v0.10

• notify-send is now called with --category im.received (#27).
• Dropped official support for Python 3.5, 3.6, and 3.7 as they are EOL.

v0.9

• Added a new option: notify_on_all_messages_in_current_buffer. When set to on, you will receive a notification on all messages in the currently active buffer (#22).
• Added a new option: hide_messages_in_buffers_that_match. It is a comma-separated list of regex patterns for names of buffers from which you want to receive notifications without messages (#19).
• Added a new option: desktop_entry. It contains the name of the desktop entry for WeeChat. This enables notify-send to focus WeeChat upon clicking on a notification (#14).
• Changed the default value of the ignore_nicks option from '' to '-,--,-->'. This will prevent notifications for messages from nicks -, --, and -->, which is usually just noise (#23).
• Dropped support for Python 3.4 (it is EOL). When using Python 3, at least Python 3.5 is required.

v0.8

• Added a new option: notify_on_all_messages_in_buffers_that_match. It is a comma-separated list of regex patterns of buffers for which you want to receive notifications on all messages that appear in them.
• Added a new option: notify_on_messages_that_match. It is a comma-separated list of regex patterns for which you want to receive notifications for any message whose body matches the given regular expression. Contributed by @bbugyi200 in #12.
• Added a new default tag into ignore_messages_tagged_with: notify_none (see #10).
• Print an error message when notify-send fails. From a user's viewpoint, this is better than showing the complete backtrace (see #11).
• Replaced the word plugin with script in README and source files as technically, weechat-notify-send is a script, not a plugin (see #8).
• Dropped support for Python 3.3 (it is EOL). When using Python 3, require at least Python 3.4.

v0.7

• Notifications are transient by default. That is, when a notification expires
  or is dismissed, it is removed from the notification bar. To disable this
  behavior, set the plugins.var.python.notify_send.transient configuration
  option to off.
• When checking for a buffer-name match, consider >channel and #channel to
  be equal. The reason is that the
  wee_slack plugin replaces # with
  > to indicate that someone in the buffer is typing. This fixes the behavior
  of several configuration options (e.g. notify_on_all_messages_in_buffers)
  when weechat_notify_send is
  used together with wee_slack.
• Do not show notifications for some messages that were ignored in previous
  versions of the plugin. More specifically, do not show notifications for
  messages tagged with irc_part, irc_status, irc_nick_back, irc_401,
  and irc_402.
• Made notifications for ordinary messages look like highlight notifications
  when the buffer is in notify_on_all_messages_in_buffers. Previously, such
  notifications looked like private-message notifications, which was
  misleading.
• Do not show notifications for messages without a nick. A nick is required to
  form a correct notification source and message.
• Fixed displaying of notifications without a source. Previously, notify-send
  failed with the following error message: No summary specified.
• Fixed shortening of messages containing non-ASCII characters. Previously, it
  might have happen that a message was split inside of a multibyte character.
  This created an invalid message and caused notify-send to fail.

v0.6

• All messages are now intercepted, not only those tagged with irc_privmsg.
  This should make the plugin working also for networks other than IRC (e.g.
  Matrix #3).
• Added a new option: ignore_messages_tagged_with: A comma-separated list of
  message tags for which no notifications should be shown. Default:
  'irc_join,irc_quit'.
• Added a new option: notify_on_all_messages_in_buffers. It is a
  comma-separated list of buffers for which you want to receive notifications
  on all messages that appear in them. You can use either short names
  (#buffer) or full names (network.#buffer). This list is empty by default.
• Do not notify on filtered (hidden) messages by default.
• Added a new option: notify_on_filtered_messages. By turning it on, you
  can instruct the plugin to send notifications also for filtered (hidden)
  messages.
• Improved the detection of nicks from the information passed by WeeChat.
  Originally, the nick was obtained only from the prefix. However, the prefix
  is not always the nick. Now, the nick is first tried to be obtained from a
  tag of the form nick_XYZ, where XYZ is the nick that sent the message. If
  this fails, the nick is obtained from the prefix (fallback).
• Improved the removal of modes from messages prefixes. Originally, only @
  (op on IRC) and + (voice on IRC) were removed. Now, any character from the
  following list is removed from the beginning of the prefix: ~&@%+-. The
  meaning depends on the used protocol.
• Improved the detection whether a notification should be shown based on the
  authorship of the message (do not show notifications for messages from self).
• Fixed sending of notifications whose source or message starts with --.

v0.5

• Added a new option: ignore_buffers. It is a comma-separated list of buffers from which no notifications should be shown.
• Added a new option: ignore_buffers_starting_with. It is a comma-separated list of buffer prefixes from which no notifications should be shown.
• Show default values of options in their descriptions (e.g. when viewed via iset.pl).

v0.4

• Added a new option: min_notification_delay. It represents a minimal delay
  between successive notifications from the same buffer. It is used to protect
  from floods/spam. The default value is 500 milliseconds. Set it to 0 to
  disable this feature (i.e. all notifications will be shown).
• Added a new option: notify_on_highlights. It allows you to disable
  notifications on highlights. By default, notifications on highlights are
  enabled.
• Added a new option: notify_on_privmsgs. It allows you to disable
  notifications on private messages. By default, notifications on private
  messages are enabled.

v0.3.4

• Fixed occasional messing of the WeeChat screen when assertion messages are
  emitted by notify-send.

v0.3.3

• Fixed interpretation of messages containing backslashes by escaping
  them.

v0.3.2

• Fixed the obtaining of a nick from WeeChat. Previously, the nick might have
  been prefixed with a mode, e.g @ when the user was an op. Modes are now
  removed and not shown in the notifications.