Version 0.3.2
~~~~~~~~~~~~~
Released: 2014-11-04

New Features:
 - Add --veto-ignore to appstream-builder (Richard Hughes)
 - Add BLUR and SHARPEN values for AsImageSaveFlags (Richard Hughes)
 - Add a simple 'search' command to appstream-util (Richard Hughes)
 - Add as_app_set_origin() (Richard Hughes)

Bugfixes:
 - Add some more valid metadata licenses (Richard Hughes)
 - Do not composite an app with its duplicate (Richard Hughes)
 - Do not create a hardlink when the target does not exist (Richard Hughes)
 - Do not generate metadata with an icon prefix (Richard Hughes)
 - Fix FTBFS on GNU/Hurd (Matthias Klumpp)
 - Fix extraction of hardlinks (Richard Hughes)
 - Obsolete the appdata-tools package (Richard Hughes)
 - Save the screenshots as soon as possible (Richard Hughes)
 - Show the kudo stats on the status page (Richard Hughes)
 - Support HiDPI YAML icons (Richard Hughes)
 - Support getting the origin from .yml files (Richard Hughes)

Version 0.3.1
~~~~~~~~~~~~~
Released: 2014-10-21

Notes:
 - This branch is still unstable and should not be used in stable distributions.
 - This release allows appstream-builer to parse Alpm packages for Arch Linux.
 - HiDPI support is now working well for icons and screenshots.

New Features:
 - Add a kudo for a HiDPI icon (Richard Hughes)
 - Add an --enable-hidpi argument to appstream-builder (Richard Hughes)
 - Add AS_APP_VALIDATE_FLAG_ALL_APPS (Richard Hughes)
 - Add asb_app_set_hidpi_enabled() (Richard Hughes)
 - Add asb_context_get_min_icon_size() (Richard Hughes)
 - Add asb_context_set_embedded_icons() (Richard Hughes)
 - Add AsIcon as a new abstract icon object (Richard Hughes)
 - Add as_icon_convert_to_kind() (Richard Hughes)
 - Add AS_ICON_KIND_EMBEDDED and AS_ICON_KIND_LOCAL (Richard Hughes)
 - Add as_node_add_attribute_as_int() (Richard Hughes)
 - Add as_screenshot_set_priority() (Richard Hughes)
 - Add as_store_convert_icons() (Richard Hughes)
 - Add as_utils_find_icon_filename_full() for HiDPI support (Richard Hughes)
 - Add as_utils_get_string_overlap() (Richard Hughes)
 - Alpm backend for appstream-builder (Fabien Bourigault)
 - Support filtering by metadata in status-csv (Richard Hughes)

Bugfixes:
 - Add more applications to the blacklist (Richard Hughes)
 - Allow application with NoDisplay=true and an AppData file (Richard Hughes)
 - Allow AppStream files to be upgraded using appstream-util (Richard Hughes)
 - Correctly write symlinks when extracting packages (Richard Hughes)
 - Do not allow applications to extend themselves (Richard Hughes)
 - Do not crash when doing as_tag_from_string(NULL) (Richard Hughes)
 - Do not leak applications when building if more than one plugin returns results (Richard Hughes)
 - Do not subsume vetoed fonts into the parent component (Richard Hughes)
 - Do not write provides with an unknown kind (Richard Hughes)
 - Flush the package log again after the metadata write (Richard Hughes)
 - Ignore translation for non-translatable tags (Richard Hughes)
 - Include the width and height in the <icon> tag (Richard Hughes)
 - Install AppStream files with correct permissions (Richard Hughes)
 - Log when applications are automatically composited (Richard Hughes)
 - Manually search for HiDPI icons if the application only has one listed icon (Richard Hughes)
 - Monitor the XML and icons path for changes (Richard Hughes)
 - Never allow more than one default screenshot (Richard Hughes)
 - Never return a smaller HiDPI icon than a LoDPI icon (Richard Hughes)
 - Only detect missing data after the application have been merged (Richard Hughes)
 - Only guess a project as GNOME if it uses the GNOME bugzilla (Richard Hughes)
 - Only process fonts with valid metainfo files (Richard Hughes)
 - Relax validation requirements for font metainfo files (Richard Hughes)
 - Respect AS_NODE_FROM_XML_FLAG_LITERAL_TEXT when dealing with comments (Richard Hughes)
 - Sort the screenshots with a priority value (Richard Hughes)
 - Support multiple XML comments per tag (Richard Hughes)
 - Support upgrading more than one AppData file at a time (Richard Hughes)
 - When validating AppStream files also validate the application objects (Richard Hughes)
 - Write the application XML after all the vetos have been added (Richard Hughes)

