Sourced from protobuf's changelog.

Changelog

Changelog after version 3.0.0 lives in https://github.com/stepancheg/rust-protobuf/blob/master/CHANGELOG.md.

[3.0.0] - 2022-05-01

• New stable version released.

[3.0.0-alpha.14] - 2022-05-01

• JSON support is moved into a separate crate protobuf-json-mapping
• Generated code for well known types is more similar to regular protobuf now (well known type modules are now placed as is in well_known_types module instead of being flattened).
• file_descriptor_proto() function is private now in generated code. Descriptor can be obtained by calling file_descriptor().proto().
• file_descriptor() now returns &'static FileDescriptor
• Hide UnknownValues from public API (keep UnknownFields)

[3.0.0-alpha.13] - 2022-05-01

• More efficient reflective operations
• Fewer internals exposed from public API (e.g. ProtobufType is no longer public)

[3.0.0-alpha.12] - 2022-04-30

• keywords are now escaped with _ suffix
• generate trivial is_initialized functions when possible

[3.0.0-alpha.11] - 2022-04-29

• all fields are public now in generated messages
• protobuf-support crate added. This crate contains utilities shared by other protobuf crates. This crate has no public API.

[3.0.0-alpha.10] - 2022-04-11

• remove expose_oneof codegen option (it is on by default for a long time)
• remove unused serde-related options from rustproto.proto
• in generated code, enum variant names are converted to camel case
• generate SpecialFields field in messages instead of a pair (unknown_fields, cached_size)
• reflection operations like nested_messages now return iterator instead of Vec
• replace fn Enum::values() with const Enum::VALUES
• remove EnumFull::enum_descriptor(), does not provide much value over enum_descriptor_static
• rename EnumFull::enum_descriptor_static -> enum_descriptor
• fix EnumFull::descriptor for enums with allow_alias
• rename MessageDescriptor::enums to nested_enums
• rename MessageDescriptor::descriptor_static to descriptor
• add EnumDescriptor::enclosing_message()
• Message now requires PartialEq

... (truncated)

• 0617bf6 Bump version to 3.4.0
• 692f0a4 fix: fixes issue #680
• 7769205 Bump version to 3.3.0
• 047844e Mute warnings
• 4620a1e Mute warnings
• 0470560 Mute warnings
• d2133c5 Mute a warning
• 6663ee5 regenerate
• 35c51b2 fix: writing insertion before all derives
• 48cc85e bugfix: use extra args in parser
• Additional commits viewable in compare view

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