Changes in version 2.0.1.9000                      

  - omit_args now also works for default arguments (@mgirlich, #145).

                 Changes in version 2.0.1 (2021-11-26)                  

                     Changes in version 2.0.0.9000                      

  - Winston Chang is now the maintainer.

  - The default value for the hash argument of memoise() is now taken
    with an indirection in case memoise() is called at the top-level of
    a namespace (r-lib/rlang#1177).

  - Fixed a bug in has_cache() that caused it to get the value
    unnecessarily. (#123)

                 Changes in version 2.0.0 (2021-01-26)                  

  - Memoise now uses caching objects from the cachem package by default.
    These caches support automatic pruning, so that they won't grow
    indefinitely. The older-style cache objects in the memoise package
    are still supported, but we suggest using new-style caches from
    cachem. (#115)

  - Name clashes between function arguments and variables defined when
    memoising no longer occur (@egnha, #43).

  - Add Google Cloud Storage support via cache_gcs()
    (@MarkEdmondson1234, #59)

  - Add compress option for non-memory caches (@coolbutuseless, #71).

  - Use absolute path in cache file system backend, so user can change
    working directory after using relative path (@xhdong-umd, #51, #65)

  - Add drop_cache() to drop the cached result for particular arguments
    (@richardkunze, #78)

  - Suppress messages of aws.s3::head_object within cache_s3's
    cache_has_key to avoid printing of 404 messages for new keys
    (@stelsemeyer, #96).

                 Changes in version 1.1.0 (2017-04-21)                  

  - Caches now hash the function body along with the arguments, to
    ensure functions with identical arguments use a separate file-system
    cache. (#38)
  - Handle missing arguments in memoised functions for simple cases not
    using non-standard-evaluation (#19).
  - memoise() gains a cache= argument to specify an external cache. Two
    types of caches are available, cache_s3() for amazon S3 and
    cache_filesystem() for a file system cache (#25, @danielecook).

                 Changes in version 1.0.0 (2016-01-29)                  

  - memoise() now signals an error if an already memoised function is
    used as input (#4, @richierocks).
  - has_cache() function added which returns a boolean depending on if
    the given call is cached or not (#10, @dkesh).
  - Memoised functions now have a print method which displays the
    original function definition, rather than the memoisation code (#15,
    @jimhester).
  - A memoised function now has the same interface as the original
    function, if the original function is known when memoise is called.
    (Otherwise, the old behavior is invoked, with a warning.) (#14,
    @krlmlr)
  - The enclosing environment of the memoised function is specified
    explicitly, defaults to parent.frame().
  - is.memoised now checks if the argument is a function.
  - Testing infrastructure, full test coverage.

                 Changes in version 0.2.1 (2014-04-22)                  

  - Update to fix outstanding R CMD check issues.

                         Changes in version 0.2                         

New features

  - Memoised functions now have an attribute memoised=TRUE, and
    is.memoised() tests whether a function is memoised. (Contributed by
    Sietse Brouwer.)

Improvements

  - Documentation is now more elaborate, and hopefully more accessible
    to newcomers. Thanks to Sietse Brouwer for the verbosity.