Bump main to 10.0-preview#1128
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Cut main over to the next major preview so packages built from main are versioned 10.0.0-preview.{height} instead of 9.5-preview.{height}.
This is a manual version.json edit (the sanctioned override path), so the PR carries the 'manual-version-edit' label; the major bump 9 -> 10 carries 'breaking-change' per pr-version-check.yml.
The workflow gated major bumps on a 'breaking-change' (hyphen) label that does not exist in the repo; the actual label is 'breaking change' (space). Align the check and its messages with the real label so a labeled major bump passes.
dwcullop
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breaking change
JakenVeina
approved these changes
Jul 3, 2026
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What
Bump
mainto10.0-preview.{height}so preview builds offmainpublish as v10 preview instead of v9.5 preview.Also fixes a latent bug in
pr-version-check.yml: the major-bump gate looked for abreaking-change(hyphen) label that does not exist in this repo. The real label isbreaking change(space). The check and its messages now match the actual label, so this labeled major bump passes.Why manual
version.jsonis normally owned by the automation workflows (cut-major,promote-minor,bump-major-preview). The sanctioned way to advance the major is the Bump main to next major preview workflow. This PR is a one-time manual cutover, so it carries themanual-version-editoverride label and thebreaking changelabel per the version-check policy.Verification
nbgv get-versioncomputes10.0.0-previewfrom the editedversion.json.pr-version-check.ymlare string-only; no logic change.