Version 0.3.0
~~~~~~~~~~~~~
Released: 2014-09-01

Notes:
 - This release breaks API and bumps the soname. See docs/PORTING.txt for more
   details about what was changed.

New Features:
 - Add a new kudo for high contrast icons (Richard Hughes)
 - Add as_app_add_veto() (Richard Hughes)
 - Add AS_APP_PARSE_FLAG_ALLOW_VETO (Richard Hughes)
 - Add asb_utils_ensure_exists() (Richard Hughes)
 - Add a self test framework for libappstream-builder (Richard Hughes)
 - Add as_store_add_metadata_index() (Richard Hughes)
 - Add AS_STORE_LOAD_FLAG_ALLOW_VETO (Richard Hughes)
 - Add as_store_remove_all() (Richard Hughes)
 - Add as_store_remove_app_by_id() (Richard Hughes)
 - Add as_store_set_builder_id() (Richard Hughes)
 - Add as_utils_find_icon_filename() (Richard Hughes)
 - Add as_utils_is_spdx_license() (Richard Hughes)
 - Add as_utils_spdx_license_detokenize() (Richard Hughes)
 - Add check-root to appstream-util (Richard Hughes)
 - Add some validation rules for metainfo files (Richard Hughes)
 - Allow desktop->addon demotion with an AppData file (Richard Hughes)
 - Allow filtering other kinds of components in status-csv (Richard Hughes)
 - Allow translated keywords (Richard Hughes)
 - Rename as_app_get_id_full() to as_app_get_id() (Richard Hughes)
 - Rename as_app_get_id() to as_app_get_id_filename() (Richard Hughes)

Bugfixes:
 - Add a veto if a .desktop file has NoDisplay=true (Richard Hughes)
 - Add dummy failed applications (Richard Hughes)
 - Add more things to the blacklist that are not applications (Richard Hughes)
 - A keyword search match is better than the project name (Richard Hughes)
 - Allow different source roots to define addons (Richard Hughes)
 - Check the locale more carefully (Richard Hughes)
 - Conform to the actual SPDX 2.0 license expression syntax (Richard Hughes)
 - Do not require sentence case when validating with relaxed settings (Richard Hughes)
 - Do not try to download screenshots when run with --nonet (Richard Hughes)
 - Do not write <pkgname> into the ignore metadata (Richard Hughes)
 - Don't add localized keywords that already exist in C (Richard Hughes)
 - Ignore AppData screenshots with xml:lang attributes (Richard Hughes)
 - Link client/appstream-util against gdk-pixbuf (William Hua)
 - Make validate,install,dump and convert to accept a *.yml (Igor Gnatenko)
 - Metadata licenses like 'CC0 and CC-BY-3.0' are content licenses (Richard Hughes)
 - Never add duplicate <extends> tags (Richard Hughes)
 - Never add empty keywords (Richard Hughes)
 - Only get the package data when required (Richard Hughes)
 - Rework as_utils_spdx_license_tokenize() to be more efficient (Richard Hughes)
 - Store vetos in the XML itself (Richard Hughes)
 - Support keywords separated by comma (Richard Hughes)
 - Turn of sig checking for rpm packages (Richard Hughes)
 - Update the SPDX license list to v1.20 (Richard Hughes)
 - Use libyaml to read DEP-11 metadata (Richard Hughes)

Version 0.2.4
~~~~~~~~~~~~~
Released: 2014-08-05

New Features:
 - Add AS_PROVIDE_KIND_DBUS_SYSTEM (Richard Hughes)
 - Add an 'install-origin' command to appstream-util (Richard Hughes)
 - Add an installed tests to validate appdata (Matthias Clasen)
 - Add as_store_set_destdir() so we can use a different root (Richard Hughes)
 - Add as_store_validate() (Richard Hughes)
 - Add asb_app_set_veto_description() (Richard Hughes)
 - Add support for <source_pkgname> which will be in AppStream 0.8 (Richard Hughes)
 - Add the <dbus> provide for applications automatically (Richard Hughes)

