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fix(next): fix hmr, bump minimum required next.js 16 version to 16.2.2#16202

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fix/next-hmr
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fix(next): fix hmr, bump minimum required next.js 16 version to 16.2.2#16202
AlessioGr wants to merge 7 commits intomainfrom
fix/next-hmr

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@AlessioGr AlessioGr commented Apr 7, 2026

Next.js <16.2.2 requires the --no-server-fast-refresh flag appended to the next dev command in order for HMR to work. In 16.2.2, we can now set experimental.enableServerFastRefresh to disable server fast refresh, which fixes HMR for all users, without requiring a new flag.

This PR:

  • bumps the minimum required Next.js 16 version to 16.2.2
  • sets experimental.enableServerFastRefresh if Next.js >=16.2.2 is detected
  • bumps Next.js to 16.2.2 in our monorepo and all templates
  • logs a console warning for all users using Next.js 16 - 16.2.1

After release, we'll remove the --no-server-fast-refresh flag from our templates in a separate PR. We cannot do it in this PR, as a newer Payload version is required


@AlessioGr AlessioGr requested a review from denolfe as a code owner April 7, 2026 19:29
@AlessioGr AlessioGr enabled auto-merge (squash) April 7, 2026 19:35
@AlessioGr AlessioGr requested a review from DanRibbens April 7, 2026 19:35
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github-actions bot commented Apr 7, 2026

📦 esbuild Bundle Analysis for payload

This analysis was generated by esbuild-bundle-analyzer. 🤖

Meta File Out File Size (raw) Note
packages/next/meta_index.json esbuild/index.js 984.15 KB 🆕 Added
packages/payload/meta_index.json esbuild/index.js 1.38 MB 🆕 Added
packages/payload/meta_shared.json esbuild/exports/shared.js 191.15 KB 🆕 Added
packages/richtext-lexical/meta_client.json esbuild/exports/client_optimized/index.js 280.56 KB 🆕 Added
packages/ui/meta_client.json esbuild/exports/client_optimized/index.js 1.18 MB 🆕 Added
packages/ui/meta_shared.json esbuild/exports/shared_optimized/index.js 16.32 KB 🆕 Added
Largest paths These visualization shows top 20 largest paths in the bundle.

Meta file: packages/next/meta_index.json, Out file: esbuild/index.js

Path Size
../../node_modules ${{\color{Goldenrod}{ ████████████████████▌ }}}$ 82.4%, 807.46 KB
dist/views/Version ${{\color{Goldenrod}{ █▎ }}}$ 5.3%, 51.49 KB
dist/views/Dashboard ${{\color{Goldenrod}{ ▌ }}}$ 2.2%, 21.37 KB
dist/views/Document ${{\color{Goldenrod}{ ▍ }}}$ 1.7%, 16.59 KB
dist/views/List ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 11.38 KB
dist/views/Root ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 9.03 KB
dist/views/Versions ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 6.17 KB
dist/views/API ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 6.13 KB
dist/elements/Nav ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 5.96 KB
dist/views/Account ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 5.55 KB
dist/elements/DocumentHeader ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 4.81 KB
dist/views/Login ${{\color{Goldenrod}{ }}}$ 0.4%, 4.40 KB
dist/layouts/Root ${{\color{Goldenrod}{ }}}$ 0.3%, 3.18 KB
dist/views/ForgotPassword ${{\color{Goldenrod}{ }}}$ 0.3%, 3.13 KB
dist/views/CreateFirstUser ${{\color{Goldenrod}{ }}}$ 0.3%, 2.81 KB
dist/templates/Default ${{\color{Goldenrod}{ }}}$ 0.3%, 2.64 KB
dist/views/BrowseByFolder ${{\color{Goldenrod}{ }}}$ 0.3%, 2.61 KB
dist/views/CollectionFolders ${{\color{Goldenrod}{ }}}$ 0.2%, 2.44 KB
dist/views/ResetPassword ${{\color{Goldenrod}{ }}}$ 0.2%, 2.40 KB
dist/views/Logout ${{\color{Goldenrod}{ }}}$ 0.2%, 1.94 KB
(other) ${{\color{Goldenrod}{ ████▍ }}}$ 17.6%, 172.01 KB

