Time:    time.Date(2018, 4, 17, 20, 00, 32, 0, time.UTC),
				Tags:    []string{"v2.0.2"},
			},
		},
		{
			repo: gitrepo1,
			rev:  "v2.3.4", // badly-named branch (semver should be a tag)
			info: &RevInfo{
				Name:    "76a00fb249b7f93091bc2c89a789dab1fc1bc26f",
				Short:   "76a00fb249b7",
				Version: "76a00fb249b7f93091bc2c89a789dab1fc1bc26f",

			// other known remote tags for the hash. We never use
			// refs/dummy (it's not refs/tags/dummy) and it will be
			// overwritten in the next command, and that's fine.
			ref = hash
			refspec = hash + ":refs/dummy"
		} else {
			// If we do know the ref name, save the mapping locally
			// so that (if it is a tag) it can show up in localTags
			// on a future call. Also, some servers refuse to allow

github.com/coreos/go-oidc/v3 v3.10.0/go.mod h1:5j11xcw0D3+SGxn6Z/WFADsgcWVMyNAlSQupk0KK3ac=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=
github.com/coreos/go-semver v0.3.1/go.mod h1:irMmmIw/7yzSRPWryHsK7EYSg09caPQL03VsM8rvUec=

**FastAPI** は既に多くのアプリケーションやシステムに本番環境で使われています。また、100%のテストカバレッジを維持しています。しかし、活発な開発が続いています。

高頻度で新機能が追加され、定期的にバグが修正され、実装は継続的に改善されています。

これが現在のバージョンがいまだに `0.x.x` な理由であり、それぞれのバージョンは破壊的な変更がなされる可能性があります。これは、<a href="https://semver.org/" class="external-link" target="_blank">セマンティック バージョニング</a>の規則に則っています。

**FastAPI** を使用すると本番用アプリケーションをすぐに作成できますが (すでに何度も経験しているかもしれませんが)、残りのコードが正しく動作するバージョンなのか確認しなければいけません。

## `fastapi` のバージョンを固定

	m.Run()
	return nil
}

var (
	queryRepo   = "vcs-test.golang.org/git/querytest.git"
	queryRepoV2 = queryRepo + "/v2"
	queryRepoV3 = queryRepo + "/v3"

	// Empty version list (no semver tags), not actually empty.
	emptyRepoPath = "vcs-test.golang.org/git/emptytest.git"
)

var queryTests = []struct {
	path    string
	query   string
	current string
	allow   string
	vers    string

github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=

github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=

github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=

 [public_suffix]: https://publicsuffix.org/
 [rfc_2045]: https://tools.ietf.org/html/rfc2045
 [rfc_7231_647]: https://tools.ietf.org/html/rfc7231#section-6.4.7
 [rfc_7692]: https://tools.ietf.org/html/rfc7692
 [semver]: https://semver.org/

In practice there's no limitation to the scheme of the module version.
Timestamps, numbers, special suffixes like `-GA` are all allowed identifiers.
The most widely-used versioning strategy is link:https://semver.org/[semantic versioning].

[[sub::terminology_platform]]
== Platform

A platform is a set of modules aimed to be used together. There are different categories of platforms, corresponding to different use cases: