Add changelog for v1.1.1

CHANGELOG.md

@@ -1,5 +1,26 @@
 # Icinga DB Changelog
 
+## 1.1.1 (2023-TODO)
+
+TODO
+
+* Fix a possible crash when the Icinga 2 heartbeat is lost. #559
+* Retry additional non-fatal database errors. #593 #583
+* Make heartbeat compatible with Percona XtraDB Cluster. #609
+* Write a hint for empty arrays/dicts into `customvar_flat` for Icinga DB Web. #601
+* Schema: Allow longer names for notification objects. #584
+* Schema: Add missing indices to `hostgroup`, `servicegroup`, and `customvar_flat`. #616 #617
+* Schema: Change sort order of history event types. #626
+* `icingadb-migrate`: Ignore events that miss crucial information. #551
+* `icingadb-migrate`: Fix a foreign key error for flapping history with `ido.from` set. #554
+* `icingadb-migrate`: Fix a constraint violation for flexible downtimes that never started. #623
+* Config: Warn about unknown options (`icingadb-migrate` rejects them). #605 #631
+* Don't log a port number for UNIX socket addresses. #542
+* Fix some custom JSON encode functions for `null` values. #612
+* Documentation: add TLS options to `icingadb-migrate` example config. #604
+* Documentation: Replace `apt-get` with `apt`. #545
+* Update dependencies. #548 #549 #588 #589 #590 #594 #595 #596 #598 #599 #603 #632
+
 ## 1.1.0 (2022-11-10)
 
 This release adds a tool for migrating history from IDO. Apart from that,