Changes between 6.6.0 and 6.6.1
===============================
Module changes:
* spellcheck's pyenchant dependency is no longer required for py3.7+
  * This should alleviate a lot of installation problems due to pyenchant being
    unmaintained. If use of the spellcheck module is desired, the necessary
    libraries may be installed manually.

Changes between 6.5.3 and 6.6.0
===============================
Sopel 6.6.0 has been a long time coming, but it contains a metric ton of fixes
and enhancements. The big stuff is yet to come in Sopel 7, though; stay tuned!
(You can get some hints by browsing the GitHub milestones.)

View and contribute toward Sopel's budgetary needs by visiting the project's
new Open Collective page: https://opencollective.com/sopel

Now that Sopel 6.6.0 is released, the focus will shift from preparing the new
release to migrating the website and documentation off of Embolalia's personal
infrastructure. Once this migration is complete, Sopel's documentation will be
updated to reflect the changes/additions listed below. Questions about the new
(and old) API methods are welcome in #sopel on Freenode, of course, as always.
Thank you for bearing with this transitional period!

Importantly, a couple of broken modules have been removed in this release. For
easy reference, they and their functional replacements (available on PyPI) are
listed near the top of the "Module changes" section.

Because this is the last release planned before Sopel 7, it's important to note
some upcoming changes. They're mostly for module developers, or for bot owners
who run unmaintained third-party modules (which might need manual updating).

But first, a user-facing change.

Sopel is drifting toward a more streamlined release model, which will see most
of the core module library split out into separate packages. Moving modules to
their own packages will enable faster fixes when APIs change, and easier module
adoption by members of the community.

Further process details will appear in future changelogs as modules are moved
out of core, but the plan is to have Sopel "require" modules it used to include
for a release or two after their removal. Existing installations should thereby
have a smooth transition, as long as they get updated reasonably often.

To discuss this plan, visit: https://github.com/sopel-irc/sopel/issues/1291

And now, for the developer stuff.

There will be some attention given to how Identifier objects work in Sopel 7. In
particular, the way lowercase works appears to have been wrong for some time.
Subscribe to https://github.com/sopel-irc/sopel/issues/1389 for updates, or to
join the discussion on the best plan for addressing this.

Also in Sopel 7, the following deprecated functions in sopel.web will be removed:
get(), head(), post(), get_urllib_object()
Module authors should replace these with equivalent code using requests. If you
don't know what that is, you're in for a treat: https://pypi.org/project/requests/

Remaining sopel.web functions might also move in a future major release. See
https://github.com/sopel-irc/sopel/issues/1318 and comment your opinion if you
are a module developer. There is still plenty of time to give feedback; nothing
will happen before Sopel 8 at the earliest.

Support for multiple help examples on each module command is planned for Sopel 7
and will allow for clearer command and argument documentation. The current help
system uses a deterministic but unintuitive method to choose a single example to
output. The current plan is to make the new multi-example behavior opt-in, so
only help for modules that are explicitly updated to support it will change.
Follow this initiative at https://github.com/sopel-irc/sopel/issues/1200

Bot owners and admins might appreciate the new ignore system proposal, which
would (among other things) make "hostmask" blocks actually block hostmasks!
See https://github.com/sopel-irc/sopel/issues/1355 to participate in the design
process; this change is tentatively planned for Sopel 7 but may be pushed back.

And finally, for users who hate SQLite with a passion: Work on bringing back
alternate DB support has begun! It's unclear how soon this will be ready, but
users who want to switch off SQLite to another database engine might be able to
do so as early as Sopel 7. Follow the ups and downs of this long-awaited
journey at https://github.com/sopel-irc/sopel/pull/1446 for the time being.