Bugfixes:
 - Add a plugin to detect new-style 'gtk/menus.ui' AppMenu support (Richard Hughes)
 - Avoid using rsync's -a parameter (Kalev Lember)
 - Detect any addons with missing parents (Richard Hughes)
 - Do not load applications with NoDisplay=true when loading local (Richard Hughes)
 - Do not pad the compressed AppStream metadata with NUL bytes (Richard Hughes)
 - Do not treat app-install metadata as installed (Richard Hughes)
 - Markup errors should not be fatal when assembling a store (Richard Hughes)
 - Only add registered projects and categories to the metadata (Richard Hughes)
 - Only link to apps.fedoraproject.org when processing Fedora metadata (Richard Hughes)
 - Show the time remaining when building metadata (Richard Hughes)
 - Show what application addons extend in status.html (Richard Hughes)
 - Validate for a sentence case start in <p>, <li> and <name> tags (Richard Hughes)

Version 0.2.3
~~~~~~~~~~~~~
Released: 2014-07-17

New Features:
 - Add some simple filtering in the status.html page (Richard Hughes)
 - Record if distro metadata and screenshots are being used (Richard Hughes)
 - Show the builder progress in a ncurses-style panel (Richard Hughes)
 - Support pre-decompressed RPMs (Richard Hughes)

Bugfixes:
 - Add oxygen-icon-theme when an application depends on kde-runtime (Richard Hughes)
 - Be more careful with untrusted XML data (Richard Hughes)
 - Do not allow duplicates to be added when using as_app_add_kudo_kind() (Richard Hughes)
 - Do not fail to build packages with invalid KDE service files (Richard Hughes)
 - Do not warn if the AppData file duplicates the .desktop value (Richard Hughes)
 - Show any package duplicates when generating metadata (Richard Hughes)
 - Show apps with missing icons in the failed metadata (Richard Hughes)

Version 0.2.2
~~~~~~~~~~~~~
Released: 2014-07-11

New Features:
 - Add as_app_get_source_file() to return the file that created the AsApp (Richard Hughes)
 - Add as_app_set_state() (Richard Hughes)
 - Add as_app_set_trust_flags() (Richard Hughes)
 - Add as_app_source_kind_to_string() (Richard Hughes)
 - Add AS_APP_SUBSUME_FLAG_PARTIAL (Richard Hughes)
 - Add a script to download the Fedora package cache (Richard Hughes)
 - Add as_image_get_alpha_flags() (Richard Hughes)
 - Add as_screenshot_get_image() (Richard Hughes)
 - Add AS_STORE_ADD_FLAG_PREFER_LOCAL to allow the client to prefer local files (Richard Hughes)
 - Add as_store_load_path() (Richard Hughes)
 - Add as_store_set_add_flags() (Richard Hughes)
 - Add a 'status-csv' command to appstream-util (Richard Hughes)
 - Add as_utils_is_blacklisted_id() (Richard Hughes)
 - Add --screenshot-dir to appstream-builder (Richard Hughes)
 - Add some useful image size constants (Richard Hughes)
 - Add support for <kudo> introduced in AppStream 0.8 (Richard Hughes)
 - Add two new builder plugins to add kudos on KDE applications (Richard Hughes)
 - Allow AsStore to load directories of AppData and desktop files (Richard Hughes)
 - Remove asb_context_set_extra_checks() (Richard Hughes)
 - Remove as_util_get_possible_kudos() as it's now unused (Richard Hughes)
 - Sharpen resized screenshots after resizing with a cubic interpolation (Richard Hughes)

