# Changelog
## 0.4.1 - 2023-01-09
- Rename `TickMsg` to `MboMsg`
- Upgrade dependencies
- Fix serialization of `SecurityUpdateAction`
## 0.4.0 - 2023-01-06
- Rename `SymDefMsg` to `InstrumentDefMsg`
- Rename some fields in `InstrumentDefMsg`
- Add `SymbolMappingMsg`
- Add `transmute_header_bytes`
## 0.3.1 - 2022-12-01
- Add `trivial_copy` feature to derive `Copy` trait for records
- Add `from_str` functions for several enums
- Improve documentation
## 0.3.0 - 2022-11-03
- Initial release