update changelog

Author: jhunsaker

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [upcoming] - TBD
+## [2.3.2] - 2021-09-21
 - [config] Replaced `prodbeta` with current `mainnet` keys in the `init_key_store.sh`
 - Break out admin-only request/rpc classes into separate files.
 - [pyth_admin] Separate out admin commands into new binary.
@@ -16,6 +16,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [pyth] add account filtering to get_program_accounts
 - [pyth] add option to disable ws connection to RPC node
 - [docker] add gcc-multilib package
+- [pyth] add python tests
+- [pyth] filter out zero prices in aggregation
 
 ## [2.3.1] - 2021-08-20
 - Fixed uninitialized variable in `manager.cpp`