Bugfixes:
 - Allow calling as_image_set_pixbuf() with a NULL pixbuf (Richard Hughes)
 - Allow install/uninstall xml.gz (Igor Gnatenko)
 - Allow old applications in the metadata if they have AppData (Richard Hughes)
 - Allow per-distro AppData files to be used when upstream supplies a broken one (Richard Hughes)
 - Allow users to specify the location and name of the status files (Richard Hughes)
 - Always check for duplicate screenshots when using as_app_subsume() (Richard Hughes)
 - Always download data files for each application on Fedora (Richard Hughes)
 - Always write a 'source' screenshot image (Richard Hughes)
 - Assume local files are untrusted when parsing (Richard Hughes)
 - Copy the icon kind when removing duplicates (Richard Hughes)
 - Deallocate the pixbuf data when the AsbApp has been saved (Richard Hughes)
 - Do not allow NoDisplay=true applications to ever be in the metadata (Richard Hughes)
 - Do not allow RequiresAppdata to become true with AppData (Richard Hughes)
 - Do not hardcode a blacklist of package extra deps (Richard Hughes)
 - Fix linking with libarchive (Igor Gnatenko)
 - Load extra screenshots for any apps created in appstream-extra (Richard Hughes)
 - Never load SVG files at the native size (Richard Hughes)
 - Never scale up small screenshots (Richard Hughes)
 - Never upscale icons, either pad or downscale with sharpening (Richard Hughes)
 - Never use release descriptions from package files (Richard Hughes)
 - Promote DESKTOP sources to APPDATA if we subsume an appdata.xml file (Richard Hughes)
 - Sort the <component> values alphabetically (Richard Hughes)
 - Use as_image_get_alpha_flags() when validating and building metadata (Richard Hughes)
 - Use realpath() when setting AsbContext paths (Richard Hughes)
 - Validate screenshot captions (Richard Hughes)
 - Write metadata of the failed applications (Richard Hughes)

Version 0.2.1
~~~~~~~~~~~~~
Released: 2014-06-24

New Features:
 - Add AS_NODE_INSERT_FLAG_MARK_TRANSLATABLE (Richard Hughes)
 - Add AS_NODE_TO_XML_FLAG_SORT_CHILDREN (Richard Hughes)
 - Add an 'appstream-util upgrade' command to convert version < 0.6 metadata (Richard Hughes)
 - Add as_node_find_with_attribute() (Richard Hughes)

Bugfixes:
 - Add packages recursively when using appstream-builder --packages-dir (Richard Hughes)
 - Allow empty URL sections (Richard Hughes)
 - Always use the latest version of AppStream for logs (Richard Hughes)
 - Do not abort the build if a non-package file is found while building (Richard Hughes)
 - Do not include <metadata> for pre-0.4 metadata (Richard Hughes)
 - Do not ship Addons in metadata version less than 0.7 (Richard Hughes)
 - Do not write X-Kudo-RecentRelease for new versions of the metadata (Richard Hughes)
 - Fix the xmldir in the APPSTREAM_XML_RULES m4 helper (Richard Hughes)
 - Include a newline before XML comments to help them stand out (Richard Hughes)

Version 0.2.0
~~~~~~~~~~~~~
Released: 2014-06-19

Notes:
 - This is the first release that merges the createrepo_as project with this one.
   A new experimental command 'appstream-builder' has been added and can be used
   by distributors to build metadata. Normal users don't need this or the shared
   library libappstream-bulder, and this can be split off into a subpackage by
   downstream if required.
 - We're slowly merging parts of appdata-tools into this project too, but we'll
   provide more details when the merge is complete.

New Features:
 - Add an m4 file to easily validate AppData and MetaInfo files (Richard Hughes)
 - Add a --nonet option to appstream-util (Richard Hughes)
 - Add 'appstream appdata-from-desktop' to autogenerate a boilerplate file (Richard Hughes)
 - Add as_app_get_mimetypes() (Richard Hughes)
 - Add as_app_get_pkgname_default() (Richard Hughes)
 - Add as_app_guess_source_kind() (Richard Hughes)
 - Add as_app_to_file() (Richard Hughes)
 - Add as_node_remove_attribute() (Richard Hughes)
 - Add as_node_to_file() (Richard Hughes)
 - Add bash-completion files for appstream-builder and appstream-util (Igor Gnatenko)
 - Add <developer_name> from the draft AppStream 0.7 specification (Richard Hughes)
 - Add manpages for appstream-util and appstream-builder (Richard Hughes)
 - Add Russian translation (Igor Gnatenko)
 - Allow installing AppData and MetaInfo files using appstream-util (Richard Hughes)
 - Allow validating more types of files (Richard Hughes)
 - Make the project translatable using transifex (Igor Gnatenko)

