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==============================================
 'gschem and Friends' Electronic Design Suite
==============================================

Copyright (C) 1998-2013 gEDA Developers

This file documents important user-visible changes in gEDA/gaf.  For
more information, please consult the `ChangeLog' file.

Notable changes in gEDA/gaf 1.9.1
=================================

* Unbalanced overbar markers are now rendered correctly.

* Most tools now no longer set the GEDADATA or GEDADATARC environment
  variables (they still obey them though).

* `gschem' now provides a path drawing tool, accessed using <A H> or
  the "Add Path" menu item.

  - Add a cusp node by left-clicking.

  - Add a Bezier curve node by left-dragging from the node point to
    the control point.

  - End the path by clicking on the same node point twice, or clicking
    on the start node to close the path.

* On desktops that reparent menu bars (e.g. Ubuntu Unity) it is once
  again possible to paste the clipboard using the menus.

* A number of `gschem' editing behaviour changes were made:

  - Double-clicking on an entry in the "In Use" tab of the component
    selector now behaves the same way as double-clicking in the
    "Libraries" tab.

  - When new attributes are attached to a net, they are placed at a 50
    unit offset.

  - The text color is now used as the default color for `pinlabel='
    attributes.

  - Pin attributes are no longer automatically replaced when rotating
    or mirroring pins.

  - It is possible to edit a text object even when other non-text
    objects are selected.

  - Control grips are now always drawn at the same on-screen size.

* `gschem' has new icons for many editing commands.

* `gaf export' now accepts a `--scale' option.

* The `--size', `--margins' and `--align' options to `gaf export' can
  now accept their multiple arguments separated with a space ` ', a
  colon `:' or a semicolon `;'.

* `gaf config' now handles the -p option properly.

* `gnetlist', `gsymcheck' and `gaf' now output internationalised
  messages.

* New Scheme procedures were added. Please see the "geda-scheme" info
  manual for more details.

  - The (gschem action) module contains procedures for working with
    user editing actions (i.e. commands accessed via the menus or
    keybindings).

  - Two new hooks were added: `bind-keys-hook' is called whenever
    keymap bindings are changed; `action-property-hook' is called when
    action properties are changed.

Notable changes in gEDA/gaf 1.9.0
=================================

* A new schematic renderer library, `libgedacairo' has been added, and
  all tools have been updated to use it.  Related changes:

  - The following configuration functions have been removed:

         output-capstyle         paper-sizes
         output-color            postscript-prolog
         output-orientation      print-command
         output-type             setpagedevice-orientation
         paper-size              setpagedevice-pagesize

  - The following `gschem' configuration items have been added:

         print-paper             print-color
         print-orientation

  - `gschem' now generates PDF files rather than PostScript or EPS
    files.

  - `gschem' now uses a standard GTK print dialog (with printer
    selection, print preview, etc.)

* A new `gaf' command-line utility has been added.  It provides a
  number of subcommands:

  - `gaf export' can be used to convert schematic files to PNG, SVG,
    PDF, PS and EPS, with detailed control of paper size and margins.
    It supports multi-page PDF and PS output.

  - `gaf config' can be used to manipulate the project, user, and
    system configuration stores (see below).

  - `gaf shell' provides a Scheme REPL for batch manipulation of
    schematic and symbol files.

* New project, user and system configuration stores have been added,
  using a format similar to .desktop files.  They can be manipulated
  using the `gaf config' tool.  Configuration parameters for most
  tools will be converted to use this mechanism in future releases.

* The changes to highlighting of dangling net ends in gEDA/gaf 1.8.0
  have been reverted.  All dangling ends are once again flagged with a
  brightly-coloured square.

* When editing a component with the `gschem' multi-attribute editor,
  the dialog will now show the symbol name in its title.

* When using "Down Schematic" command in `gschem', an error message
  will now be displayed if the subcircuit schematic cannot be loaded.

* Printing now uses a light background color map by default.

* Objects can now have the line end "cap style" adjusted in `gschem'.

