README.md in pgslice-0.3.6 vs README.md in pgslice-0.4.0

@@ -2,10 +2,12 @@
 
 Postgres partitioning as easy as pie. Works great for both new and existing tables, with zero downtime and minimal app changes. Archive older data on a rolling basis to keep your database size under control.
 
 :tangerine: Battle-tested at [Instacart](https://www.instacart.com/opensource)
 
+[![Build Status](https://travis-ci.org/ankane/pgslice.svg?branch=master)](https://travis-ci.org/ankane/pgslice)
+
 ## Install
 
 pgslice is a command line tool. To install, run:
 
 ```sh
@@ -278,11 +280,11 @@
 
 This set up allows you to read and write with the original table name with no knowledge it’s partitioned. However, there are a few things to be aware of.
 
 ### Writes
 
-If you use `INSERT` statements with a `RETURNING` clause (as frameworks like Rails do), you’ll no longer receive the id of the newly inserted record(s) back. If you need this, you can either:
+Before Postgres 10, if you use `INSERT` statements with a `RETURNING` clause (as frameworks like Rails do), you’ll no longer receive the id of the newly inserted record(s) back. If you need this, you can either:
 
 1. Insert directly into the partition
 2. Get value before the insert with `SELECT nextval('sequence_name')` (for multiple rows, append `FROM generate_series(1, n)`)
 
 ### Reads
@@ -312,10 +314,21 @@
 pgslice prep <table> --no-partition
 pgslice fill <table> --where "id > 1000" # use any conditions
 pgslice swap <table>
 ```
 
+## Schema Updates
+
+Once a table is partitioned, here’s how to change the schema:
+
+- To add, remove, or modify a column, make the update on the master table only
+- To add or remove an index, make the update on the master table and all partitions
+
+## Declarative Partitioning
+
+Postgres 10 introduces [declarative partitioning](https://www.postgresql.org/docs/10/static/ddl-partitioning.html#ddl-partitioning-declarative). A major benefit is `INSERT` statements with a `RETURNING` clause work as expected. If you prefer to use trigger-based partitioning instead (not recommended), pass the `--trigger-based` option to the `prep` command.
+
 ## Upgrading
 
 Run:
 
 ```sh
@@ -362,5 +375,15 @@
 
 - [Report bugs](https://github.com/ankane/pgslice/issues)
 - Fix bugs and [submit pull requests](https://github.com/ankane/pgslice/pulls)
 - Write, clarify, or fix documentation
 - Suggest or add new features
+
+To run tests, do:
+
+```sh
+git clone https://github.com/ankane/pgslice.git
+cd pgslice
+bundle install
+createdb pgslice_test
+bundle exec rake
+```