vignettes now only try use the microbenchmark package if it is present. This is so that the package builds properly on platforms where microbenchmark is not present, like Solaris. - Fixed ending position for trim(). Changes in version 2.2.0 (2016-10-05) - Classes can define finalizers explicitly, by defining a public finalize method. (#92, #93) - Added function is.R6() and is.R6Class(). (#95) - Fixed #96: R6 now avoids using $ and [[ after the class has been assigned to the object. This allows the user to provide their own methods for $ and [[ without causing problems to R6's operation. Changes in version 2.1.3 (2016-08-19) - The plot S3 method for R6 objects will call $plot on the object if present. (#77) - Fixed printing of members that are R6 objects. (#88) - Fixed deep cloning for non-portable classes. (#85) - Added as.list.R6 method. (#91) Changes in version 2.1.2 (2016-01-26) - Implemented format.R6() and format.R6ClassGenerator, the former calls a public format method if defined. This might change the functionality of existing classes that define a public format method intended for other purposes (#73. Thanks to Kirill Müller) - Functions are shown with their interface in print and format, limited to one line (#76. Thanks to Kirill Müller) - R6 objects and generators print out which class they inherit from. (#67) Changes in version 2.1.1 (2015-08-19) - Fixed a bug with printing R6 objects when a [[ method is defined for the class. (#70) - Fixed cloning of objects that call a super method which accesses private. (#72) Changes in version 2.1.0 (2015-07-04) - Added support for making clones of R6 objects with a clone() method on R6 objects. The deep=TRUE option allows for making clones that have copies of fields with reference semantics (like other R6 objects). (#27) - Allow adding public or private members when there were no public or private members to begin with. (#51) - Previously, when an R6 object was printed, it accessed (and called) active bindings. Now it simply reports that a field is an active binding. (#37, #38. Thanks to Oscar de Lama) - Printing private members now works correctly for portable R6 objects. (#26) - The 'lock' argument has been renamed to 'lock_objects'. Also, there is a new argument, 'lock_class', which can prevent changes to the class. (#52) - Fixed printing of NULL fields. Changes in version 2.0.1 (2014-10-29) - A superclass is validated on object instantiation, not on class creation. - Added debug and undebug methods to generator object. Changes in version 2.0 (2014-08-19) - [BREAKING CHANGE] Added portable option, which allows inheritance across different package namespaces, and made it the default. - Added set() method on class generator object, so new fields and methods can be added after the generator has been created. - All of the functions involved in instantiating objects are encapsulated in an environment separate from the R6 namespace. This means that if a generator is created with one version of R6, saved, then restored in a new R session that has a different version of R6, there shouldn't be any problems with compatibility. - Methods are locked so that they can't be changed. (Fixes #19) - Inheritance of superclasses is dynamic; instead of reading in the superclass when a class is created, this happens each time an object is instantiated. (Fixes #12) - Added trailing newline when printing R6 objects. (Thanks to Gabor Csardi) - The print method of R6 objects can be redefined. (Thanks to Gabor Csardi) Changes in version 1.0.1 (2014-07-17) - First release on CRAN. - Removed pryr from suggested packages. Changes in version 1.0 - First release