Meta file: packages/payload/meta_index.json, Out file: esbuild/index.js

Path Size
../../node_modules ${{\color{Goldenrod}{ █████████████████▏ }}}$ 68.7%, 942.76 KB
dist/fields/hooks ${{\color{Goldenrod}{ ▊ }}}$ 3.2%, 44.01 KB
dist/collections/operations ${{\color{Goldenrod}{ ▋ }}}$ 2.9%, 39.93 KB
dist/versions/migrations ${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 18.50 KB
dist/auth/operations ${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 15.63 KB
dist/fields/config ${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 14.09 KB
dist/globals/operations ${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 13.28 KB
dist/utilities/configToJSONSchema.js ${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 13.13 KB
dist/queues/operations ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 12.80 KB
dist/fields/validations.js ${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 10.54 KB
dist/bin/generateImportMap ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.87 KB
dist/collections/config ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.37 KB
dist/config/orderable ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.00 KB
dist/index.js ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.69 KB
dist/uploads/fetchAPI-multipart ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.67 KB
dist/database/migrations ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 7.54 KB
dist/config/sanitize.js ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 6.26 KB
dist/collections/endpoints ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 6.23 KB
dist/auth/strategies ${{\color{Goldenrod}{ }}}$ 0.4%, 5.50 KB
dist/queues/config ${{\color{Goldenrod}{ }}}$ 0.4%, 5.34 KB
(other) ${{\color{Goldenrod}{ ███████▊ }}}$ 31.3%, 430.14 KB

Meta file: packages/payload/meta_shared.json, Out file: esbuild/exports/shared.js

Path Size
../../node_modules ${{\color{Goldenrod}{ ███████████████████▊ }}}$ 79.3%, 148.72 KB
dist/fields/validations.js ${{\color{Goldenrod}{ █▍ }}}$ 5.6%, 10.54 KB
dist/config/orderable ${{\color{Goldenrod}{ ▍ }}}$ 1.7%, 3.13 KB
dist/fields/baseFields ${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 2.79 KB
dist/utilities/deepCopyObject.js ${{\color{Goldenrod}{ ▎ }}}$ 1.4%, 2.54 KB
dist/auth/cookies.js ${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 1.55 KB
dist/utilities/flattenTopLevelFields.js ${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 1.42 KB
dist/fields/config ${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 1.28 KB
dist/utilities/getVersionsConfig.js ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 1.04 KB
dist/utilities/flattenAllFields.js ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 943 B
dist/folders/utils ${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 916 B
dist/utilities/unflatten.js ${{\color{Goldenrod}{ }}}$ 0.4%, 779 B
dist/utilities/sanitizeUserDataForEmail.js ${{\color{Goldenrod}{ }}}$ 0.4%, 713 B
dist/utilities/getFieldPermissions.js ${{\color{Goldenrod}{ }}}$ 0.3%, 651 B
dist/collections/config ${{\color{Goldenrod}{ }}}$ 0.3%, 570 B
dist/bin/generateImportMap ${{\color{Goldenrod}{ }}}$ 0.3%, 561 B
dist/auth/sessions.js ${{\color{Goldenrod}{ }}}$ 0.3%, 525 B
dist/fields/getFieldPaths.js ${{\color{Goldenrod}{ }}}$ 0.3%, 485 B
dist/errors/APIError.js ${{\color{Goldenrod}{ }}}$ 0.2%, 438 B
dist/utilities/getSafeRedirect.js ${{\color{Goldenrod}{ }}}$ 0.2%, 423 B
(other) ${{\color{Goldenrod}{ █████▏ }}}$ 20.7%, 38.75 KB

Meta file: packages/richtext-lexical/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Path Size
dist/features/blocks ${{\color{Goldenrod}{ ███▏ }}}$ 12.8%, 35.38 KB
dist/lexical/plugins ${{\color{Goldenrod}{ ██▉ }}}$ 11.5%, 32.00 KB
dist/lexical/ui ${{\color{Goldenrod}{ ██▏ }}}$ 8.8%, 24.36 KB
dist/features/experimental_table ${{\color{Goldenrod}{ ██▏ }}}$ 8.5%, 23.70 KB
dist/packages/@lexical ${{\color{Goldenrod}{ █▋ }}}$ 6.8%, 18.99 KB
dist/features/link ${{\color{Goldenrod}{ █▋ }}}$ 6.6%, 18.24 KB
dist/features/toolbars ${{\color{Goldenrod}{ █▍ }}}$ 5.8%, 16.08 KB
dist/features/upload ${{\color{Goldenrod}{ █▎ }}}$ 5.0%, 13.77 KB
dist/features/textState ${{\color{Goldenrod}{ █ }}}$ 4.0%, 11.08 KB
dist/features/relationship ${{\color{Goldenrod}{ ▊ }}}$ 3.3%, 9.03 KB
dist/lexical/utils ${{\color{Goldenrod}{ ▊ }}}$ 3.1%, 8.49 KB
dist/features/debug ${{\color{Goldenrod}{ ▋ }}}$ 2.7%, 7.39 KB
dist/utilities/fieldsDrawer ${{\color{Goldenrod}{ ▋ }}}$ 2.6%, 7.15 KB
dist/features/converters ${{\color{Goldenrod}{ ▋ }}}$ 2.5%, 7.05 KB
dist/lexical/config ${{\color{Goldenrod}{ ▍ }}}$ 1.8%, 5.08 KB
dist/features/lists ${{\color{Goldenrod}{ ▍ }}}$ 1.8%, 5.00 KB
dist/features/format ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 3.46 KB
dist/lexical/LexicalEditor.js ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 3.22 KB
dist/lexical/theme ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 2.62 KB
dist/field/Field.js ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 2.59 KB
(other) ${{\color{Goldenrod}{ █████████████████████▊ }}}$ 87.2%, 241.93 KB