Bugfixes:
 - Accept slightly truncated SPDX IDs (Richard Hughes)
 - Add a AsAppParseFlags flag to be able to append non-duplicate data (Richard Hughes)
 - Add appstream-build from the createrepo_as project (Richard Hughes)
 - Allow any SPDX license when validating in relaxed mode (Richard Hughes)
 - Allow 'appstream-util convert' to work with two AppData files (Richard Hughes)
 - Allow as_node_get_attribute_as_int() to parse negative numbers (Richard Hughes)
 - Allow comments on the root XML node (Richard Hughes)
 - Allow dumping .desktop, .appdata.xml and .metainfo.xml files in appstream-util (Richard Hughes)
 - Do not add addons that are packaged in the parent package (Richard Hughes)
 - Do not require a content license to be included into the metadata (Richard Hughes)
 - Don't add the fake ApplicationAddon category for addons (Richard Hughes)
 - Inherit search tokens from the addon to the main application (Richard Hughes)
 - Return the URL in the validation error when screenshots fail to be loaded (Richard Hughes)
 - Validate the <developer_name> tag values (Richard Hughes)

Version 0.1.7
~~~~~~~~~~~~~
Released: 2014-06-12

New Features:
 - Add <extends> from the draft AppStream 0.7 specification (Richard Hughes)
 - Add support for the 'dbus' AsProvideKind (Richard Hughes)
 - Add support for validating metainfo.xml files (Richard Hughes)

Bugfixes:
 - Allow 'appstream-util validate' to validate multiple files (Richard Hughes)
 - Automatically demangle the update contact (Richard Hughes)
 - Correctly use convert-translatable when the source kind is already set (Richard Hughes)
 - Do not log a critical warning in as_store_to_xml() (Richard Hughes)
 - Do not write a screenshot type of 'normal' as it's the default value (Richard Hughes)
 - Don't include the filename in the error output (Richard Hughes)
 - Fail to validate AppData files with URLs in the descriptions (Richard Hughes)
 - Fix a crash when we try to validate <p></p> (Richard Hughes)
 - Support the non-standard X-Ubuntu-Software-Center-Name (Richard Hughes)

Version 0.1.6
~~~~~~~~~~~~~
Released: 2014-05-28

New Features:
 - Add as_app_get_names() (Richard Hughes)
 - Add as_image_get_basename() (Richard Hughes)
 - Add as_image_get_md5() (Richard Hughes)
 - Add as_image_load_filename() (Richard Hughes)
 - Add as_image_save_filename() (Richard Hughes)
 - Add as_image_save_pixbuf() (Richard Hughes)
 - Add as_image_set_pixbuf() (Richard Hughes)
 - Add as_node_get_comment() (Richard Hughes)
 - Add AsProvide (Richard Hughes, Kalev Lember)
 - Add as_screenshot_get_source() convenience helper (Richard Hughes)
 - Add AS_TAG_FLAG_USE_TRANSLATED (Richard Hughes)
 - Add validation for <releases> (Richard Hughes)

Bugfixes:
 - Also support validating .appdata.xml.in files (Richard Hughes)
 - Correctly parse the localized descriptions from AppData files (Richard Hughes)
 - Export as_app_set_source_kind() (Richard Hughes)
 - Fix validation of old-style AppData files without screenshot sizes (Richard Hughes)
 - Only autodetect the AsAppSourceKind when unknown (Richard Hughes)
 - Only require <project_licence> when being strict (Richard Hughes)
 - Only show the thumbnail when creating the HTML status page (Richard Hughes)
 - Retain comments in .desktop and .appdata.xml files when required (Richard Hughes)
 - Subsume more properties in AsApp (Richard Hughes)

Version 0.1.5
~~~~~~~~~~~~~
Released: 2014-05-12

New Features:
 - Add as_app_has_category() (Richard Hughes)
 - Add as_utils_check_url_exists() (Richard Hughes)
 - Add as_utils_spdx_license_tokenize() (Richard Hughes)
 - Add the new 'help' url type (Richard Hughes)
 - Check the licenses against the SPDX list when validating (Richard Hughes)

Bugfixes:
 - Be less strict with the case of the XML header (Richard Hughes)
 - Do not save the 'xx' locale (Richard Hughes)
 - Do not validate AppData files without <project_license> (Richard Hughes)
 - Don't crash when doing 'status-html' on an empty XML file (Richard Hughes)
 - LXDE uses X-LXDE-Settings for settings panels (Richard Hughes)
 - Only count desktop applications when doing the overview stats (Richard Hughes)
 - Support AppData version 0.6 files too (Richard Hughes)
 - Use SPDX license IDs in <metadata_license> (Richard Hughes)

Version 0.1.4
~~~~~~~~~~~~~
Released: 2014-04-25

Notes:
 - This release adds a utility 'appstream-util' that can do simple operations
   on AppStream metadata including generating status pages or converting the
   metadata from one version to another.

