httpsgithu
diff --git a/.agents/skills/locale-review/SKILL.md b/.agents/skills/locale-review/SKILL.md
diff --git a/.eslintrc.json b/.eslintrc.json
diff --git a/.gitattributes b/.gitattributes
@@ -1,4 +1,3 @@
 # we don't have non-text files, don't take chances with git's text=auto
 * text
-# this file is read by nuget (Windows) tooling, lets keep it happy
-Moment.js.nuspec eol=crlf
+.githooks/* text eol=lf
diff --git a/.githooks/post-checkout b/.githooks/post-checkout
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+branch=$(git symbolic-ref --quiet --short HEAD) || exit 0
+
+if test "$branch" = master; then
+    if test -z "${NO_COLOR+x}" &&
+        { test -n "${FORCE_COLOR+x}" || { test -t 2 && test "${TERM:-dumb}" != dumb; }; }; then
+        printf '\033[33m%s\033[0m\n' \
+            'WARNING: master tracks the latest release; new work belongs on develop.' >&2
+    else
+        printf '%s\n' \
+            'WARNING: master tracks the latest release; new work belongs on develop.' >&2
+    fi
+fi
diff --git a/.githooks/pre-commit b/.githooks/pre-commit
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+branch=$(git symbolic-ref --quiet --short HEAD) || exit 0
+
+if test "$branch" = master; then
+    if test -z "${NO_COLOR+x}" &&
+        { test -n "${FORCE_COLOR+x}" || { test -t 2 && test "${TERM:-dumb}" != dumb; }; }; then
+        printf '\033[31m%s\033[0m\n' \
+            'ERROR: commits on master are not allowed; switch to develop first.' >&2
+    else
+        printf '%s\n' \
+            'ERROR: commits on master are not allowed; switch to develop first.' >&2
+    fi
+    exit 1
+fi
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
@@ -0,0 +1 @@
+* @moment/collaborators
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,109 @@
+name: Bug report
+description: Report a reproducible defect in Moment.js
+title: '[Bug] '
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Moment.js is in maintenance mode and is not accepting new features.
+        Use this form only for reproducible defects in Moment.js core.
+        Reports are assessed individually; submitting a valid defect does not
+        guarantee that a code change will be made.
+
+  - type: checkboxes
+    id: prerequisites
+    attributes:
+      label: Prerequisites
+      options:
+        - label: I searched existing issues for this problem.
+          required: true
+        - label: I read the applicable [documentation](https://momentjs.com/docs/) and [guides](https://momentjs.com/guides/).
+          required: true
+        - label: I reproduced the problem with the latest Moment.js release.
+          required: true
+        - label: I confirmed this belongs to Moment.js core, not [Moment Timezone](https://github.com/moment/moment-timezone/issues), [Luxon](https://github.com/moment/luxon/issues), or the [momentjs.com website](https://github.com/moment/momentjs.com/issues).
+          required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Describe the defect and when it occurs.
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Minimal reproduction
+      description: Provide the smallest complete example that reproduces the problem.
+      render: javascript
+    validations:
+      required: true
+
+  - type: input
+    id: reproduction-link
+    attributes:
+      label: Reproduction link
+      description: Optionally link to a runnable reproduction.
+      placeholder: https://...
+
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual behavior
+      description: Include the exact output or error.
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: Include the exact output you expected and why.
+    validations:
+      required: true
+
+  - type: input
+    id: moment-version
+    attributes:
+      label: Moment.js version
+      placeholder: 2.30.1
+    validations:
+      required: true
+
+  - type: input
+    id: runtime
+    attributes:
+      label: Runtime
+      description: Include the Node.js or browser name and version.
+      placeholder: Node.js 22.22.2 or Chrome 140
+    validations:
+      required: true
+
+  - type: input
+    id: loading
+    attributes:
+      label: Loading method
+      description: Describe how Moment.js is imported or loaded if it is not evident from the code sample.
