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11. Change history

11.1. Changes since 1.1

Changed WM_CLIENT_NAME(STRING) from suggested to required for _NET_WM_PID. +
Specification and sample code for the content of WM_CLIENT_NAME(STRING). +
Added _NET_WM_WINDOW_TYPE_SPLASH, _NET_WM_WINDOW_TYPE_UTILITY. +
Added _NET_WM_STATE_FULLSCREEN. +
Added _NET_WM_ALLOWED_ACTIONS. +
Added _NET_WM_STATE_HIDDEN and clarified purpose of + _NET_WM_STATE_SKIP_PAGER and _NET_WM_STATE_SKIP_TASKBAR. Changed + section on virtual desktop implementation to suggest ICCCM compliance + regarding IconicState, using _NET_WM_STATE_HIDDEN to avoid confusion. + Added implementation note for pagers on when to display a window. +
Added button field and new directions for keyboard-initiated actions + to the _NET_WM_MOVERESIZE message. +
Added advice on removing _NET_WM_STATE and _NET_WM_DESKTOP when a window + is withdrawn. +
Added _NET_DESKTOP_LAYOUT to allow a Pager to specify inter-desktop geometry. +
Added _NET_SHOWING_DESKTOP. +
Added _NET_WM_STATE_FLOATING. +

Fix doctype, add author info, update data. +
Change specification description wording to be more inclusive, and to reflect the joint nature of the specification. +
Fix miscellaneous typographical, grammar and spelling errors. +
Clarified _NET_SUPPORTED to include ALL atoms, not just the property names. +
Various corrections to use of MUST and SHOULD. +
Fix problem in _NET_WM_ICON where 'bytes' should have been 'cardinals' +
Replaced ISO-8559-1 characters with entities. +

Clarified the interpretation of client-provided geometries on large desktops. +
Added more explanation for _NET_DESKTOP_NAMES. +
Added _NET_WM_ICON_NAME and _NET_WM_VISIBLE_ICON_NAME. +
Tried to improve the wording of _NET_WM_STRUT explanation. +
Changed _NET_WORKAREA to an array of viewport-relative geometries. +
Updated list of "dependent" properties for _NET_NUMBER_OF_DESKTOPS +to include _NET_WORKAREA and _NET_DESKTOP_VIEWPORT. +
Tidied formatting of all client messages. +

Added information about common non-ICCCM features. +
Added explanation of sending messages to the root window. +
Removed XA_ prefix from type names. +
Clarified that "mapping order" refers to initial mapping +and specify the directions of both orders. +
Clarified that desktops have a common size specified by _NET_DESKTOP_GEOMETRY. +
Rewrote explanation of _NET_DESKTOP_VIEWPORT. +
Tidied formatting of _NET_CURRENT_DESKTOP. +
Replaced "window handle" by "window ID". +
Tidied formatting of _NET_WORKAREA. +
Rewrote the motivation for _NET_VIRTUAL_ROOTS. +
Added advice on Pointer grabs to _NET_WM_MOVERESIZE. +
Fixed typos in _NET_WM_STATE. +
Added _NET_WM_STATE_SKIP_PAGER. +
Tidied formatting of _NET_WM_STRUT. +
Tidied formatting of _NET_WM_ICON_GEOMETRY. +

_NET_SET_NUMBER_OF_DESKTOPS -> _NET_NUMBER_OF_DESKTOPS for consistency. +
_NET_WM_VISIBLE_NAME_STRING -> _NET_WM_VISIBLE_NAME for consistency. +
_NET_WM_STATE: added explanation of permitted extensions. Added explanation of +being set / not set. +
Spellchecked, corrected various typos. +
UTF8 -> UTF-8 for consistency. +
added references to the ICCCM an UTF-8 (incomplete). +
added data and event formats where missing. +
clarified _NET_SUPPORTING_WM_CHECK. +
fixed formatting of _NET_CLOSE_WINDOW message. +

Removed implementation note concerning Gnome's (potential) file manager behaviour. +
The Window Movement section of the implementation notes has been revised. +

Revised revision number for first accepted release 1.9XX -> 1.0preXX. +
Prerequisites for adoption of this specification added. +
Tidied formatting of _NET_CURRENT_DESKTOP for consistency. +
Tidied formatting of _NET_ACTIVE_WINDOW for consistency. Removed doubled text. +
Tidied formatting of _NET_WM_DESKTOP for consistency. +
Killing Hung Processes implementation note added. _NET_WM_PID and _NET_WM_PING now link to this. +
Clarified x_root and y_root meaning for _NET_WM_MOVERESIZE. +
Added contributor list. +

Added _NET_WM_VISIBLE_NAME_STRING +
Removed ambiguity from _NET_NUMBER_OF_DESKTOPS and _NET_DESKTOP_NAMES in combination. +
Set _NET_WM_MOVERESIZE format to 32 for consistency. +
Removed _NET_PROPERTIES. +
Removed comment from _NET_WM_MOVERESIZE. +

Removed packaging of hints into 2 X properties. Jim Gettys points out that the +performance gains of fewer round trips can be better achieved using Xlib +routines. +
Clarified that _NET_DESKTOP_VIEWPORT is in pixels +
_NET_DESKTOP_VIEWPORT is now an array, one for each desktop, to allow for +different active viewports on different desktops +
_NET_WM_STRUT now only applies on desktops on which the client is visible +
Introduced RFC 2119 language, and attempted to clarify the roles of the Window +Manager, Pagers and Applications +
Added _NET_WM_NAME +
_NET_DESKTOP_NAMES now in UTF8 +
Desktops now start from 0 +
Added _NET_WM_PID +
Added _NET_WM_PING protocol +
Added _NET_WM_STATE_SKIP_TASKBAR +

Removed _NET_NUMBER_OF_DESKTOPS client message, as it overlaps unnecessarily with _NET_{INSERT/DELETE}_DESKTOP.
Replaced _NET_WM_LAYER and _NET_WM_HINTS with _NET_WM_WINDOW_TYPE functional hint.
Changed _NET_WM_STATE to a list of atoms, for extensibility.
Expanded description of _NET_WORKAREA and _NET_WM_STRUT.
Removed _NET_WM_SIZEMOVE_NOTIFY protocol.
Added degrees of activation to _NET_ACTIVE_WINDOW client message
Added _NET_WM_ICON
My comments are in [[ ]]. Comments from Marko's draft are in [[MM: ]]

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