public Class PreferencesMigrations

The tab "Comments" is hard coded using CommentsTab since v5.10 (and thus hard-wired in EntryEditor#createTabs(). Thus, the configuration ih the preferences is obsolete

In 5.0 the format of column names have changed. That made newer versions of JabRef preferences incompatible with earlier versions of JabRef. As some complains came up, we decided to change the variable names and to clear the variable contents if they are unreadable, so former versions of JabRef would automatically create preferences they can deal with.

The former preferences default of columns was a simple list of strings ("author;title;year;..."). Since 5.0 the preferences store the type of the column too, so that the formerly hardwired columns like the graphic groups column or the other icon columns can be reordered in the main table and behave like any other field column ("groups;linked_id;field:author;special:readstatus;extrafile:pdf;...").

Simple strings are by default parsed as a FieldColumn, so there is nothing to do there, but the formerly hard wired columns need to be added.

In 5.1 variable names in JabRefPreferences have changed to offer backward compatibility with pre 5.0 releases Pre 5.1: columnNames, columnWidths, columnSortTypes, columnSortOrder Since 5.1: mainTableColumnNames, mainTableColumnWidths, mainTableColumnSortTypes, mainTableColumnSortOrder