MDL-15471 tag - add upgrade.txt notification of changes

reskit · Sep 26, 2012 · 680afde · 680afde
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+This files describes API changes in tagging, information provided
+here is intended especially for developers.
+
+=== 2.4 ===
+
+Significant cleanup was done to course tags which involved some API
+changes, see MDL-15471
+* tag_print_cloud() arguments were changed
+* coursetag_print_cloud() was removed.
+* coursetag_get_official_keywords() was removed
+* coursetag_rss_feeds() was removed