^The exact history is unknown. This date comes from changelog entries in the src/TODO file in the Git repository (SHA1: eb6b3842a). But it is probably earlier than that. Dec 1997 was release v4.1 already.
^Content Dependent (System) refers to a system which attempts to detect the dominant type of files in that folder and then select the most appropriate view mode for you automatically.
^Optional image thumbnailer plugin since v0.3.4 (24/5/2007)
^The text interface, which can be partially graphical with some plugins, such as embedded image/video viewers, for example. But the text interface is only emulated with the ConEmu mod - it is graphical and TrueColor in reality.
Twin-panel file managers have obligatory connected panels where action in one panel results in reaction in the second. Konqueror supports multiple panels divided horizontally, vertically or both, but these panels do not act as twin panels by default (the user has to mark the panels he wants to act as twin-panels).
Network protocols
Information on what networking protocols the file managers support. Note that many of these protocols might be supported, in part or in whole, by software layers below the file manager, rather than by the file manager itself; for example, the macOS Finder doesn't implement those protocols, and the Windows Explorer doesn't implement most of them, they just make ordinary file system calls to access remote files, and Konqueror either uses ordinary file system calls or KIO slave calls to access remote files. Some functions, such as browsing for servers or shares, might be implemented in the file manager even if most functions are implemented below the file manager.
^ abNFS support requires either the freely downloadable Windows Services for UNIX or is built-in starting with Windows Vista Enterprise and Ultimate editions as Subsystem for Unix-based applications (SUA).
^WebDAV is supported via Microsoft Windows' built-in Network Places/Mapped Drive functionality.
^ abFTP support in these file managers requires the installation of NetDrive or WebDrive.
^SSH support in these file managers requires the installation of SftpDrive or WebDrive.
File features
Information on what basic file features the file managers support.
^ abLiteral - meaning the size of the directory file itself, not the number or sizes of the files it points to (commonly called its "contents"). Typically a few kilobytes.
^Support is provided via a free third-party plugin.
Search features
Information on what file searching features the file managers support. RegExp include the possibilities of nested Boolean searches, thus implicitly all file managers supporting RegExp search support also Boolean searches.
^ abAbility to save templates containing all search settings (file filter, metadata requirements etc.). Results of saves searches are always live, so not the results but the search conditions are saved.
^ abAlso known as iterative searches. For example the ability to finish one search and then perform a new search a) only within these results (intersect the two result sets / the requirements of both searches have to be met), 2) adding to these results (combine both result sets to a bigger set) or 3) subtract from those results (original result set reduced by intersection of result sets).
Entry Notes (s)
^Altap Salamander Search offers RegExp for defining the file content.
^ abSupport is provided by the underlying operating system.
^ abcSupport is provided via a free third-party plugin.
^ abCan integrate with Beagle to provide more searching functionality.
^Unicode support depends on Mac OS version. Mac OS X's Finder includes full Unicode support, while Mac OS 8 and earlier does not. May be supported in >=8.1 and <=9.2 if using Unicode filesystems.
^ abFile and folder icons customizable on OS level and via folder properties
^User can manually change icon themes including toolbar, file and folder icons. User can also change the color scheme to a pre-defined one or manually pick a color for each element in preferences.
^User can change icon themes in preferences, which change the toolbar, file and folder icons. User can also change the color scheme to a pre-defined one or manually pick a color for each element (in preferences).
^ abDirectory Opus 5.82 Magellan II is the last commercial version available for Amiga. Full and registered version has been released for free with the AmiKit distribution. Directory Opus 4 is maintained separately under an open source license.
^Files matching certain user defined criteria (e.g. name pattern, attributes) are displayed in another color. Example: Since Windows 2000, the UI guide requires NTFS compressed files and folders displayed in blue, whereas uncompressed ones are black.
^Mass Rename is a feature to rename large number of files in a convenient way and including a preview, see the screenshot for an example. Common options are subdirectory inclusion, wildcards, manual mode (offering to edit names as text files in editors), counters, time related fields (e.g. "date created"), path related fields (e.g. "parent directory name"), regular expressions, etc. See also: Batch renaming.
^Altap Salamander offers to show only selected files and hide unselected ones, also in picture viewer, etc. For selection, the usual wildcards and add/subtract/intersect with 1...N stored selections are offered.
^ACL is dependent on the type and version of file- and operating system. Altap Salamander offers quick access to owner, auditing and permission settings in WinXP with NTFS 5.
^Only actions operating on filesystem data (filename, path, timestamps, acls, etc.); file contents have separate and independent per-file undo/redo. Filesystem actions that modify file contents (deleting, overwriting, truncating, &c.) can be undone/redone with optional integrated use of automatic trash/backup/auto-save/version-control features.
^With plug-ins, or this can be implemented as a macros
^ abcThe encryption feature in Windows 2000 Professional, Windows XP Professional, and Windows Server 2003 is in fact a user-transparent filesystem-level encryption feature for NTFS. The file manager merely enables or disables it.
^Supported up to Windows XP only. Document scraps are not supported in Windows Vista and later.