diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb0bb1f..d8affa0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,14 @@ This project bumps the version number for any changes (including documentation u
 
 ## [Unreleased] - i.e. pushed to main branch but not yet tagged as a release
 
+## [6.0.0] - 2024-08-24
+- **Breaking**
+  - Revert to activesupport v. 6.0.4.7 for compatibility with CSV Importer
+  - `Response.terms` now returns an Array of `UsedTerm` objects instead of Hashes
+- Add `UsedTerm.missing?` convenience method
+- Fix bug where `DataHandler` could not handle a batch config passed as a String
+- Fix bug where `HandlerFullRecord.process` failed if passed a Hash instead of a `Response`
+
 ## [5.0.6] - 2024-02-11
 - Return date details responses early if there are errors, to avoid exceptions
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 397e67c..d8a5809 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,7 +12,7 @@ GIT
 PATH
   remote: .
   specs:
-    collectionspace-mapper (5.0.6)
+    collectionspace-mapper (6.0.0)
       activesupport (= 6.0.4.7)
       chronic
       collectionspace-client (~> 0.15.0)
diff --git a/lib/collectionspace/mapper/version.rb b/lib/collectionspace/mapper/version.rb
index 8f24b74..f4fc24c 100644
--- a/lib/collectionspace/mapper/version.rb
+++ b/lib/collectionspace/mapper/version.rb
@@ -2,6 +2,6 @@
 
 module CollectionSpace
   module Mapper
-    VERSION = "5.0.6"
+    VERSION = "6.0.0"
   end
 end