diff --git a/.github/actions/setup-deno/action.yaml b/.github/actions/setup-deno/action.yaml
index 2cf9a04a..6c6f30b6 100644
--- a/.github/actions/setup-deno/action.yaml
+++ b/.github/actions/setup-deno/action.yaml
@@ -6,4 +6,4 @@ runs:
   steps:
   - uses: denoland/setup-deno@v2
     with:
-      deno-version: 2.6.10  # Keep in sync with mise.toml
+      deno-version: 2.7.1  # Keep in sync with mise.toml
diff --git a/CHANGES.md b/CHANGES.md
index 407739b5..6189ca7a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,14 @@ Version 2.1.0
 
 To be released.
 
+### @fedify/init
+
+ -  Changed `fedify init` to add `"temporal"` to `deno.json`'s `"unstable"`
+    field only when the installed Deno version is earlier than 2.7.0.
+    On Deno 2.7.0 or later, it is no longer added.
+ -  `fedify init` now omits the `"unstable"` field entirely when no unstable
+    feature is required for the generated Deno project.
+
 ### @fedify/vocab
 
  -  Fixed `Endpoints.toJsonLd()` to no longer emit invalid
diff --git a/deno.json b/deno.json
index c2d6e0ae..cb95879e 100644
--- a/deno.json
+++ b/deno.json
@@ -67,8 +67,7 @@
   "unstable": [
     "fs",
     "kv",
-    "process",
-    "temporal"
+    "process"
   ],
   "exclude": [
     "**/pnpm-lock.yaml",
@@ -98,7 +97,7 @@
     "codegen": "deno task -f @fedify/vocab compile",
     "check-versions": "deno run --allow-read --allow-write scripts/check_versions.ts",
     "check-all": {
-      "command": "deno fmt --check && deno lint && deno check --unstable-temporal $(deno eval 'import m from \"./deno.json\" with { type: \"json\" }; for (let p of m.workspace) console.log(p)')",
+      "command": "deno fmt --check && deno lint && deno check $(deno eval 'import m from \"./deno.json\" with { type: \"json\" }; for (let p of m.workspace) console.log(p)')",
       "dependencies": [
         "check-versions",
         "codegen"
diff --git a/docs/cli.md b/docs/cli.md
index fd26d7e5..fd604877 100644
--- a/docs/cli.md
+++ b/docs/cli.md
@@ -69,7 +69,7 @@ command:
 ~~~~ sh [Linux]
 deno install \
   -gA \
-  --unstable-fs --unstable-kv --unstable-temporal \
+  --unstable-fs --unstable-kv \
   -n fedify \
   jsr:@fedify/cli
 ~~~~
@@ -77,7 +77,7 @@ deno install \
 ~~~~ sh [macOS]
 deno install \
   -gA \
-  --unstable-fs --unstable-kv --unstable-temporal \
+  --unstable-fs --unstable-kv \
   -n fedify \
   jsr:@fedify/cli
 ~~~~
@@ -85,13 +85,16 @@ deno install \
 ~~~~ powershell [Windows]
 deno install `
   -gA `
-  --unstable-fs --unstable-kv --unstable-temporal `
+  --unstable-fs --unstable-kv `
   -n fedify `
   jsr:@fedify/cli
 ~~~~
 
 :::
 
+On Deno versions earlier than 2.7.0, add `--unstable-temporal` to the install
+command above.
+
 [Deno]: https://deno.com/
 
 ### Downloading the executable
diff --git a/docs/install.md b/docs/install.md
index b06c43bc..fb905fe0 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -36,11 +36,14 @@ bun install -g @fedify/cli
 ~~~~
 
 ~~~~ sh [Deno]
-deno install -gA --unstable-fs --unstable-kv --unstable-temporal -n fedify jsr:@fedify/cli
+deno install -gA --unstable-fs --unstable-kv -n fedify jsr:@fedify/cli
 ~~~~
 
 :::
 
+If you use Deno earlier than 2.7.0, add `--unstable-temporal` to the Deno
+installation command above.
+
 There are other ways to install the `fedify` command.  Please refer to the
 [*Installation* section](./cli.md#installation) in the *CLI toolchain* docs.
 
@@ -115,9 +118,9 @@ via the following command:
 deno add jsr:@fedify/fedify
 ~~~~
 