Module changes:
* Added emoticons module: includes .shrug, .tableflip, .lenny, and other common kaomoji
* Added instagram module: displays information about Instagram links in chat
* Removed movie: The OMDb API went private some time ago (Q2 2017)
  * See sopel-modules.imdb on PyPI for a functional replacement
* Removed weather: Yahoo deprecated its weather service, the last known keyless weather API
  * See sopel-modules.weather on PyPI for a functional replacement that also adds the forecast
    command originally planned to launch with Sopel 6.6.0.
* admin module's .set command handles spaces properly now
* bugzilla no longer spits out an error on shutdown if its domain list is empty
* dice module's .roll/.dice/.d command gives friendlier errors, and its .choice/.choose/.ch command
  has cleaner output (will be further improved in a later release)
* etymology module updated to work with etymonline.com's changes
* ip module can now look up nicknames (user's hostname) & IPv6 addresses
* ip module switched from deprecated GeoIP database to GeoIP2
* isup module can be forced to ignore untrusted/broken HTTPS with a new command alias, .isupinsecure
* lmgtfy module gained improved output URLs (HTTPS, encoded query) and help examples
* reddit module now picks up links under all commonly used subdomains
* reload's habit of duplicating packaged modules' command output has been significantly curtailed
  * There are still some edge cases (like reloading a module with a removed function) that might
    still cause problems, but the majority of module updates should be OK now.
  * This feature will continue to improve over the next few releases.
* search module should behave better when encountering Unicode in URLs on Python 2
* search now warns .ddg/.g users of a bug affecting multiple "site:" operators in a single query
  * This is a bug in DuckDuckGo's plain-HTML SERP, and they have ignored all attempts to report it.
    Sopel's DuckDuckGo code might be rewritten to use an unaffected interface in the future.
* tld module gracefully handles missing arguments now
* translate now handles API failures gracefully
* url module can now create a short URL for convenience when fetching title
  * only URLs longer than configured minimum length
  * off by default
* url module will say an error if .title command fails
* url module's URL finder will ignore suspicious trailing punctuation, making the auto-title feature
  more reliable when links are included in sentences
* version module no longer prints "wat" to the console/log when answering CTCP VERSION requests
* wiktionary module now decodes HTML entities in its output before sending, and it should also now
  give correct results for affixes & definitions containing reference tags
* xkcd fetching by comic title should work again (switched back-end search provider)
* Many modules updated to use HTTPS in both API calls and output

Core changes:
* Added userserv option for auth_method
* Added default value of 'UTC' to default_timezone
* Added alias_nicks option
  * Lets Sopel respond to (a) nickname(s) other than the name it uses for its IRC nick
* Made handling CNAME'd TLS hostnames more forgiving
* Raw logging is no longer enabled by default
* Comparisons between Identifiers and other types were improved
* Sopel no longer sends the sticky modifier for capabilities
* Database tables are now created using "IF NOT EXISTS" to reduce error potential
* Deprecated sopel.web calls in various modules updated to use requests instead
* Intents/CTCP handling fixed
* Fixed more cases where module shutdown routines weren't running

API changes:
* New formatting methods: italic, strikethrough, monospace, hex_color, reverse (inverted video)
  * With the exception of italics, these are all "niche" formatting codes that
    have relatively limited client support, but they are included for completeness.
* sopel.db.get_uri() was returning an incorrectly formatted result, now fixed
* Fixed populating bot.channels privileges dicts on connect
* Fixed updating User objects when receiving NICK events from the server
* Documentation added/corrected in several places
* Command prefix in examples is now assumed to match the default regex pattern (currently '\.')
  * This fixes some issues with incorrect help output, but might cause new problems in modules that
    use non-standard prefixes in their command examples.
  * Sopel's maintenance team regrets not providing advance warning of this change, but the potential
    impact is limited to perhaps a few misplaced characters in help output, at most -- same as the
    bug itself, but likely with a much lower incidence.

Changes between 6.5.2 and 6.5.3
===============================
Module changes:
* tell module takes nicknames up to 30 characters long now (previously 20)
* reddit module (and Sopel, by extension) once again accepts any installed version of PRAW

Core changes:
* Specified which IPython versions pip should give Sopel depending on Python version in use
* Fixed trying to use pytest stuff in production
* Various testing tweaks

Changes between 6.5.1 and 6.5.2
===============================
Larger than the usual "patch" release because it's been so long since the last
version and a number of bugs crept in. New maintainer (dgw) says hi.

To reduce the "dependency hell" of installing things that Sopel doesn't need unless
specific modules are used, the spellcheck and ipython modules will likely be removed
from core and published separately in a future release (tentatively, Sopel 7).