* `gnetlist' now accepts the `-i' and `-g' command-line arguments
  together.  If you specify both `-i' and `-g', `gnetlist' will enter
  the Scheme REPL after loading the requested backend but before
  executing it.

* `gattrib' now has translations for the user interface and various
  messages.

Notable changes in gEDA/gaf 1.8.0
=================================

* `gschem' and `gnetlist' have updated and rewritten user guides.

* All tools now give more informative error messages if they are
  unable to load schematic or symbol files due to syntax errors.

* All tools now correctly handle schematic and symbol files with `\r',
  `\n', or `\r\n` line endings, or a mixture.

* Unconnected pin ends and net ends are now all drawn with the same
  box marker in `gschem' and printed output.

* Net segments with at least two connections (including indirect
  connections via `netname=' attributes) are now drawn with arrowheads
  rather than box markers on dangling ends in `gschem' and printed
  output.

Notable changes in gEDA/gaf 1.7.2
=================================

* `geda-gaf' now requires GTK+ 2.16.0 or later.

* A greatly expanded Scheme API has been added to gEDA/gaf for use by
  extension authors.  See the `geda-scheme' Info manual for more
  details.  Existing extensions may need to be modified to load the
  `(geda deprecated)' or `(gschem deprecated)' modules.

* The `component-library-search' function for `gafrc' files now skips
  directories without symbols, and searches for libraries recursively.

* `gschem' keybinding improvements:

  - Keybindings are now unaffected by Caps Lock.

  - Keystrokes are displayed using the same characters as on keycaps
    (e.g. `:' instead of `colon').

  - Keystrokes may use extended modifiers (Super, Hyper and Meta).

  - Key bindings can be modified in any rc file or interactively using
    the `global-set-key' function.  See notes in `system-gschemrc' for
    examples.

* `gschem' now displays help files and component documentation on all
  platforms, including Windows.  The `locate' tool is no longer used
  to search for component documentation files.

* The `schdiff' tool for generating visual diffs of schematics and
  symbols has been added.  It can be used with most version control
  systems.  See `man schdiff' for more details.

* The `bom' and `bom2' backends to `gnetlist' now give error messages
  if no attribute file can be found.  The `-O attrib_file=FILE' and
  `-O attribs=ATTRIB,ATTRIB...' options have also been added.

* A new `ewnet' backend has been added to `gnetlist'.  This outputs
  netlists for use with the National Instruments ULTIboard layout
  tool.

* The `verilog' backend to `gnetlist' now supports concatenated net
  naming like "{a,b,c[3:0]}".

* `gsch2pcb' no longer supports the `m4_command' parameter in project
  files.

* The `--m4-pcbdir' and `--m4-file' arguments to `gsch2pcb' now work
  again.

* `gsymfix.pl' has been renamed to `gsymfix'.

* Man pages are now available for all programs installed as part of
  gEDA/gaf.

* The undocumented programs `gnet_hier_verilog', `gsymupdate', `gschupdate'
  and `sch2eaglepos.sh' are no longer installed to ${prefix}/bin.

Notable changes in gEDA/gaf 1.7.1
=================================

* gEDA is now compatible with Guile 2.0.

* gEDA/gaf applications no longer complain when trying to load an rc
  file twice, or when an rc file doesn't exist.

* `gschem' allows objects to be moved by dragging without having to
  select them first.

* `gschem' now supports keybindings with more than one modifier key,
  and "Deselect" is bound to <Control Shift A> by default.

* `gnetlist' correctly handles multiple renames of the same net.  This
  resolves some long-standing bugs with multipage schematics.

* The `spice-sdb' backend for `gnetlist' now has built-in support for
  `SUBCKT_NMOS' and `SUBCKT_PMOS' devices.

* A new `makedepend' backend has been added to `gnetlist'.  It
  generates Makefile code for SPICE simulation dependencies.

* Visibility of embedded component attributes are now preserved by
  `gattrib'.

* `gsch2pcb' correctly handles footprint names with hyphens (`-').

* `gsch2pcb' project files support quoting and escaping in
  `schematics' entries.

