## Incompatibility list

We assume that the name of your executable file is `w3mmee`.

### Incompatibilities against p23-3 or prior

1. User command ``SELECT'' is abolished. Please use ``SELECT_MENU'' instead. Thus ``USE_MENU'' is not configurable option (always defined).
2. In default keymaps (both lynx like one and w3m original one), ``C-i'' (``TAB'') and ``ESC C-i'' (``ESC TAB'') are bound to ``NEXT_FRAME'' (user command to move to the next frame) and ``PREV_FRAME'' (user command to move to the previous frame), respectively.
3. (This is actually a compatibility.) In default keymaps (both lynx like one and w3m original one), ``RELOAD'' is replaced with ``RELOAD_VIEW''.

### Incompatibilities against p23-1 or prior

1. Backend mode is abolished.

### Incompatibilities against p22 or prior

1. Width of each character on terminal is assumed 0, 1, or 2.
2. When HTTP response code is 301 or 302, w3mmee keeps HTTP method.

### Incompatibilities against p21 or prior

1. Inline images are preloaded only when configuration option ``preload_image'' is set to true value.
2. Meaning of onfiguration option ``concurrent'' has changed. I really suggest not to specify this option in your configuration file.

### Incompatibilities against p20 or prior

1. Configuration options ``tty_accept_character'' and ``tty_reject_character'' are integrated into ``tty_character_conversion''. Configuration options ``tty_accept_character'', ``tty_reject_character'', and ``tty_ucs_ready'' are abolished.
2. Configuration option ``mailcap'' now requires comma-separated alternating list of the form

   > <boolean value to specify posibility that `w3mmee` is specified in the file>, <file name>, and so on,

   instead of simple list of file names.

### Incompatibilities against p19 or prior

1. Default value of configuration option `concurrent` is now 1.
2. If you are using wheel mouse on XTerm or RXVT, you need to add the lines `

       MOUSE-CLICK-4 DOWN 5
       MOUSE-DCLICK-4 DOWN 5
       MOUSE-CLICK-5 UP 5
       MOUSE-DCLICK-5 UP 5

   ` to `$HOME/.w3mmee/keymap`.
3. Values of `User-Agent:`, `Accept-Charset:`, and `Accept-Language:` are set with configuration option `request_header`, e.g.

       request_header User-Agent: ...
       request_header Accept-Charset: ...
       request_header Accept-Language: ...

   Individual options are all abolished.