Patch 5.0.4/API changes

• Functions pertaining to talents and specializations are renamed:
• → (NB: player character-only)
• →
• →
• →
• →
• →
• →
• →
• Many party/raid-related functions and events are merged into group variants.
• →
• →
• →
• → (NB: non-0 in any group, including parties; use to check for group type)
• →
• Functions pertaining to Real/Fake groups (home realm and instance/battleground-specific groups, respectively) are removed. Instead, group functions take an argument specifying which group you want to query:
• LE_PARTY_CATEGORY_HOME will query information about your "real" group -- the group you were in on your Home realm, before entering any instance/battleground.
• LE_PARTY_CATEGORY_INSTANCE will query information about your "fake" group -- the group created by the instance/battleground matching mechanism.
• Achievement API:
• split into two separate functions:
• By criteria order: (achievementID, criteriaIndex)
• By internal criteria ID: (achievementID, criteriaID)
• Other
• → has a new return value.
• → has a new argument value.
• →
• The sub-event of no longer fires for spells with cast times.
• has new return values.
• has new return values.
• has new return values.

• Pet battles
• Black market auction house
• Class specializations
• Challenge modes
• Upgrading items
• - Now returns a MapID as its 8th result, allowing addons to identify the current instance/continent without relying on localized names.

• New macro conditionals:
• : True when the player is participating in a pet battle.

• CHANGED - Returns information about talents for player/pet/inspected unit/arbitrary classes.
• NEW - Returns maximum level-appropriate talent tier.
• NEW - Returns whether a talent is not selected in a given tier, and the selected talent's ID.
• NEW - Learns specified talents.
• NEW - Returns information about the cost of unlearning a single talent.
• NEW - Unlearns a single talent.

• has new return values.
• has new return values.

• NEW ("event", "unit1"[, "unit2"]) - Triggers the widget's OnEvent handler when the specified event occurs for the specified units.
• NEW (enable) - Enables or disables the widget (available for any widget with Enable/Disable methods).
• NEW (show) - Shows or hides the widget (available for any widget with Show/Hide methods).

• is renamed to ; the old version of which is removed.
• The minimap buttons and is renamed/merged to.
• is removed; druid shapeshifting UI is now handled by the.

• - the new version of UnitIsRaidOfficer returns false if the player is leader. The old function returned true.
• - when not in a party/raid, the new version of UnitInRange returns false for "player" and "pet". The old function returned true.
• - If the path passed into Texture:SetTexture(path) is invalid, the texture will display as solid green.
• - If the path passed into Texture:SetTexture(path) is invalid, Texture:GetTexture will still return whatever was passed in. Previously, it would return nil if the texture path was invalid. It seems that it is no longer possible to determine if a texture is valid or not (useful for validating user input).
• - requesting the GUID of another party member (possibly raid too - not tested) while responding to the new event during initial UI load while you are already in a group returns nil. This was not previously the case with the old and events.
• / ENVIRONMENTAL_DAMAGE - the environmental type reported from this event is now reporting non-localized proper case strings (e.g. "Falling") instead of non-localized capitalized strings (e.g. "FALLING").

Click on the headers to expand the tables below.