Fedora infrastructure depends on python-bugzilla in various ways:

http://lists.fedorahosted.org/pipermail/python-bugzilla/2012-June/000001.html

Red Hat bugzilla originally had a totally custom API. Much of that is

being dropped in 2013, API conversions outlined here:

https://bugzilla.redhat.com/show_bug.cgi?id=822007

Externally facing RH bugzilla instance that doesn't send email and is

refreshed periodically. This is what is used in the functional test suite:

http://partner-bugzilla.redhat.com

Some trackers in the wild to use for API testing:

bugzilla.redhat.com

bugzilla.mozilla.org

bugzilla.kernel.org

bugzilla.gnome.org

bugs.freedesktop.org

bugzilla.novell.com

bugzilla.zimbra.com

bugzilla.samba.org

bugs.gentoo.org

Upstream timeline

=================

Here's a timeline of the evolution of the upstream bugzilla XMLRPC API:

Bugzilla 2.*:

No XMLRPC API that I can tell

Bugzilla 3.0:

http://www.bugzilla.org/docs/3.0/html/api/index.html

Bug.legal_values

Bug.get_bugs:

returns: id, alias, summary, creation_time, last_change_time

Bug.create

Bugzilla.version

Bugzilla.timezone

Product.get_selectable_products

Product.get_enterable_products

Product.get_accessible_products

Product.get_products

User.login

User.logout

User.offer_account_by_email

User.create

Bugzilla 3.2:

http://www.bugzilla.org/docs/3.2/en/html/api/

Bug: RENAME: get_bugs->get, get_bugs should still work

Bug.add_comment

Bugzilla.extensions

Product: RENAME: get_products->get, get_products should still work

Bugzilla 3.4:

http://www.bugzilla.org/docs/3.4/en/html/api/

Bug.comments

Bug.history

Bug.search

Bug.update_see_also

Bugzilla.time

Bugzilla: DEPRECATED: timezone, use time instead

User.get

Util.filter_fields

Util.validate

Bugzilla 3.6:

http://www.bugzilla.org/docs/3.6/en/html/api/

Bug.attachments

Bug.fields

Bug: DEPRECATED: legal_values

Bugzilla: timezone now always returns UTC+0000

Bugzilla 4.0:

http://www.bugzilla.org/docs/4.0/en/html/api/

Bug.add_attachment

Bug.update

Util.filter_wants

Bugzilla 4.2:

http://www.bugzilla.org/docs/4.2/en/html/api/

Group.create

Product.create

Bugzilla 4.4:

http://www.bugzilla.org/docs/4.4/en/html/api/

Bug.update_tags

Bugzilla.parameters

Bugzilla.last_audit_time

Classification.get

Group.update

Product.update

User.update

Util.translate

Util.params_to_objects

Bugzilla 5.0: (July 2015)

https://bugzilla.readthedocs.io/en/5.0/api/index.html

Bug.update_attachment

Bug.search/update_comment_tags

Bug.search:

search() now supports --from-url style, like rhbz before it

search() now supports quicksearch

Bug.update:

update() alias is now a hash of add/remove/set, but has back compat

update() can take 'flags' config now

Component (new, or newly documented?)

Component.create

User.valid_login

Bugzilla latest/tip:

https://bugzilla.readthedocs.io/en/latest/api/index.html

Redhat Bugzilla: 4.4 based with extensions. Bits on top of 4.4

https://bugzilla.redhat.com/docs/en/html/api/

Bug.search has --from-url extension

Bug.update has more hashing support

extra_fields for fetching comments, attachments, etc at Bug.get time

ExternalBugs extension: https://bugzilla.redhat.com/docs/en/html/api/extensions/ExternalBugs/lib/WebService.html

Fedora infrastructure python-bugzilla consumers:

https://infrastructure.fedoraproject.org/cgit/ansible.git/tree/roles/distgit/pagure/templates/pagure-sync-bugzilla.py.j2

https://github.com/fedora-infra/bodhi/blob/develop/bodhi/server/bugs.py

https://github.com/fedora-infra/fas/blob/develop/tools/export-bugzilla.py