Update the release note about the callback feature #399

ChangeLog.md

@@ -4,9 +4,27 @@ RELEASE NOTES for Perl version of Sisimai
 - download: "https://metacpan.org/pod/Sisimai"
 - document: "https://libsisimai.org/"
 
+v5.0.0
+--------------------------------------------------------------------------------
+- release: ""
+- version: ""
+- changes:
+  - INCOMPATIBLE CHANGES SINCE SISIMAI VERSION 4
+    - Callback feature #399
+      - Parameter `hook` for callback has been removed from `Sisimai->make` and
+        `Sisimai->dump`. Use the first element of `c___` parameter for setting
+        a callback method instead.
+      - Parameter `c___` is a parameter of `Sisimai->make` and `Sisimai->dump`,
+        is an array reference and have two elements:
+      - The first element of `c___` is the same with `hook` parameter, is for a
+        callback method email headers and entire message body
+      - The second element of `c___` parameter is for a callback method for each
+        email file in Maildir/. The callback method is called at the end of each
+        email file parsing.
+
 v4.25.8
 --------------------------------------------------------------------------------
-- release: ""Fri, 17 Jul 2020 11:59:49 +0900 (JST)
+- release: "Fri, 17 Jul 2020 11:59:49 +0900 (JST)"
 - version: "4.25.8"
 - changes:
   - **Repository URL was changed to https://github.com/sisimai/p5-sisimai**
@@ -20,8 +38,6 @@ v4.25.8
   - Remove unused method `Sisimai::Rhost->list` #396
   - Implement `Sisimai::Rhost::Cox` for parsing bounce mails returned from Cox:
     https://cox.com/. Thanks to @meir-w #398
-  - Callback feature for each email file in Maildir/ #399
-    - `Sisimai->make`, `Sisimai->dump` receive a hook method at `c___` argument
 
 v4.25.7
 --------------------------------------------------------------------------------