* Considerable enhancements to Unicode support when printing
  schematics or exporting PostScript.

Notable changes in gEDA/gaf 1.7.0
=================================

* All gEDA/gaf applications now handle configuration files much more
  strictly, and provide much more useful feedback when an error
  occurs.

* Several changes to `gschem' command-line options:

  - The `-t' option is no longer supported.

  - Several command-line options now support a long-form alternative.

  - The `-s' option can now be used to run multiple Scheme scripts
    during `gschem' startup.

  - A new `-c' option is available, which runs a Scheme expression
    during `gschem' startup.

  - A new `-L' option is available, which adds a directory to the
    Scheme load path.

  - A new `-V' or `--version' option is available, which displays
    version information.

* `gschem' now provides a "Select All" function, which is bound to
  <Control a> by default, along with a corresponding "Deselect"
  function.

* In the `gschem' "Add component" dialog, filtering the component
  library will expand matching libraries.  If the filter is cancelled,
  all libraries are collapsed.  Components can now be selected by
  double-clicking on them in the component list.

* The `gschem' "Edit Text Properties" dialog now has an easier to use
  "Alignment" menu.

* Printed text size now better matches on-screen text size in
  `gschem'.

* Special characters, including commas, are now escaped or quoted
  appropriately in `gattrib' CSV output.

* Several changes to `gnetlist' command-line options:

  - Four command-line options specific to the `spice-sdb' backend have
    been removed.  They can be replaced with `-O <option>' according
    to the following table:

        -e, --embedd              -O embedd_mode
        -I, --include             -O include_mode
        -n, --nomunge             -O nomunge_mode
        -s, --sort                -O sort_mode

  - The list of available backends is now obtained using a new
    `--list-backends' option.  `-g help' no longer outputs a list of
    backends.

  - A new `-L' option is available, which adds a directory to the
    Scheme load path.

  - A new `-V' or `--version' option is available, which displays
    version information.

  - When run with invalid command-line arguments, `gnetlist' now exits
    with non-zero exit status.

* Several `gnetlist' backends have now been fixed so that it should no
  longer be necessary to set an expanded Guile stack in gEDA's config
  files.

* The `spice-sdb' backend for `gnetlist' now supports probes
  (`TESTPOINT' devices).

* The undocumented `mk_verilog_syms' program is no longer installed.
  The symbols it creates are still installed to
  `${prefix}/share/gEDA/sym/verilog'.

Notable changes in gEDA/gaf 1.6.2
=================================

 * PNG export from `gschem' will now be cropped correctly.

 * The `partlist' backends for `gnetlist' now handle hierarchical
   refdes correctly.

 * On Windows, `gschem' and `gattrib' will no longer launch with a
   command window visible.

 * `gnetlist-arg' is no longer valid in `gsch2pcb' project files.

Several other bugs were fixed, including a major crash bug in
gnetlist.

Notable changes in gEDA/gaf 1.6.1
=================================

* Added accelerator mnemonics for root menus in gschem

* Lots of updated and new language translations in libgeda, gschem, and
  gattrib.  (Courtesy of language translators and Launchpad)

* Updated the shipped documentation from the official gEDA wiki

* Fixed the following bugs:

  - 2876373: Fix rendering with zoomed out dashed lines
  - 2901183: Fix for some manpage issues
  - 2904715: Don't update page connectivity from o_place_rotate()
  - 2949232: Fix slot editing routines to not edit inherited attributes
  - Cherry picked some other bug fixes from master that should be in
    this release

Notable changes in gEDA/gaf 1.6.0
=================================

* Fixed the GtkItemEntry code inside of gattrib code so that it builds
  using gtk+ > 2.16.x.

* In gschem, rubberband pin to pin connections by adding nets.

* Cleanup of the slot handling code in libgeda.

* Fixes/updates to the MinGW port.

* Updated the shipped documentation from the online wiki.

Notable changes in gEDA/gaf 1.5.3/1.5.4
=======================================

* NOTE: gEDA/gaf 1.5.3 was released with some critical bugs, so
        it was withdrawn before it was widely distributed.

