Release v0.6.0 · tokio-rs/prost

PROST! is a Protocol Buffers implementation for the Rust Language. prost generates simple, idiomatic Rust code from proto2 and proto3 files.

prost 0.6.0 includes breaking changes:

The minimum-supported Rust version (MSRV) is now 1.39.0.
The bytes public dependency version is now 0.5.
The prost-types Timestamp and Duration types now impl TryFrom for their
std::time equivalents. The old inherent try_from methods have been
removed.
Deeply nested messages now fail decoding with an error, instead of potentially
resulting in a stack overflow. The limit is set to a nesting depth of 100, and
the limit can be disabled using a new no-recursion-limit Cargo feature.

As well as many new (non-breaking) features and improvements:

@hanya added support for protobuf Group types.
@danburkert improved the benchmark suite, including adding support for the
full set of upstream message encoding and decoding benchmarks.
@nrc implemented a series of micro-optimizations which result in faster
message encoding and decoding.
@dunmatt improved the method docs on generated types.
@lukaslueg removed the dependency on byteorder.
@parasyte added the ServiceGenerator::finalize_package, which is useful for
advanced service generators.
@joelgallant improved the error message that occurs when attempting to compile
.proto files without a package specifier.
@LucioFranco removed the direct dependency of generated types on the bytes
crate, which means applications which use prost code generation are no
longer required to declare a bytes dependency.
@ErichDonGubler and @hobofan bumped the syn, quote, and proc-macro2 to stable
versions.
@Timmmm improved prost-build so that it no longer writes .rs files when they
are unchanged, which improves working with tools like cargo watch in
codebases with prost code generation.
@Hirevo replaced usage of failure with anyhow.
@danburkert bumped the packaged protoc version to 3.11.2.

Many thanks to the generous contributors who have helped out since 0.5.0:

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