-Since Fedify requires [`Temporal`] API, which is an unstable feature in Deno as
-of November 2024, you need to add the `"temporal"` to the `"unstable"` field of
-the *deno.json* file:
+Fedify requires the [`Temporal`] API.  On Deno 2.7.0 or later, it is stable and
+no extra setting is needed.  On Deno versions earlier than 2.7.0, add
+`"temporal"` to the `"unstable"` field in *deno.json*:
 
 ~~~~ json{5}
 {
diff --git a/docs/tutorial/basics.md b/docs/tutorial/basics.md
index 503d9eaa..64b85f6a 100644
--- a/docs/tutorial/basics.md
+++ b/docs/tutorial/basics.md
@@ -55,7 +55,7 @@ Let's create a new project directory and initialize a new project:
 ~~~~ sh [Deno]
 mkdir follow-server
 cd follow-server/
-echo '{ "unstable": ["kv", "temporal"] }' > deno.json
+echo '{ "unstable": ["kv"] }' > deno.json
 deno add jsr:@fedify/fedify
 ~~~~
 
@@ -84,7 +84,7 @@ The above commands will create a *deno.json* (in case of Deno) or *package.json*
 
 ~~~~ json [Deno]
 {
-  "unstable": ["kv", "temporal"],
+  "unstable": ["kv"],
   "imports": {
     "@fedify/fedify": "jsr:@fedify/fedify@^1.1.0"
   }
@@ -120,10 +120,9 @@ The above commands will create a *deno.json* (in case of Deno) or *package.json*
 :::
 
 > [!NOTE]
-> The [`"unstable"`] field in the *deno.json* file is required because Fedify
-> uses [`Temporal`] API, which is an unstable feature in Deno as of November
-> 2024.  By adding `"temporal"` to the `"unstable"` field, you can use the
-> Fedify framework without any issues.
+> If you use Deno 2.7.0 or later, you do not need any extra setting for
+> [`Temporal`].  If you use Deno earlier than 2.7.0, add `"temporal"` to the
+> [`"unstable"`] field in *deno.json*.
 
 > [!NOTE]
 > In Bun and Node.js, we recommend adding [`"type": "module"`] to the
@@ -143,8 +142,8 @@ The above commands will create a *deno.json* (in case of Deno) or *package.json*
 [Deno]: https://deno.com/
 [Bun]: https://bun.sh/
 [Node.js]: https://nodejs.org/
-[`"unstable"`]: https://docs.deno.com/runtime/manual/tools/unstable_flags/#configuring-flags-in-deno.json
 [`Temporal`]: https://tc39.es/proposal-temporal/docs/
+[`"unstable"`]: https://docs.deno.com/runtime/manual/tools/unstable_flags/#configuring-flags-in-deno.json
 [`"type": "module"`]: https://nodejs.org/api/packages.html#type
 [ESM]: https://nodejs.org/api/esm.html
 [CommonJS]: https://nodejs.org/docs/latest/api/modules.html
diff --git a/mise.toml b/mise.toml
index 6ff79338..f23e49f0 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,6 +1,6 @@
 [tools]
 bun = "1.2.22"
-deno = "2.6.10"
+deno = "2.7.1"
 node = "22"
 pnpm = "10.28.0"
 
@@ -59,7 +59,7 @@ run = "deno lint"
 
 [tasks."check:types"]
 description = "Check TypeScript types"
-run = "deno check --unstable-temporal $(deno eval 'import m from \"./deno.json\" with { type: \"json\" }; for (let p of m.workspace) console.log(p)')"
+run = "deno check $(deno eval 'import m from \"./deno.json\" with { type: \"json\" }; for (let p of m.workspace) console.log(p)')"
 
 [tasks."check:md"]
 description = "Check Markdown formatting"
diff --git a/packages/cli/README.md b/packages/cli/README.md
index ea24cbc5..b731eb26 100644
--- a/packages/cli/README.md
+++ b/packages/cli/README.md
@@ -52,7 +52,7 @@ command:
 # Linux/macOS
 deno install \
   -A \
-  --unstable-fs --unstable-kv --unstable-temporal \
+  --unstable-fs --unstable-kv \
   -n fedify \
   jsr:@fedify/cli
 ~~~~
@@ -61,11 +61,14 @@ deno install \
 # Windows
 deno install `
   -A `
-  --unstable-fs --unstable-kv --unstable-temporal `
+  --unstable-fs --unstable-kv `
   -n fedify `
   jsr:@fedify/cli
 ~~~~
 
+On Deno versions earlier than 2.7.0, add `--unstable-temporal` to the install
+command above.
+
 [Deno]: https://deno.com/
 