* Text rendering using native system fonts:

  - The various programs in gEDA/gaf no longer uses its own built-in
    line font.

  - Native system fonts are used for rendering, giving support for a
    wider range of symbols, and better looking schematics.

* Always use PostScript fonts in gschem's PostScript output.  The
  "output-text", "text-output" and "output-vector-threshold" config
  functions have been removed.

* Image rendering in 'gschem' uses cairo instead of GDK.

* Numerous build system changes:

  - gEDA/gaf is now distributed as a single source archive, called
    gEDA-<version>.tar.gz.

  - GTK+ 2.10 or newer and Guile 1.8 or newer are now required.

  - `intltool' is no longer required.

  - Documentation is now installed to ${docdir} (usually
    ${prefix}/share/doc/gEDA).

* The attribute edit dialog in `gschem' now has completion of most
  common attribute names.

* The multi-attribute edit dialog in `gschem' now shows unpromoted
  symbol attributes.

* Menu items in `gschem' now have icons and properly aligned key
  bindings. They also support accelerator keys.

* The `gschem2pcb' and `PCBboard' netlist backends have been removed.
  It is recommended to use `gsch2pcb' instead.

* Check for and reject non-footprint PCB files in 'gsch2pcb'.

* Removed unimplemented "File->Open" feature in 'gattrib'.

* Added --disable-gattrib command line flag to ./configure to disable the
  building of 'gattrib'.  This is useful if you are building against
  gtk+ 2.17.x which breaks 'gattrib'.

* 'gnetlist' does not recommend drc2 every time it runs.  The drc2
  backend is only useful in certain circumstances.

* Assign shortcuts "vd" and "vl" for changing between color schemes
  in 'gschem'.

* Fix problem with attached net attribute not being honored in 'gnetlist'.

* Focus the "save" button in the close confirmation dialog in 'gattrib' and
  'gschem'.

* Accept empty attributes in the src file in 'tragesym'.

* Cleaned up the slot dialog box in 'gschem'.

* Changed the grip size rendering in 'gschem' to be reasonably sized when
  zoomed in a lot.

* Introduction of a new attribute searching API in 'libgeda' and 'gschem'.

* Improvements and cleanup to the 'gnetlist' and 'gsymcheck' test suites.

* Fixed the following bugs:

  - 1758673: Combine source tarballs
  - 2058707: gschem, gattrib: Dangerous button focus in "Save changes"
             dialog at quit
  - 2430369: gschem: Deselect invisible attribs with their parent object.
  - 2449060: Graphic state left inconsistent cancelling from net mode
  - 2460301: libgeda: Make o_complex_promote_attribs() respect keep_invisible
             and libgeda: Make o_complex_copy() actually copy.
  - 2455061: Gnetlist output changed, and tests fail with recent GLib
  - 2655088: autogen.sh: Make sure to exit if autopoint fails.
  - 2823703: gnet-pcbpins.scm: Quote pins names if they contain comma
             or close parenthesis.
  - 2823755: gnetlist: Fix DEBUG builds.
  - 2836109: build-sys: Add check for groff html driver.

* Spanish translation were updated.

* Lots of code, infrastructure, and doxygen documentation cleanup and
  refactoring.

Notable changes in gEDA/gaf 1.5.2
=================================

* `gschem' now uses Cairo for all rendering.  This allows for
  everything to be rendered anti-aliased.

* `gschem' now uses a mesh grid instead of dots by default.

* Net junction cues in `gschem' are drawn smaller now.

* Copy and paste now works between different `gschem' instances (using
  the X selection).

* Recent files are no longer opened in a new `gschem' window.

* Major, *backwards-incompatible* changes to color handling in
  `libgeda' and `gschem'.

  - All colors are specified using hexadecimal `#RRGGBB' or
    `#RRGGBBAA' syntax.

  - The print and display color maps are now separate.

  - A new Scheme syntax is used to inspect and modify color maps.

  - If you wish to use a light background in `gschem', add the line:

      (load (build-path geda-rc-path "gschem-colormap-lightbg"))

    to your personal or project gschemrc file.