+      placeholder: npm CommonJS, ESM bundle, or CDN script
+
+  - type: input
+    id: locale
+    attributes:
+      label: Locale
+      description: Include the active locale if it may affect the result.
+      placeholder: en, pt-br, or not applicable
+
+  - type: input
+    id: timezone
+    attributes:
+      label: Time zone
+      description: Include the system time zone or UTC offset if relevant.
+      placeholder: America/New_York, UTC-05:00, or not applicable
+
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional context
+      description: Include relevant dates, dependencies, screenshots, or other details.
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
@@ -0,0 +1,23 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Feature requests are not accepted
+    url: https://momentjs.com/news/
+    about: Moment.js is in maintenance mode and is not accepting new features.
+  - name: Ask a usage question
+    url: https://stackoverflow.com/questions/tagged/momentjs
+    about: Ask for help using Moment.js on Stack Overflow.
+  - name: Ask a question about the project
+    url: https://github.com/moment/moment/discussions
+    about: Ask about the Moment.js project, its maintenance status, or contributing.
+  - name: Report a Moment Timezone issue
+    url: https://github.com/moment/moment-timezone/issues
+    about: Report time zone data and Moment Timezone defects in its own repository.
+  - name: Report a Luxon issue
+    url: https://github.com/moment/luxon/issues
+    about: Report Luxon defects and requests in its own repository.
+  - name: Report a momentjs.com website issue
+    url: https://github.com/moment/momentjs.com/issues
+    about: Report documentation website content and functionality issues in its own repository.
+  - name: Report a security vulnerability
+    url: https://github.com/moment/moment/security/advisories/new
+    about: Privately report a security vulnerability to the maintainers.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
diff --git a/.github/ISSUE_TEMPLATE/locale_report.yml b/.github/ISSUE_TEMPLATE/locale_report.yml
@@ -0,0 +1,76 @@
+name: Locale correction
+description: Report incorrect locale data or locale-specific behavior
+title: '[Locale] '
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Moment.js uses the latest published Unicode CLDR data as its preferred
+        baseline. Differences from CLDR can be accepted when strong evidence
+        shows that another convention is better supported. Sources are helpful
+        but are not required; maintainers will independently validate reports.
+
+  - type: checkboxes
+    id: prerequisites
+    attributes:
+      label: Prerequisites
+      options:
+        - label: I searched existing issues for this locale behavior.
+          required: true
+        - label: I reproduced the behavior with the latest Moment.js release.
+          required: true
+        - label: If this behavior was previously discussed, I addressed the prior decision and explained what has changed.
+          required: true
+
+  - type: input
+    id: locale
+    attributes:
+      label: Locale
+      description: Provide the Moment.js locale identifier.
+      placeholder: pt-br
+    validations:
+      required: true
+
+  - type: textarea
+    id: current-behavior
+    attributes:
+      label: Current behavior
+      description: Provide code or steps and the exact output Moment.js currently produces.
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: Provide the exact expected output.
+    validations:
+      required: true
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Language or cultural context
+      description: Explain the relevant grammar, notation, calendar rule, or other convention.
+    validations:
+      required: true
+
+  - type: textarea
+    id: sources
+    attributes:
+      label: Supporting sources
+      description: Optionally link to CLDR, standards, dictionaries, style guides, official calendars, or evidence of contemporary usage. For a repeated proposal, explain what new context or evidence supports reconsideration.
+
+  - type: input
+    id: moment-version
+    attributes:
+      label: Moment.js version
+      placeholder: 2.30.1
+    validations:
+      required: true
+
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional context
+      description: Include any other forms, dates, or boundary cases affected.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -0,0 +1,47 @@
+name: CI
+
+on:
+  workflow_call:
+  push:
+    branches: ['develop']
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - lts/*
+          - lts/-1
+          - latest
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Use pnpm
+        uses: pnpm/action-setup@v6
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v7
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Lint
+        run: pnpm lint
+
+      - name: Build
+        run: pnpm build
+
+      - name: Test
+        run: pnpm test
+
+      - name: Test TypeScript declarations
+        run: pnpm test:typescript