Module changes:
* Added (restored) .bing command to search module, and fixed Bing results
* Updated DDG ad filtering, and converted query URLs in search module to HTTPS
* Fixed search module .suggest command using Google suggestions API
* Fixed reddit and updated PRAW version requirement
* reload module no longer tries to reload nonexistent modules when passed the name of a system package (e.g. "time" or "re")
* remind module will now give the reminder time in the correct timezone when using .at
* wikipedia module ignores File: namespace links, and output from other Sopel bots' wikipedia modules
* Fixed retrieving xkcd comics by number
* Fixed currency module (updated API URLs)
* Tweaked url module's title finder to reduce garbage from Gawker/Kinja sites
* help module now filters out duplicate commands from its command list
* Fixed wikipedia module's handling of special characters like &
* Prevent wikipedia module spewing an error if someone posts a link to an article that doesn't exist
* help module now sends the command list to ptpb.pw, as GitHub removed the anonymous Gist API
* Switched calc module to use new backend service for .py command, to reduce outages
* Added physical temperature limit to units module
* Tweaked argument handling in pronouns module

Core changes:
* Logger bug squashed
* Shutdown method handling fixed
* Added documentation in a few places
* Made finding the system SSL/TLS certificate trust store more robust
* Modules with example tests no longer need to hack around pytest running their setup() routines
* Corrected IPython dependency for ipython module (now installs with Sopel automatically)
* Widened acceptable requests version range

API changes:
* Module shutdown() methods should fire correctly now
* ListAttribute config values now return [] (empty list) when blank instead of [""] (empty string in list)
* Updated documentation for (still deprecated) sopel.web - the documentation for post() included a nonexistent kwarg 'headers'

Changes between 6.5.0 and 6.5.1
===============================
Module changes:
* A module to track users' pronouns is added
* A few bug and regression fixes

Changes between 6.4.0 and 6.5.0
===============================
Module changes:
* xkcd module can now recognize xkcd.com urls
* SSL is verified for HTTP requests when not turned off in the config
* The command list is placed in a gist, to prevent flooding
* Title finding uses a custom user agent, to prevent issues with some sites

Core changes:
* Intent handling is improved

API changes:
* A @url decorator is added to simplify URL handling

Changes between 6.3.1 and 6.4.0
===============================
Module changes:
* For some subreddits where NSFW is used to mark spoilers, an appropriate tag is shown.
* .ddg avoids giving ad results.
* .wa is fully removed; a replacement can be found on PyPI as sopel-modules.wolfram

Core changes:
* Support for authenticating with Quakenet's Q is added.
* Errors from empty PID files are fixed.
* Issues with errors not being logged to the logging channel are fixed.
* Topic tracking is improved.
* extended-join is supported properly
* Error messages being reported to the triggering channel/user can be disabled.

API changes:
* Channel priliveges are no longer checked in private messages.
* Rate limiting can now be done by channel and globally, not just per user.

Changes between 6.3.0 and 6.3.1
===============================
Module changes:
* The xkcd module is working again
* Fix an issue causing unicode errors to show for some URLs when using Python 2 (but you should really switch to 3!)

Core Changes:
* Fix a bug in QUIT message parsing which caused certain users to be flooded with PMs if their nick matched the first word of a user's QUIT message (such as "disconnected" or "ping")
* Fix a rare python 3 incompatibility bug when quitting due to too many core errors.
* We no longer show a warning when detecting a non-unicode system locale if you're still using Python 2

Changes between 6.2.0 and 6.3.0
===============================
Module changes:
* Many modules ported to use requests package for stability and security.
* Weather location lookup is fixed.
* Confusing and unnecessary commands like .op were removed.
* Splitting of options in .choice is now more intuitive.
* Some edge cases in reddit post information were fixed.

Core changes:
* A check is added to warn about an obscure environment issue that can cause strange errors.
* Regex characters in the bot's nick no longer cause issues when a rule has the nickname added.
* Rate limiting is tweaked slightly, which should reduce the severity of the .commands flood bug until a proper solution is found.

API changes:
* The current topic of a channel is now available as the Channel object's topic attribute.
* sopel.web has been reworked as a wrapper around requests; it remains deprecated.

