CHANGELOG.md in easy_xapian-ruby-1.4.20 vs CHANGELOG.md in easy_xapian-ruby-1.5.0

@@ -1,4 +1,9 @@
+## 1.5.0 (Jan 26th, 2023)
+ - Update xapian-core to 1.4.21
+ - Add prototype of exact-op feature
+ - Force to build x64 bit (docid, termpos and termcount)
+
 ## 1.4.20 (Dec 3th, 2021)
 
 - Custom modification: add Polish stemmer to xapian-core
 
 ## 1.4.19 (Aug 23th, 2021)