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Bump Hermes V1 to 250829098.0.16#57646

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Jul 23, 2026
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Bump Hermes V1 to 250829098.0.16#57646
gabrieldonadel merged 1 commit into
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@gabrieldonadel/bump-hermes-86

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Summary:

Older versions of Hermes have an excessive memory consumption issue that was fixed in the Hermes version shipped with the 0.87 RCs.

This PR aligns 0.86 with the Hermes V1 version shipped in 0.87 so users on 0.86 get the memory fix without having to upgrade React Native. It mirrors what a regular Hermes version bump touches:

  • sdks/.hermesv1version: hermes-v250829098.0.10 -> hermes-v250829098.0.16 (source of truth for the iOS pod and the Android hermes-engine build)
  • sdks/hermes-engine/version.properties: HERMES_V1_VERSION_NAME bumped to match

Note: Hermes V0 (.hermesversion, hermes-v0.17.0) is left untouched

Changelog:

[GENERAL] [FIXED] - Bump Hermes V1 to 250829098.0.16 to fix excessive memory consumption

Test Plan:

  • Verified the hermes-v250829098.0.16 tag exists on facebook/hermes and hermes-compiler@250829098.0.16 exists on npm.
  • Relying on CI on this PR to build from the new tag and run the rn-tester / hermes-v1 test workflows against it. This combination (0.86 + Hermes from 0.87) has not been shipped before, so CI results here are the main signal.

@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jul 23, 2026
@gabrieldonadel
gabrieldonadel marked this pull request as ready for review July 23, 2026 12:45
Aligns 0.86 with the Hermes version shipped in 0.87 RCs, which includes
a fix for excessive memory consumption in older Hermes versions.
@gabrieldonadel
gabrieldonadel force-pushed the @gabrieldonadel/bump-hermes-86 branch from 1da1d7f to 57a0204 Compare July 23, 2026 18:21
@gabrieldonadel
gabrieldonadel merged commit 9553811 into 0.86-stable Jul 23, 2026
86 checks passed
@gabrieldonadel
gabrieldonadel deleted the @gabrieldonadel/bump-hermes-86 branch July 23, 2026 20:01
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