 ### Downloading the executable
diff --git a/packages/init/src/action/configs.ts b/packages/init/src/action/configs.ts
index 2d58b87b..9726852c 100644
--- a/packages/init/src/action/configs.ts
+++ b/packages/init/src/action/configs.ts
@@ -7,7 +7,9 @@ import {
   pipe,
   toArray,
 } from "@fxts/core/index.js";
+import { getLogger } from "@logtape/logtape";
 import { uniq } from "es-toolkit";
+import { execFileSync } from "node:child_process";
 import { realpathSync } from "node:fs";
 import { join as joinPath, relative } from "node:path";
 import biome from "../json/biome.json" with { type: "json" };
@@ -22,6 +24,8 @@ import { merge } from "../utils.ts";
 import { PACKAGES_PATH } from "./const.ts";
 import { getDependencies, getDevDependencies, joinDepsReg } from "./deps.ts";
 
+const logger = getLogger(["fedify", "init", "action", "configs"]);
+
 /**
  * Loads Deno configuration object with compiler options, unstable features, and tasks.
  * Combines unstable features required by KV store and message queue with framework-specific options.
@@ -31,30 +35,81 @@ import { getDependencies, getDevDependencies, joinDepsReg } from "./deps.ts";
  */
 export const loadDenoConfig = (
   data: InitCommandData,
-) => ({
-  path: "deno.json",
-  data: {
-    ...pick(["compilerOptions", "tasks"], data.initializer),
-    unstable: getUnstable(data),
-    nodeModulesDir: "auto",
-    imports: joinDepsReg("deno")(getDependencies(data)),
-    lint: { plugins: ["jsr:@fedify/lint"] },
-    ...(data.testMode ? { links: getLinks(data) } : {}),
-  },
-});
+) => {
+  const unstable = getUnstable(data);
+  return {
+    path: "deno.json",
+    data: {
+      ...pick(["compilerOptions", "tasks"], data.initializer),
+      ...(unstable.length > 0 ? { unstable } : {}),
+      nodeModulesDir: "auto",
+      imports: joinDepsReg("deno")(getDependencies(data)),
+      lint: { plugins: ["jsr:@fedify/lint"] },
+      ...(data.testMode ? { links: getLinks(data) } : {}),
+    },
+  };
+};
 
 const getUnstable = <T extends Pick<InitCommandData, "kv" | "mq">>({
   kv: { denoUnstable: kv = [] },
   mq: { denoUnstable: mq = [] },
 }: T) =>
   pipe(
-    ["temporal"],
+    needsUnstableTemporal() ? ["temporal"] : [],
     concat(kv),
     concat(mq),
     toArray,
     uniq,
   );
 
+const TEMPORAL_STABLE_FROM = [2, 7, 0] as const;
+
+const needsUnstableTemporal = (): boolean => {
+  const version = getInstalledDenoVersion();
+  if (version == null) return true;
+  return compareVersions(version, TEMPORAL_STABLE_FROM) < 0;
+};
+
+const getInstalledDenoVersion = (): [number, number, number] | null => {
+  const deno = getDenoVersionFromRuntime();
+  if (deno != null) return deno;
+  try {
+    const output = execFileSync("deno", ["--version"], {
+      encoding: "utf8",
+      stdio: ["ignore", "pipe", "ignore"],
+    });
+    const version = output.match(/^deno\s+(\d+)\.(\d+)\.(\d+)/m);
+    if (version == null) return null;
+    return [Number(version[1]), Number(version[2]), Number(version[3])];
+  } catch (error) {
+    logger.debug(
+      "Failed to get Deno version by executing `deno --version`: {error}",
+      { error },
+    );
+    return null;
+  }
+};
+
+const getDenoVersionFromRuntime = (): [number, number, number] | null => {
+  const deno = (globalThis as { Deno?: { version?: { deno?: string } } }).Deno
+    ?.version?.deno;
+  if (deno == null) return null;
+  const version = deno.match(/^(\d+)\.(\d+)\.(\d+)/);
+  if (version == null) return null;
+  return [Number(version[1]), Number(version[2]), Number(version[3])];
+};
+
+const compareVersions = (
+  a: readonly [number, number, number],
+  b: readonly [number, number, number],
+): number => {
+  for (let i = 0; i < a.length; i++) {
+    if (a[i] < b[i]) return -1;
+    if (a[i] > b[i]) return 1;
+  }
+  return 0;
+};
+
 const getLinks = <
   T extends Pick<InitCommandData, "kv" | "mq" | "initializer" | "dir">,
 >({ kv, mq, initializer, dir }: T) =>