New Features:
 - Add AsProblem to report non-critical problems with metadata
 - Add as_app_get_metadata_license()
 - Add as_app_get_source_kind()
 - Add as_app_get_update_contact()
 - Add as_app_subsume_full()
 - Add as_app_validate() to validate AppStream and AppData files
 - Add as_node_reflow_text() to reflow XML text properly
 - Add as_node_set_name() internal method
 - Add as_store_get_apps_by_metadata()
 - Add as_util_get_possible_kudos()
 - Add a flag to as_node_to_xml() so it can process all children
 - Add a 'html-status' command to appstream-util
 - Add a 'non-package-yaml' command to appstream-util
 - Add a 'validate' command to appstream-util
 - Parse AppData files when using as_app_parse_file()
 - Read AppStream metadata from the per-machine location

Bugfixes:
 - Allow writing AppStream entries with an unknown type
 - Do not add a 'type' attribute if the component type is unknown
 - Do not crash if an AppStream entry has no ID
 - Do not save metadata keys with an 'x-test' locale
 - Do not try to parse non-application tags as applicatons
 - Do not write xml:lang key versions when the same as the 'C' version
 - Return -1 from as_app_get_language() if the language is not found
 - Sort the application languages by name so they are predictable
 - Support <screenshot> sections without <image>'s
 - Support the AppStream 0.6.1 priority attribute
 - Support translated <ul> and <ol> tags when normalizing
 - When adding a duplicate AppStream application merge the entries

Version 0.1.3
~~~~~~~~~~~~~
Released: 2014-04-10

New Features:
 - Add as_app_search_matches_all()
 - Add as_utils_is_stock_icon_name()

Bugfixes:
 - Actually add mimetype data to the AsApp object
 - Do not allow applications without icons
 - Ignore settings panels when parsing desktop files
 - Load AppStream files assuming literal text strings
 - Only set app-install icons to cached if not already stock
 - Set the icon kind to stock if it matches any stock icon
 - Use the legacy names when using as_node_get_tag()

Version 0.1.2
~~~~~~~~~~~~~
Released: 2014-03-26

Notes:
 - This release adds basic Ubuntu app-install support, speeds up the time taken
   to parse large metadata files and reduces the amount of memory used to load
   the AppStream metadata.

New Features:
 - Add as_app_parse_file() which parses a .desktop file into an AsApp
 - Add as_node_get_tag() and only store the name when the tag is unknown
 - Add as_node_take_attribute() to reduce allocations during parse
 - Add as_store_load() to load system and user locations
 - Add as_tag_from_string_full() to control whether fallback names are used
 - Load the Ubuntu app-install data which uses screenshots.debian.net
 - Use gperf to generate a perfect hash for the tag names

Bugfixes:
 - Do not use GHashTable to store node attributes
 - Reduce the number of small attr key allocations
 - Use the full ID for the AsStore hash

Version 0.1.1
~~~~~~~~~~~~~
Released: 2014-03-21

New Features:
 - Add an 'api-version' property to AsStore
 - Add as_store_from_xml() to load text XML not from a file
 - Add the new AsUrlKind's and <architectures> from API 0.6
 - Speed up as_tag_to_string() by using a table and a single lookup
 - Support old-style markup-less <description> tags
 - Support the 'origin' attribute on the root node

Bugfixes:
 - Do not crash when using getting an unset description
 - Do not depend on functions introduced in Glib 2.39.1
 - Fix parsing incompletely translated AppData files
 - The 'appcategories' tag is now deprecated for 'categories'

Version 0.1.0
~~~~~~~~~~~~~
Released: 2014-03-18

Notes:
 - This library provides GObjects and helper methods to make it easy to read and
   write AppStream metadata.

New Features:
 - Add and search for applications in an application store
 - Easily retrieve the best application data for the current locale
 - Efficiently interface with more heavy-weight parsers like expat
 - Get screenshot image data and release announcements
 - Read and write compressed AppStream XML files
