docs: refine v43 changelogs

CHANGES-4.3.md

@@ -39,22 +39,24 @@ File format:
   Prior to this enhancement, one would have to set `broker.shared_dispatch_ack_enabled` to true
   to prevent sessions from buffering messages, however this acknowledgement comes with a cost.
 
+- Prior to this fix, some of the time stamps were taken from the `os` module (system call),
+  while majority of other places are using `erlang` module (from Erlang virtual machine).
+  This inconsistent behaviour has caused some trouble for the Delayed Publish feature when OS time changes.
+  Now all time stamps are from `erlang` module. [#8908](https://github.com/emqx/emqx/pull/8908)
 
 ### Bug fixes
 
 - Fix HTTP client library to handle SSL socket passive signal. [#9145](https://github.com/emqx/emqx/pull/9145)
 
-- Fix delayed publish inaccurate caused by os time change. [#8908](https://github.com/emqx/emqx/pull/8908)
-
 - Hide redis password in error logs [#9071](https://github.com/emqx/emqx/pull/9071)
   In this change, it also included more changes in redis client:
-  - Improve redis connection error logging [eredis:19](https://github.com/emqx/eredis/pull/19).
+  - Improve redis connection error logging [eredis #19](https://github.com/emqx/eredis/pull/19).
     Also added support for eredis to accept an anonymous function as password instead of
     passing around plaintext args which may get dumpped to crash logs (hard to predict where).
     This change also added `format_status` callback for `gen_server` states which hold plaintext
     password so the process termination log and `sys:get_status` will print '******' instead of
     the password to console.
-  - Avoid pool name clashing [eredis_cluster#22](https://github.com/emqx/eredis_cluster/pull/22)
+  - Avoid pool name clashing [eredis_cluster #22](https://github.com/emqx/eredis_cluster/pull/22)
     Same `format_status` callback is added here too for `gen_server`s which hold password in
     their state.