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RELEASES.md

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0.20.0 (2019-12-11)

Breaking Changes

  1. tarpc has updated its tokio dependency to the latest 0.2 version.
  2. The tarpc crates have been unified into just tarpc, with new Cargo features to enable functionality.
    • The bincode-transport and json-transport crates are deprecated and superseded by the serde_transport module, which unifies much of the logic present in both crates.

0.13.0 (2018-10-16)

Breaking Changes

Version 0.13 marks a significant departure from previous versions of tarpc. The API has changed significantly. The tokio-proto crate has been torn out and replaced with a homegrown rpc framework. Additionally, the crate has been modularized, so that the tarpc crate itself contains only the macro code.

New Crates

  • crate rpc contains the core client/server request-response framework, as well as a transport trait.
  • crate bincode-transport implements a transport that works almost exactly as tarpc works today (not to say it's wire-compatible).
  • crate trace has some foundational types for tracing. This isn't really fleshed out yet, but it's useful for in-process log tracing, at least.

All crates are now at the top level. e.g. tarpc-plugins is now tarpc/plugins rather than tarpc/src/plugins. tarpc itself is now a very small code surface, as most functionality has been moved into the other more granular crates.

New Features

  • deadlines: all requests specify a deadline, and a server will stop processing a response when past its deadline.
  • client cancellation propagation: when a client drops a request, the client sends a message to the server informing it to cancel its response. This means cancellations can propagate across multiple server hops.
  • trace context stuff as mentioned above
  • more server configuration for total connection limits, per-connection request limits, etc.

Removals

  • no more shutdown handle. I left it out for now because of time and not being sure what the right solution is.
  • all async now, no blocking stub or server interface. This helps with maintainability, and async/await makes async code much more usable. The service trait is thusly renamed Service, and the client is renamed Client.
  • no built-in transport. Tarpc is now transport agnostic (see bincode-transport for transitioning existing uses).
  • going along with the previous bullet, no preferred transport means no TLS support at this time. We could make a tls transport or make bincode-transport compatible with TLS.
  • a lot of examples were removed because I couldn't keep up with maintaining all of them. Hopefully the ones I kept are still illustrative.
  • no more plugins!

0.10.0 (2018-04-08)

Breaking Changes

Fixed rustc breakage in tarpc-plugins. These changes require a recent version of rustc.

0.10.0 (2018-03-26)

Breaking Changes

Updates bincode to version 1.0.

0.9.0 (2017-09-17)

Breaking Changes

Updates tarpc to use tarpc-plugins 0.2.

0.8.0 (2017-05-05)

Breaking Changes

This release updates tarpc to use serde 1.0. As such, users must also update to use serde 1.0. The serde 1.0 release notes detail migration paths.

0.7.3 (2017-04-26)

This release removes the Sync bound on RPC args for both sync and future clients. No breaking changes.

0.7.2 (2017-04-22)

Breaking Changes

This release updates tarpc-plugins to work with rustc master. Thus, older versions of rustc are no longer supported. We chose a minor version bump because it is still source-compatible with existing code using tarpc.

0.7.1 (2017-03-31)

This release was purely doc fixes. No breaking changes.

0.7 (2017-03-31)

Breaking Changes

This release is a complete overhaul to build tarpc on top of the tokio stack. It's safe to assume that everything broke with this release.

Two traits are now generated by the macro, FutureService and SyncService. SyncService is the successor to the original Service trait. It uses a configurable thread pool to serve requests. FutureService, as the name implies, uses futures to serve requests and is single-threaded by default.

The easiest way to upgrade from a 0.6 service impl is to impl SyncService for MyService. For more complete information, see the readme and the examples directory.

0.6 (2016-08-07)

Breaking Changes

  • Updated serde to 0.8. Requires dependents to update as well.

0.5 (2016-04-24)

Breaking Changes

0.5 adds support for arbitrary transports via the Transport trait. Out of the box tarpc provides implementations for:

  • Tcp, for types impling ToSocketAddrs.
  • Unix sockets via the UnixTransport type.

This was a breaking change: handler.local_addr() was renamed handler.dialer().

0.4 (2016-04-02)

Breaking Changes

  • Updated to the latest version of serde, 0.7.0. Because tarpc exposes serde in its API, this forces downstream code to update to the latest version of serde, as well.

0.3 (2016-02-20)

Breaking Changes

  • The timeout arg to serve was replaced with a Config struct, which currently only contains one field, but will be expanded in the future to allow configuring serialization protocol, and other things.
  • serve was changed to be a default method on the generated Service traits, and it was renamed spawn_with_config. A second default fn was added: spawn, which takes no Config arg.

Other Changes

  • Expanded items will no longer generate unused warnings.