Changes in version 0.6                         

  - new SOmerge function that allows multiple objects to be combined
    into a single map object

  - new SObin function that will create a raster density layer from
    longitude-latitude points

  - SOgg now does a better job of matching colours and text sizes to
    those specified in the input objects, so ggplot2-based maps should
    now be more visually consistent with non-ggplot2-based maps

  - new data set fronts_park that provides an alternative set of front
    locations as derived by Park & Durand 2019. Use it with e.g.
    SOmap(fronts = "Park") (or SOmap(fronts = TRUE) or SOmap(fronts =
    "Orsi") for the Orsi et al. 1995 front locations)

  - simplified (smaller size, faster to plot) layer for CCAMLR planning
    domains

  - various bug fixes and adjustments to cope with updates to package
    dependencies

                        Changes in version 0.5.1                        

  - lots of bug fixes

  - changes to internal SOmap object structures

                        Changes in version 0.4.0                        

  - Allow SOplot() to add RGB raster objects.

BREAKING

  - parameter names to many functions have been changed, to make them
    case- and style-consistent

  - SOauto_map renamed to SOmap_auto for consistency

CHANGES

  - refactored ggplot code

  - improved SOmap_auto functionality

                     Changes in version 0.2.1.9005                      

BREAKING

  - SOauto_map() function and class is now defunct, replaced by
    SOmap_auto().

CHANGES

  - Arguments mask and trim_background now removed from SOmap_auto().

  - Argument buffer removed from SOmap_auto(), changed expand to numeric
    fraction (expand = 0 equivalent to old expand = FALSE).

  - Argument sample_type to SOmap_auto() moved to internal function
    automap_nothing().

  - New internal functions to become the engine behind SOmap_auto(),
    automap_maker() to create a background extent from disparate inputs,
    and automap_nothing() to create a background by random data.

  - New auto extent logic for SOmap_auto() to address #30.

  - New reproj::reproj methods for SOmap_auto and SOmap classes.

                     Changes in version 0.1.3.9000                      

  - Added control to SOauto_map to draw sp lines as lines, points as
    points correctly.

  - Added a NEWS.md file to track changes to the package.