Backfill CHANGELOG.md for 1.x releases

CHANGELOG.md

@@ -1,3 +1,31 @@
 # Changelog
 
 ## [Unreleased]
+
+* Replace the `logging` gem with stdlib `logger`
+
+## 1.2.0 (2025-10-28)
+
+* Add method to delete calendar items with meeting cancellation
+* Add method to find items using a calendar view
+* Create events with categories
+* Support setting default headers on HTTP options
+* Fix `get_item` for occurrence item ids; fix dummy draft ordering when submitting file attachments
+* Correct error-raising logic; avoid broken versions of Nokogiri
+
+## 1.1.0 (2016-12-09)
+
+* Override HTTPClient receive/connect timeouts; set a custom user agent; choose the SSL version
+* Recurring event support when creating events; expose `Task` status/percent complete, `CalendarItem#legacy_free_busy_status`, and `Item#last_modified_time`
+* Add PostItem type; `#mark_unread` alongside `#mark_read`
+* Meeting time zone support in the builder; meeting action accessors; `IsResponseRequested` parameter
+* Tolerant parsing: strip known bad character sequences before parsing
+* Reorder elements to meet the XSD sequence; optional message body with explicit type
+
+## 1.0.0 (2014-06-19)
+
+* Ground-up Exchange Web Services (EWS) rewrite with a new SAX parsing back-end
+* Folder operations (find/create/move/copy/empty) and item models for messages, calendar items, tasks, and contacts
+* Attachment support; out-of-office settings; user availability
+* All exceptions now stem from `EwsError`; pass custom CA cert paths/files and HTTP options to the connection
+* Exchange 2013 SP1 version constant; sensible collection defaults (`[]` instead of `nil`)