Changes between 6.1.1 and 6.2.0
===============================
Module changes:
* An error in excluding URLs from title display is fixed
* Case sensitivity issues in currency and dice commands are fixed
* Guards to require channel or private message are added to a number of commands, to avoid confusing errors
* A calculation bug in the countdown command is fixed.
* Misc minor bugfixes and improvements

Core changes:
* An occasional error with SSL connections on Python 3 is fixed
* On servers which support IRCv3 account extensions, the services account name can be used to authenticate the owner
* Numerous additional IRCv3 features are supported

API changes:
* bot.privileges is now deprecated in favor of bot.channels
* bot.channels contains more information about the channels the bot is in
* bot.users is now available with information about the users Sopel is aware of
* sopel.web is now deprecated in favor of the third-party `requests` library
* trigger.time is added with the current time, or server-time if the server supports it
* sopel.tools.events is now available as an enum of IRC numeric replies

Changes between 6.1.0 and 6.1.1
===============================
If you are updating from a pre-6.0 version (i.e. Willie), there are backwards-
incompatible changes which you should be aware of. See
http://willie.dftba.net/willie_6.html for more information.

Core changes:
* A regression which caused the config wizard to be unusable is fixed.

Changes between 6.0.0 and 6.1.0
===============================
If you are updating from a pre-6.0 version (i.e. Willie), there are backwards-
incompatible changes which you should be aware of. See
http://willie.dftba.net/willie_6.html for more information.

Module changes:
* A regression which prevented the URL safety detection from working is fixed.
* Issues with some special characters in DuckDuckGo searches are fixed
* lxml is no longer required by any modules, greatly simplifying the install process
* Misc minor bugfixes and improvements

Core changes:
* A regression which disabled blocking functionality is fixed
* Examples are no longer mangled by the .help command, and show the correct prefix
* The listing from .commands is now separated by module
* Issues with reloading folder modules are fixed

API changes:
* ListAttribute configs can be set to a list or set, with the same effect
* The configure method of validated config attributes now takes the parent config and section name

Changes between 5.5.1 and 6.0.0
===============================
This release contains backwards-incompatible changes. See
http://willie.dftba.net/willie_6.html for more information.

This is the first release in which the bot will have a new name. Current tentative name is Sopel.

Module changes:
* chanlogs, rss, github, and radio modules are removed
* Default in admin module is now to join on invite from anyone; the old default of only joining on invite from admins can be configured
* Wikipedia module's per-channel default language configuration is deprecated; a database-backed option will be added in a future version
* .seen replies on action messages now display action messages differently
* .kick no longer truncates the message, and .kickban works properly

Core changes:
* Deprecated login configs have been removed, in favor of the new auth_* values
* Module reloading has been redone to enable modules to be installed from PyPI
* IRCv3 capability negotiation is updated for v3.2

API changes:
* Configuration has been entirely reworked. Old wizard functions and the get_list function are removed, but most other uses of the config should continue to work.
* The reorganization of willie.tools introduced in 5.3.0 is finalized; the old import locations no longer work.
* bot.msg is deprecated in favor of bot.say, which can now be used in un-triggered contexts with an additional recipient argument

Changes between 5.5.0 and 5.5.1
===============================
This release continues preparations for Willie 6. See https://sopel.chat/willie_6.html
Module changes (for users):
* The URL safety module correctly checks URLs
* The URL for the service used for .py and .wa is updated

Changes between 5.4.1 and 5.5.0
===============================
This release starts preparations for Willie 6. See https://sopel.chat/willie_6.html
API changes (for developers):
* The ability to import from the sopel package, rather than willie, is added to enable forward compatibility with the rename in 6.0.
* A version_info tuple, simmilar to Python's own sys.version_info, is added
* An error when setting a validated config attribute to None is fixed

Changes between 5.4.0 and 5.4.1
===============================
This release starts preparations for Willie 6. See http://willie.dftba.net/willie_6.html
Core changes (for users):
* Regression which prevented SSL verification from being disabled is fixed

Changes between 5.3.0 and 5.4.0
===============================
This release starts preparations for Willie 6. See http://willie.dftba.net/willie_6.html
Module changes (for users):
* Dropping the lowest results from .dice rolls works properly
* .blocks listing is now on one line
* HTML entities in reddit post titles are now displayed correctly

Core changes (for users):
* DB nick group merging now works properly
* A few combinations of authentication configuration that were broken are fixed

API changes (for developers):
* The core config section now uses a 6.0-style config definition. Deprecated attributes will give a warning.
* Accessing core config values directly from the config object itself (rather than config.core) now appropriately prints a warning
* @require_chanmsg now works properly

Changes between 5.2.0 and 5.3.0
===============================
Module changes (for users):
* The YouTube module is removed due to breakage of its API by Google
* Fixes for unicode in channel logging
* .py hits an updated service running Python 2.7, rather than 2.5
* Multiple new features are added in the reddit module
* Wind direction arrows in weather now point the right way

API changes (for developers):
* Time and calculation tools are split out into multiple modules. The moved things will also be available in tools itself until 6.0, whereupon they will only be available in their new locations.
* Functions and classes used internally for scheduling jobs are moved. They are still available in their old location, but are no longer documented and will not be considered part of the public API in 6.0.


