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[FlightReply] Type hardening and performance improvements#36425

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eps1lon merged 1 commit intofacebook:mainfrom
eps1lon:sebbie/of-types-and-perf
May 6, 2026
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[FlightReply] Type hardening and performance improvements#36425
eps1lon merged 1 commit intofacebook:mainfrom
eps1lon:sebbie/of-types-and-perf

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@eps1lon eps1lon commented May 6, 2026

This fixes security vulnerabilities in Server Functions.

@eps1lon @unstubbable
[FlightReply] Type hardening and performance improvements
e0cd2b1 
Co-authored-by: Hendrik Liebau <mail@hendrik-liebau.de>
@meta-cla meta-cla Bot added the CLA Signed label May 6, 2026
@github-actions github-actions Bot added the React Core Team Opened by a member of the React Core Team label May 6, 2026
@eps1lon eps1lon marked this pull request as ready for review May 6, 2026 17:34
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react-sizebot commented May 6, 2026

Comparing: 9635257...e0cd2b1

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable/react-dom/cjs/react-dom.production.js = 6.84 kB 6.84 kB = 1.88 kB 1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js = 612.85 kB 612.85 kB = 108.29 kB 108.29 kB
oss-experimental/react-dom/cjs/react-dom.production.js = 6.84 kB 6.84 kB = 1.88 kB 1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js = 678.78 kB 678.78 kB = 119.26 kB 119.26 kB
facebook-www/ReactDOM-prod.classic.js = 699.20 kB 699.20 kB = 122.82 kB 122.82 kB
facebook-www/ReactDOM-prod.modern.js = 689.51 kB 689.51 kB = 121.21 kB 121.21 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show
Name +/- Base Current +/- gzip Base gzip Current gzip
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.production.js +0.98% 118.37 kB 119.53 kB +1.19% 23.65 kB 23.93 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.production.js +0.98% 118.37 kB 119.53 kB +1.19% 23.65 kB 23.93 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.production.js +0.96% 120.17 kB 121.32 kB +1.20% 24.01 kB 24.30 kB
oss-stable-semver/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.94% 114.38 kB 115.46 kB +0.98% 23.12 kB 23.35 kB
oss-stable/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.94% 114.38 kB 115.46 kB +0.98% 23.12 kB 23.35 kB
oss-stable-semver/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.production.js +0.93% 124.24 kB 125.40 kB +1.10% 24.59 kB 24.86 kB
oss-stable/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.production.js +0.93% 124.24 kB 125.40 kB +1.10% 24.59 kB 24.86 kB
oss-experimental/react-server-dom-esm/cjs/react-server-dom-esm-server.node.production.js +0.93% 116.18 kB 117.26 kB +0.97% 23.49 kB 23.71 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.92% 125.29 kB 126.44 kB +1.11% 24.82 kB 25.10 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.92% 125.29 kB 126.44 kB +1.11% 24.82 kB 25.10 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.92% 125.30 kB 126.46 kB +1.09% 24.82 kB 25.09 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.92% 125.30 kB 126.46 kB +1.09% 24.82 kB 25.09 kB
oss-experimental/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.production.js +0.92% 126.03 kB 127.19 kB +1.10% 24.96 kB 25.24 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.production.js +0.91% 127.08 kB 128.24 kB +1.10% 25.19 kB 25.47 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.production.js +0.91% 127.09 kB 128.25 kB +1.08% 25.19 kB 25.46 kB
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.production.js +0.80% 111.59 kB 112.48 kB +0.98% 22.58 kB 22.80 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.production.js +0.80% 111.59 kB 112.48 kB +0.98% 22.58 kB 22.80 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.production.js +0.78% 113.39 kB 114.28 kB +0.96% 22.97 kB 23.19 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.75% 118.53 kB 119.42 kB +0.95% 23.74 kB 23.97 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.75% 118.53 kB 119.42 kB +0.95% 23.74 kB 23.97 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.75% 118.53 kB 119.42 kB +0.95% 23.74 kB 23.96 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.75% 118.53 kB 119.42 kB +0.95% 23.74 kB 23.96 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.production.js +0.74% 120.32 kB 121.21 kB +0.92% 24.11 kB 24.34 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.production.js +0.74% 120.32 kB 121.21 kB +0.90% 24.11 kB 24.33 kB
facebook-www/ReactFlightServer-prod.classic.js +0.58% 102.72 kB 103.32 kB +0.66% 20.81 kB 20.95 kB
facebook-www/ReactFlightServer-prod.modern.js +0.58% 102.72 kB 103.32 kB +0.66% 20.81 kB 20.95 kB
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.development.js +0.55% 241.51 kB 242.84 kB +0.73% 43.19 kB 43.51 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.development.js +0.55% 241.51 kB 242.84 kB +0.73% 43.19 kB 43.51 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.node.development.js +0.55% 243.60 kB 244.93 kB +0.76% 43.62 kB 43.95 kB
oss-stable-semver/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.development.js +0.54% 248.03 kB 249.36 kB +0.79% 44.26 kB 44.60 kB
oss-stable/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.development.js +0.54% 248.03 kB 249.36 kB +0.79% 44.26 kB 44.60 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.53% 249.23 kB 250.56 kB +0.76% 44.58 kB 44.92 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.53% 249.23 kB 250.56 kB +0.76% 44.58 kB 44.92 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.53% 249.24 kB 250.57 kB +0.74% 44.59 kB 44.92 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.53% 249.24 kB 250.57 kB +0.74% 44.59 kB 44.92 kB
oss-experimental/react-server-dom-unbundled/cjs/react-server-dom-unbundled-server.node.development.js +0.53% 250.12 kB 251.45 kB +0.77% 44.69 kB 45.03 kB
oss-stable-semver/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.53% 234.83 kB 236.07 kB +0.71% 42.60 kB 42.90 kB
oss-stable/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.53% 234.83 kB 236.07 kB +0.71% 42.60 kB 42.90 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.node.development.js +0.53% 251.32 kB 252.65 kB +0.75% 45.00 kB 45.34 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.node.development.js +0.53% 251.33 kB 252.66 kB +0.75% 45.01 kB 45.35 kB
oss-experimental/react-server-dom-esm/cjs/react-server-dom-esm-server.node.development.js +0.52% 236.92 kB 238.16 kB +0.70% 43.03 kB 43.33 kB
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.development.js +0.49% 211.15 kB 212.19 kB +0.66% 38.07 kB 38.32 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.development.js +0.49% 211.15 kB 212.19 kB +0.66% 38.07 kB 38.32 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.edge.development.js +0.49% 213.24 kB 214.28 kB +0.64% 38.49 kB 38.73 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.47% 218.87 kB 219.91 kB +0.66% 39.36 kB 39.62 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.47% 218.87 kB 219.91 kB +0.66% 39.36 kB 39.62 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.47% 218.87 kB 219.91 kB +0.65% 39.37 kB 39.62 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.47% 218.87 kB 219.91 kB +0.65% 39.37 kB 39.62 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.edge.development.js +0.47% 220.96 kB 222.00 kB +0.63% 39.78 kB 40.04 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.edge.development.js +0.47% 220.96 kB 222.00 kB +0.63% 39.79 kB 40.04 kB
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.production.js +0.42% 107.84 kB 108.30 kB +0.40% 21.02 kB 21.10 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.production.js +0.42% 107.84 kB 108.30 kB +0.40% 21.02 kB 21.10 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.production.js +0.42% 109.64 kB 110.09 kB +0.39% 21.38 kB 21.46 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.40% 113.36 kB 113.81 kB +0.35% 21.94 kB 22.02 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.40% 113.36 kB 113.81 kB +0.35% 21.94 kB 22.02 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.40% 113.71 kB 114.17 kB +0.36% 22.03 kB 22.11 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.40% 113.71 kB 114.17 kB +0.36% 22.03 kB 22.11 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.production.js +0.40% 115.15 kB 115.61 kB +0.35% 22.30 kB 22.38 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.production.js +0.40% 115.50 kB 115.96 kB +0.36% 22.40 kB 22.48 kB
facebook-www/ReactFlightServer-dev.classic.js +0.36% 198.74 kB 199.45 kB +0.50% 35.96 kB 36.14 kB
facebook-www/ReactFlightServer-dev.modern.js +0.36% 198.74 kB 199.45 kB +0.50% 35.96 kB 36.14 kB
oss-stable-semver/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.development.js +0.34% 207.46 kB 208.17 kB +0.46% 37.55 kB 37.72 kB
oss-stable/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.development.js +0.34% 207.46 kB 208.17 kB +0.46% 37.55 kB 37.72 kB
oss-experimental/react-server-dom-parcel/cjs/react-server-dom-parcel-server.browser.development.js +0.34% 209.56 kB 210.27 kB +0.45% 37.97 kB 38.14 kB
oss-stable-semver/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.33% 215.07 kB 215.78 kB +0.44% 38.84 kB 39.01 kB
oss-stable/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.33% 215.07 kB 215.78 kB +0.44% 38.84 kB 39.01 kB
oss-stable-semver/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.33% 215.54 kB 216.25 kB +0.45% 38.94 kB 39.12 kB
oss-stable/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.33% 215.54 kB 216.25 kB +0.45% 38.94 kB 39.12 kB
oss-experimental/react-server-dom-turbopack/cjs/react-server-dom-turbopack-server.browser.development.js +0.33% 217.17 kB 217.88 kB +0.44% 39.27 kB 39.44 kB
oss-experimental/react-server-dom-webpack/cjs/react-server-dom-webpack-server.browser.development.js +0.33% 217.65 kB 218.36 kB +0.43% 39.38 kB 39.55 kB

Generated by 🚫 dangerJS against e0cd2b1

@eps1lon eps1lon merged commit dd45307 into facebook:main May 6, 2026
246 checks passed
github-actions Bot pushed a commit that referenced this pull request May 6, 2026
@eps1lon
[FlightReply] Type hardening and performance improvements (#36425)
3c0d8e4 
Co-authored-by: Hendrik Liebau <mail@hendrik-liebau.de>

DiffTrain build for [dd45307](dd45307)
@vercel-release-bot vercel-release-bot mentioned this pull request May 6, 2026
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