I've managed to put in the time to update the addon to work with the latest patch, the fully automatic announcing is unfortunately dead however. The latest release is technically still somewhat experimental. Some bugs might arise, so when they do make sure to let me know! For a full list of changes head over to the file's changelog.
Rare Share: Core (required for modules to work)
This addon strives to make finding and killing Rares in zones easier by semi-automatically announcing rares in chat whenever one is found. Others with the Addon have the option to have waypoints automatically set to where the rare was sighted on top of an audible clue to grab the user's attention.
Click here for a translation template of the Mechagon module
Click here for a translation template of the core module