Changes between 5.1.1 and 5.2.0
===============================
Module changes (for users):
* An exception that failed the chanlogs module from loading is fixed
* Meetbot meeting subjects no longer fail with unicode

Core changes (for users):
* The various ways of authenticating the bot are now configured using the same set of attributes. The old settings will be used as fallback until 6.0.0

API changes (for developers):
* Privilege decorators no longer cause an error when no message is given
* A new @intent decorator is added as a shortcut for triggering on a message with an intent

Changes between 5.0.0 and 5.1.1
===============================
Module changes (for users):
* Fixed a regression that caused getting weather for a nick to fail
* Bugs related to channel log filenames are fixed
* Channel logs can now use the bot's preferred time zone
* Getter and setter methods for timezone and format are more consistently named
* .seen persists across bot restarts
* .seen no longer shows message or channel unless used within the same channel
* Special characters in Wikipedia URLs are handled correctly

Core changes (for users):
* help_prefix can now be given in [core] to change the command prefix used in help

API changes (for developers):
* The Trigger object is now immutable, as expected
* New decorators for checking privileges on callables are added

Changes between 4.6.2 and 5.0.0
===============================
This release contains backwards-incompatible changes. See
http://willie.dftba.net/willie_5.html for more information.

Module changes (for users):
* YouTube no longer shows bizarre lengths when the bot is running under Python 3
* When Wikipedia links are posted, a snippet of the article is shown

Core changes (for users):
* WillieDB is entirely rewritten, meaning migration will be needed to access old data
* Logging output to the debug channel is improved
* The name of the NickServ user can be configured with nickserv_name in [core]
* SSL is disabled on Python 2.7 when backports.ssl_match_hostname is not installed

API changes (for developers):
* Deprecated WillieDB functions are removed
* CTCP actions are stripped prior to matching, and added to the 'intent' key of trigger.tags
* Deprecated Trigger functions are removed
* bot.debug is removed, in favor of standard Python logging
* tools.Nick is removed, in favor of the tools.Identifier introduced in 4.6.0

Changes between 4.6.1 and 4.6.2
===============================
This release starts preparations for Willie 5. See http://willie.dftba.net/willie_5.html
for more information.

Module changes (for users):
* Due to API deprecation and instability, .g now uses DuckDuckGo instead of Google

Core changes (for users):
* Fix remaining regression in db update function

Changes between 4.6.0 and 4.6.1
===============================
This release starts preparations for Willie 5. See http://willie.dftba.net/willie_5.html
for more information.

Module changes (for users):
* Fix regression in table creations and erroneously changed column names

Core changes (for users):
* Fix regression in db update function

API changes (for developers):
* Correctly print out deprecation warnings

Changes between 4.5.1 and 4.6.0
===============================
This release starts preparations for Willie 5. See http://willie.dftba.net/willie_5.html
for more information.

Module Changes (for users):
* The ^ operator in .calc is now equivalent to **
* .dice, .tr, and .addtrace give meaningful errors when no argument is given
* A number of database issues were fixed (more will be fixed in Willie 5)
* A number of Python 3-related issues were fixed.
* Malicious URLs are now detected with VirusTotal and malwaredomains
* .weather no longer shows pressure

Core changes (for users):
* The config wizard no longer configures the database, instead automatically creating a sqlite db
* MySQL and Postgres databases are deprecated; only sqlite will be supported in Willie 5
* Logging channel and level can be configured with logging_channel and logging_level in the config
* A --version switch was added to the willie command, to show the version in use
* Corrupt PID files will no longer prevent the bot from starting
* Non-ASCII values no longer crash the config wizard

API changes (for developers):
* Numerous functions were added to the db to ease the transition to Willie 5
* tools.Nick has been renamed tools.Identifier. Nick will be removed in Willie 5
* willie.web functions now specify a meaningful default user agent
* web.post now supports dicts as the payload, and can optionally return headers
* config.get was added as an alias to config.parser.get
* Callables can now handle more than one event by stacking decorators

