Version bump to 0.1.1 [skip ci]

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.1.1 (unreleased)
+## 0.1.1 (2021-04-25)
 
 - Added binary representation for `COPY`
 - Marked functions as `PARALLEL SAFE`

README.md

@@ -17,7 +17,7 @@ Supports L2 distance, inner product, and cosine distance
 Compile and install the extension (supports Postgres 9.6+)
 
 ```sh
-git clone --branch v0.1.0 https://github.com/ankane/pgvector.git
+git clone --branch v0.1.1 https://github.com/ankane/pgvector.git
 cd pgvector
 make
 make install # may need sudo
@@ -136,6 +136,16 @@ Libraries that use pgvector:
 
 - [Neighbor](https://github.com/ankane/neighbor) (Ruby)
 
+## Upgrading
+
+### 0.1.1
+
+Follow the [installation instructions](#installation) and run:
+
+```sql
+ALTER EXTENSION vector UPDATE TO '0.1.1';
+```
+
 ## Thanks
 
 Thanks to: