deprecate watch and derive

[dai-shi]

Let's focus on valtio-reactive.

[vercel]

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Project	Deployment	Review	Updated (UTC)
valtio	Ready	Preview, Comment	Jan 1, 2026 8:18am

[codesandbox-ci]

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[github-actions]

Size Change: +271 B (+1.82%)

Total Size: 15.2 kB

Filename	Size	Change
./dist/esm/vanilla/utils.mjs	3.84 kB	+135 B (+3.65%)
./dist/vanilla/utils.js	3.88 kB	+136 B (+3.63%)

ℹ️ View Unchanged

Filename	Size
./dist/esm/index.mjs	63 B
./dist/esm/react.mjs	701 B
./dist/esm/react/utils.mjs	257 B
./dist/esm/utils.mjs	68 B
./dist/esm/vanilla.mjs	2.44 kB
./dist/index.js	243 B
./dist/react.js	695 B
./dist/react/utils.js	278 B
./dist/utils.js	248 B
./dist/vanilla.js	2.47 kB

_{compressed-size-action}

[pkg-pr-new]

More templates

• counter
• editor-proxyWithHistory
• valtio-photo-booth-demo
• starter

npm i https://pkg.pr.new/valtio@1190

commit: 37656b6