Changes between 4.5.0 and 4.5.1
===============================
Module Changes (for users):
* Version checking module no longer causes an error at startup
* URL handling modules no longer repeat themselves after being reloaded
* .isup now adds a .com TLD if none is used
* IPython integration now works with older versions of IPython

Changes between 4.4.1 and 4.5.0
===============================
Module Changes (for users):
* Willie will now alert the owner at startup, and every 24 hours, when a new version is available
* .calc will now time out on excessively long calculations, and is less likely to error out
* .help now works properly for command aliases
* .help will now output multi-line help in multiple messages, rather than all at once
* A new .uptime command tells how long the bot has been running
* .length can now handle astronomical units
* Absolute vote counts are no longer shown in reddit output
* Using .setlocation without a location will no longer set your location to Italy
* Time units for .in are now case-insensitive
* .duck no longer gives a long, unrelated URL

Core changes (for users):
* Scheduled tasks now work properly under Python 3
* Willie no longer accepts partial matches for admin status

API Changes (for developers):
* Setting attributes on the bot object now works as expected
* The status code is now returned from web.get as `_http_status` in the headers
* web.get now attempts to decode based on headers, rather than assuming utf-8
* web.iri_to_uri is now available to decode internationalized domain names
* A willie.formatting module is now available to simplify IRC bold, underline and color formatting

Changes between 4.4.0 and 4.4.1
===============================
Module Changes (for users):
* RSS no longer checks for malformed XML
* Starting RSS manually after bot restart is no longer needed
* Youtube video search properly handles spaces
* The .at command defaults to UTC if user's timezone is not set


Core changes (for users):
* Ping timeout handling is working again
* bind_host configuration option is working again



Changes between 4.3.0 and 4.4.0
===============================
Module Changes (for users):
* .cur behaves better when bad arguments are given
* Fixed numerous unicode errors
* Added a command to open an IPython console within the module context
* Added mass units and millimeters to .cur
* GitHub pull requests now get extended URL info
* .weather now displays wind in m/s instead of kts
* A security issue involving improperly named channel logs was fixed
* Misc bugfixed

Core changes (for users):
* Channel joins at bot startup can be rate limited with the `throttle_joins` option in the [core] config section to work around server limits
* Added the ability for SASL login where the nickname and username are different
* Improved loop protection and rate limiting
* Fixed multiple Python 3 errors
* Enable logging the bot in to Authserv at startup
* Added support for Postgres as the database backend
* SSL cert location detection now works on Debian-based systems
* Misc bugfixes

API Changes (for developers):
* Unicode in command decorators now works properly
* `web.get` now decodes the result from UTF-8, with a `dont_decode` argument to disable



Changes between 4.2.0 and 4.3.0
===============================
Module Changes (for users):
* A new channel logging module is added
* Misc bugfixes, especially when running with Python 3

Core changes (for users):
* Fixed a regression that caused numerous errors in willie.web
* Misc bugfixes

API Changes (for developers):
* Nick instances now have an `is_nick` attribute, which is True when the value is a valid nickname (as opposed to a channel)

Changes between 4.1.0 and 4.2.0
===============================
Module Changes (for users):
* A new .cur command can convert a number of currencies, including Bitcoin
* .c can now understand a comma used as a radix point (rather than a period)
* .w can now look in the Wikipedia for a specified (or configurable default) language
* Timezones are now more user-friendly, and used more consistently across modules
* Misc bugfixes

Core Changes (for users):
* willie.web now verifies HTTPS connections properly
* The SQLite database file respects use of ~ in the configured filename
* Willie can now run in Python 3
* Willie now depends on python-backports.ssl_match_hostname (see README.rst for installation instructions)
* Misc bugfixes

API Changes (for developers):
* trigger.is_privmsg is added for an easy way to see if a trigger was created in a private or channel message
* get_timezone and format_time are added to tools to make displaying time according to user/channel format easier
* Added bot.notice and an optinal notice parameter for bot.reply for easier sending of IRC NOTICE messages