* Attributes of embedded objects are now shown in the right color.

* Bus pins are now supported by `gschem' and `libgeda', but are *not*
  properly supported by the netlister.  The pin type can be modified
  by selecting a pin, then right-clicking it and selecting `Edit pin
  type...'.

* All of the symbols were modified to use overbar markup tags ("like
  \_this\_") instead of separate lines.

* Log files are now saved to $HOME/.gEDA/logs rather than being
  dropped in the current directory.

Notable changes in gEDA/gaf 1.5.1
=================================

* GTK+ version 2.8.x or later is now required.

* The selection behaviour in `gschem' was changed.

  - Lines, unfilled boxes, unfilled circles, arcs, pins, nets, and
    buses must be selected by clicking on the drawn path itself.

  - Filled boxes, circles, text, and components, may be selected by
    clicking anywhere in the bounding box.

  - The default mouse click distance required to select an element was
    increased to 10 pixels.

  - Double-clicking on a net segment selects all connected net
    segments.

* The percentage step in or out while zooming the display in `gschem'
  is now configurable with the `zoom-gain' gschemrc parameter.  The
  default value is 20%.

* The size of steps when panning with the mouse wheel or with a
  trackpad in `gschem' is now adjustable with the `scrollpan-steps'
  gschemrc parameter.  The default setting scrolls in steps of 1/8 of
  a screen.

* A number of improvements were made to the `gschem' component
  selection dialog.

  - The dialog now shows a table of top-level attributes in the
    selected symbol.

  - It is now possible to expand/collapse a library by clicking
    anywhere on its row.

* Changes to fill- and line-styles in `gschem' can now be undone.

* Arcs can now be adjusted in `gschem' using an arc angle dialog.  It
  can be accessed by selecting an arc and selecting Edit->Edit.

* It is now possible to rotate objects while placing them in `gschem'.

* Support for arbitrary filled and unfilled paths, using a subset of
  the SVG path syntax.  For more information, please see the file
  format specification.
  <http://wiki.geda-project.org/geda:file_format_spec>

  - `gschem' does not yet provide a GUI for creating or editing path
    elements.  However, it does support rendering them.  They can also
    be printed.

  - Some of the symbols in the component library were updated to use
    paths.

* A Scheme evaluation prompt was added to `gschem'.  It can be
  accessed by typing `:'.

* Improved algorithm for drawing hatched fills both on screen and in
  PostScript output.

* Color selection dialogs and menus in `gschem' now show the actual
  color as well as the description.  Color names are now translatable.

* `gattrib' now prompts to save changes.

* All of the unimplemented menu items and pages in `gattrib' were
  removed.

* The `always-promote-attributes' gafrc parameter now takes a list of
  strings as an argument.  The space-delimited string syntax is
  deprecated.

* Some optimisations were made to the `gnetlist' connection traversal
  algorithm to speed up netlisting large designs.

* A new netlist backend was added to support Liquid PCB.
  <http://www.liquidpcb.org/>

* The `bom2' netlist backend now generates a `qty' column.

* Several improvements and fixes were made to the `systemc' backend.

* The `--gnetlist-arg' option to gsch2pcb can now be used to pass
  extra `gnetlist' arguments.

* `gsch2pcb' now emits files with the latest `pcb' file format.

* The `gxyrs' pick-and-place tool was added.

Notable changes in gEDA/gaf 1.5.0
=================================

* Magnetic net mode in `gschem'. Magnetic mode lets you draw nets and
  automatically connect to valid end points (such as pins and other
  nets).  The `magnetic-net-mode' gschemrc parameter can be used to
  enable/disable this feature.

* Rotating a component while moving it in `gschem' now rotates around
  the current mouse location.

* The `verilog' and `vhdl' backends now work again.

* Embedded components can now be mirrored.

* The `pads' netlist backend now uses CRLF line endings.

Older versions
==============

Release notes for older versions of gEDA/gaf are available on the gEDA
website.  <http://www.gpleda.org/news/index.html>

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