Meta file: packages/ui/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Path Size
../../node_modules ${{\color{Goldenrod}{ ████████████▎ }}}$ 49.3%, 579.02 KB
dist/elements/FolderView ${{\color{Goldenrod}{ ▋ }}}$ 2.5%, 29.37 KB
dist/elements/BulkUpload ${{\color{Goldenrod}{ ▌ }}}$ 2.4%, 27.80 KB
dist/elements/WhereBuilder ${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 17.38 KB
dist/views/Edit ${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 17.30 KB
dist/forms/Form ${{\color{Goldenrod}{ ▎ }}}$ 1.4%, 15.86 KB
dist/fields/Relationship ${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 15.78 KB
dist/elements/Table ${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 15.77 KB
dist/fields/Upload ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 14.24 KB
dist/fields/Blocks ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 13.89 KB
dist/elements/QueryPresets ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 10.36 KB
dist/elements/PublishButton ${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 9.09 KB
dist/providers/Folders ${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 8.47 KB
dist/elements/HTMLDiff ${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 8.38 KB
dist/elements/ListHeader ${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 7.99 KB
dist/fields/Array ${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 7.73 KB
dist/views/CollectionFolder ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.50 KB
dist/views/List ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.35 KB
dist/elements/ReactSelect ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.33 KB
dist/elements/LivePreview ${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.02 KB
(other) ${{\color{Goldenrod}{ ████████████▋ }}}$ 50.7%, 594.91 KB

Meta file: packages/ui/meta_shared.json, Out file: esbuild/exports/shared_optimized/index.js

Path Size
dist/graphics/Logo ${{\color{Goldenrod}{ █████ }}}$ 20.0%, 3.12 KB
../../node_modules ${{\color{Goldenrod}{ ████▎ }}}$ 17.0%, 2.65 KB
dist/graphics/Icon ${{\color{Goldenrod}{ ██▍ }}}$ 9.8%, 1.52 KB
dist/utilities/formatDocTitle ${{\color{Goldenrod}{ ██▏ }}}$ 8.5%, 1.32 KB
dist/providers/TableColumns ${{\color{Goldenrod}{ █▍ }}}$ 5.5%, 862 B
dist/utilities/groupNavItems.js ${{\color{Goldenrod}{ █▎ }}}$ 5.2%, 814 B
dist/utilities/getGlobalData.js ${{\color{Goldenrod}{ █▏ }}}$ 4.9%, 762 B
dist/utilities/api.js ${{\color{Goldenrod}{ █▏ }}}$ 4.8%, 756 B
dist/elements/Translation ${{\color{Goldenrod}{ ▊ }}}$ 3.2%, 493 B
dist/utilities/handleTakeOver.js ${{\color{Goldenrod}{ ▋ }}}$ 2.8%, 440 B
dist/utilities/traverseForLocalizedFields.js ${{\color{Goldenrod}{ ▋ }}}$ 2.6%, 399 B
dist/elements/withMergedProps ${{\color{Goldenrod}{ ▌ }}}$ 2.2%, 339 B
dist/utilities/getVisibleEntities.js ${{\color{Goldenrod}{ ▌ }}}$ 2.1%, 329 B
dist/utilities/getNavGroups.js ${{\color{Goldenrod}{ ▍ }}}$ 1.9%, 301 B
dist/elements/WithServerSideProps ${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 232 B
dist/utilities/handleGoBack.js ${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 180 B
dist/fields/mergeFieldStyles.js ${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 159 B
dist/utilities/handleBackToDashboard.js ${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 152 B
dist/forms/Form ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 147 B
dist/utilities/abortAndIgnore.js ${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 146 B
(other) ${{\color{Goldenrod}{ ████████████████████ }}}$ 80.0%, 12.51 KB
Details

Next to the size is how much the size has increased or decreased compared with the base branch of this PR.

  • ‼️: Size increased by 20% or more. Special attention should be given to this.
  • ⚠️: Size increased in acceptable range (lower than 20%).
  • ✅: No change or even downsized.
  • 🗑️: The out file is deleted: not found in base branch.
  • 🆕: The out file is newly found: will be added to base branch.

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