Changes between 4.0.1 and 4.1.0
===============================
Module Changes (for users):
* Admin-only .set command can now set non-existent config values
* The meetbot .endmeeting command now works properly
* Significant improvements made to RSS module
  * The database structure for storing RSS feeds has been modified. The module will attempt to migrate old data.
  * Command syntax has changed in multiple ways
  * .rss help is now available with more detailed information on usage.
  * Module is overall better-behaved and less buggy
* Traceback can now be attached to a GitHub issue from Willie's logs
* GitHub module no longer puts "IRC" tag on issues it creates
* A .listactions command is added to allow actions to be listed before the end of a meeting
* Dice now limits itself to 1000 dice, and output is cleaned up
* Willie now joins channels when invited
* Reddit module no longer gives an error if the submitter's account has been deleted
* A new .comments feature allows optional comments on meetings, e.g. from those muted in the channel
* .xkcd is more robust, and can now access the nth-latest comic
* calc module now uses an internal calculator, rather than the discontinued iGoogle calculator


Core Changes (for users):
* Memory lock and unlock no longer cause errors
* Debugging target no longer needs to be a channel
* Whitespace can now be used in the command prefix
* Line numbers are given when modules fail to load
* Error messages are more consistent across core and modules
* Willie now retries joining channels if it fails initially
* sqlite is now the default and recommended database type
  * MySQL remains supported; support may be dropped in a later version
  * MySQLdb is no longer listed as a recommended dependency
* IRCv3 is now largely supported
  * Willie can now authenticate with SASL


API Changes (for developers):
* Modules can now provide a shutdown() function to clean up when the bot is quitting or the module is reloading
* web.get and web.post can be told to limit how much they read from a URL, to prevent malicious use
* A new @unblockable decorator allows callables to be run even when triggered by otherwise blocked users
* Willie can now connect over IPv6
* If the channel given to bot.join contains a space, the part after the space will be used as the password
* IRCv3 is now largely supported
  * Modules can now request capabilities from the server.
  * Message tags, if enabled, can be read from trigger.tags

Changes between 4.0.0 and 4.0.1
===============================
Core Changes (for users):
* Setup script once again works properly
* Message splitting now works properly
* Bug fixes in handling of nick and hostmask blocks

Changes between 3.2.0 and 4.0.0
===============================
Module Changes (for users):
* The following modules have been moved to the willie-extras repository:
  * ai
  * bucket
  * fuckingweather
  * nws
  * roulette
  * twit
  * slap
  * oblique
* The information of the last URL seen in a channel can now be replayed with .title
* The YouTube module was reworked to use the YouTube JSON api
* The IP module is no independent of 3rd party services, and requires a local copy of the (free) GeoLite database. If such database is not installed, Willie will download it automatically.
* .commands now gives better output (no more truncated output due to message length limit)
* Added a unit conversion module
* Better handling for non-unicode page titles in the URL titler
* Removed bing support from search
* Various minor improvements and bugfixes across all modules


Core Changes (for users):
* Module discovery was reworked. Willie will now try to load additional modules from ~/.willie/modules by default, if installed
* The home directory, usually ~/.willie, can now be configured by adding homedir under [core]
* The location of pid files can now be configured by adding pid_dir under [core]
* Willie can now be run as a systemd service
* Case sensitivity in nick blocking is fixed
* Better handling of ping timeouts (connection problems)
* Major code cleanup

API Changes (for developers):
* Improved Unicode UTF-8 support across all codepaths.
* Triggers, and the appropriate attributes thereof, are now unicode objects.
* Decorators were introduced for setting attributes on callables, available in willie.module
* the NOLIMIT return value was moved from the Willie class to willie.module
* Callables with the same name in different modules no longer override each other
* willie.channels is now properly maintained
* trigger.isvoice can now be used to determine if a user has voice privileges
* Added the max_messages parameter for willie.msg() and willie.say(). See documentation for details.
* Added interval callable support (see documentation for details).
* Numerous minor features, and stability and usability fixes

Changes between 3.1.2 and 3.2.0
===============================
* tools.Nick class added for RFC-compliant nickname comparison and storage
* Returning willie.NOLIMIT from a callable ignores the rate limit for that call
* get_list() added to ConfigSection. Will reliably return a list from a config attribute.
* A number of bugs regarding admin and operator lists were fixed
* Unusual mode changes no longer cause errors
* Times shown by .t, .in, etc. all now use formats set by .settimeformat
* sed feature can use backslashed slashes in substitutions
* Weather module was rewritten, and now uses Yahoo! Weather
* Numerous stability and usability fixes
