diff --git a/Cargo.toml b/Cargo.toml
index 2b5fc81..35d9fc9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "unicode-id-start"
-version = "1.1.2"
+version = "1.2.0"
 authors = ["David Tolnay <dtolnay@gmail.com>", "Boshen <boshenc@gmail.com>"]
 categories = ["development-tools::procedural-macro-helpers", "no-std", "no-std::no-alloc"]
 description = "Determine whether characters have the ID_Start or ID_Continue properties according to Unicode Standard Annex #31"
diff --git a/README.md b/README.md
index a6416dc..dc02c4b 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,16 @@ Implementation of [Unicode Standard Annex #31][tr31] for determining which
 
 ## Changelog
 
+### 1.2.0
+
+- patch `・` U+30FB KATAKANA MIDDLE DOT and `･` U+FF65 HALFWIDTH KATAKANA MIDDLE DOT
+
+Unicode 4.1 through Unicode 15 omitted these two characters from ID_Continue by accident.
+However, this accident was corrected in Unicode 15.1.
+Any JS VM that supports ES6+ but that uses a version of Unicode earlier than 15.1 will consider these to be a syntax error,
+so we deliberately omit these characters from the set of identifiers that are valid in both ES5 and ES6+.
+For more info see 2.2 in https://www.unicode.org/L2/L2023/23160-utc176-properties-recs.pdf
+
 ### 1.1.2
 
 - Unicode 15.1.0