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Merged
wboayue merged 1 commit into from
Sep 6, 2026
Merged

Release 4.0.1 #798

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5 changes: 4 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased]

## [4.0.1] - 2026-09-06

### Changed

- `TCP_NODELAY` is now on by default (`ClientBuilder::tcp_no_delay` defaults to `true`), matching the official IB clients. With Nagle's algorithm on, a request written while the previous one is still unacknowledged waits for that ACK — up to ~40 ms on Linux and ~200 ms on macOS against TWS's delayed ACK — so a burst of orders placed in quick succession was serialised on the ACK of each preceding one. A single request was never affected. Pass `.tcp_no_delay(false)` to restore the old behaviour.
Expand Down Expand Up @@ -172,7 +174,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
Versions up to and including [3.0.1] predate this changelog; see the
[GitHub Releases page](https://github.com/wboayue/rust-ibapi/releases) for their notes.

[Unreleased]: https://github.com/wboayue/rust-ibapi/compare/v4.0.0...HEAD
[Unreleased]: https://github.com/wboayue/rust-ibapi/compare/v4.0.1...HEAD
[4.0.1]: https://github.com/wboayue/rust-ibapi/compare/v4.0.0...v4.0.1
[4.0.0]: https://github.com/wboayue/rust-ibapi/compare/v3.3.0...v4.0.0
[3.3.0]: https://github.com/wboayue/rust-ibapi/compare/v3.2.1...v3.3.0
[3.2.1]: https://github.com/wboayue/rust-ibapi/compare/v3.2.0...v3.2.1
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2 changes: 1 addition & 1 deletion Cargo.toml
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Expand Up @@ -4,7 +4,7 @@ default-members = ["."]

[package]
name = "ibapi"
version = "4.0.0"
version = "4.0.1"
edition = "2021"
authors = ["Wil Boayue <wil@wsbsolutions.com>"]
description = "A Rust implementation of the Interactive Brokers TWS API, providing a reliable and user friendly interface for TWS and IB Gateway. Designed with a focus on simplicity and performance."
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