bufbuild/buf v1.0.0-rc1 on GitHub

This is our first v1.0 release candidate. This release largely concentrates on erroring for
already-deprecated commands and flags.

At Buf, we take compatibility very seriously. When we say v1.0, we mean it - we hope buf will be
stable on v1 for the next decade, and if there is something we want to change, it is our responsibility to
make sure that we don't break you, not your responsibility to change because of us. We have learned
a lot about buf usage in the last two years of our beta, and have deprecated flags and commands as
we go, but for v1.0, we are removing the deprecated items to make sure we have a clean setup going forward.

All commands and flags have been printing warnings for a long time, and have an easy migration path.
Simply update the command or flag, and you'll be good to go:

Removed the buf login command in favor of buf registry login.
Removed the buf logout command in favor of buf registry logout.
Removed the buf mod init command in favor of buf config init.
Removed the --name and --dep flags in buf config init.
Moved the output of --version from stderr to stdout.
Moved the output of --help and help from stderr to stdout.
From v0.55.0: The version key in all configuration files (buf.yaml, buf.gen.yaml, buf.work.yaml) is now required.
From v0.45.0: Removed the buf beta config init command in favor of buf config init.
From v0.45.0: Removed the buf beta mod export command in favor of buf export.
From v0.45.0: Removed the buf beta mod init command in favor of buf config init.
From v0.45.0: Removed the buf beta mod update command in favor of buf mod update.
From v0.45.0: Removed the buf beta mod clear-cache command in favor of buf mod clear-cache.
From v0.45.0: Removed the buf beta push command in favor of buf push.
From v0.34.0: Removed the buf check breaking command in favor of buf breaking.
From v0.34.0: Removed the buf check lint command in favor of buf lint.
From v0.34.0: Removed the buf check ls-lint-checkers command in favor of buf config ls-lint-rules.
From v0.34.0: Removed the buf check ls-breaking-checkers command in favor of buf config ls-breaking-rules.
From v0.31.0: Removed the --file flag on buf build in favor of the --path flag.
From v0.31.0: Removed the --file flag on buf lint in favor of the --path flag.
From v0.31.0: Removed the --file flag on buf breaking in favor of the --path flag.
From v0.31.0: Removed the --file flag on buf generate in favor of the --path flag.
From v0.31.0: Removed the --file flag on buf export in favor of the --path flag.
From v0.29.0: Removed the --source flag on buf build in favor of the first positional parameter.
From v0.29.0: Removed the --source-config flag on buf build in favor of the --config flag.
From v0.29.0: Removed the --input flag on buf lint in favor of the first positional parameter.
From v0.29.0: Removed the --input-config flag on buf lint in favor of the --config flag.
From v0.29.0: Removed the --input flag on buf breaking in favor of the first positional parameter.
From v0.29.0: Removed the --input-config flag on buf breaking in favor of the --config flag.
From v0.29.0: Removed the --against-input flag on buf breaking in favor of the --against flag.
From v0.29.0: Removed the --against-input-config flag on buf breaking in favor of the --against-config flag.
From v0.29.0: Removed the --input flag on buf generate in favor of the first positional parameter.
From v0.29.0: Removed the --input-config flag on buf generate in favor of the --config flag.
From v0.29.0: Removed the --input flag on buf ls-files in favor of the first positional parameter.
From v0.29.0: Removed the --input-config flag on buf ls-files in favor of the --config flag.
From v0.29.0: Removed the buf image build command in favor of buf build.
From v0.29.0: Removed the buf image convert command.
From v0.29.0: Removed the buf beta image convert command.
From v0.23.0: Removed the buf experimental image convert command.
From v0.52.0 and v0.34.0: Complete deletion protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint, which have been moved to protoc-gen-buf-breaking and protoc-gen-buf-lint.

In January 2021 (v0.34.0), protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint were deprecated and scheduled for removal for v1.0. In August 2021 (v0.52.0), we began returning error for every invocation of protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint. This release completes the deletion process.

The only migration necessary is to change your installation and invocation from protoc-gen-buf-check-breaking to protoc-gen-buf-breaking and protoc-gen-buf-check-lint to protoc-gen-buf-lint. These can be installed in the exact same manner, whether from GitHub Releases, Homebrew, AUR, or direct Go installation:

# instead of go get github.com/bufbuild/buf/cmd/protoc-gen-buf-check-breaking
go get github.com/bufbuild/buf/cmd/protoc-gen-buf-breaking
# instead of curl -sSL https://github.com/bufbuild/buf/releases/download/v0.57.0/protoc-gen-buf-check-breaking-Linux-x86_64
curl -sSL https://github.com/bufbuild/buf/releases/download/v0.57.0/protoc-gen-buf-breaking-Linux-x86_64