docs/admin: Remove stale version-gated notes for Sourcegraph < 6.0

[marcleblanc2]

Why

The docs still carried version-conditional notes for releases that are years out of support: "as of release 3.36", "supported in Sourcegraph 5.4 or more", "these will be removed in Sourcegraph 3.34", etc. The latest docs version is 7.7, the SLA supports N‑1 major (6.x), and archived docs sites go back to v6.7. So any note that gates behaviour on a Sourcegraph version below 6.0 no longer helps anyone on a supported version, and readers on older versions have the legacy docs sites.

What changed

Removed version gates, kept the feature described unconditionally (~40 spots across ~30 files): search contexts, rev:at.time, repo metadata, Batch Changes publishing/steps.mount/changesetTemplate.fork/schema versions, login form config, permission sync, Perforce, src serve-git, AWS CodeCommit, webhooks, telemetry allowlist, Code Insights (aggregations, retention, capture groups, language stats, repository scope, quickstart), Cody troubleshooting/Azure token, blobstore/minio, Docker Compose migration, Kubernetes custom resources, zoekt watchdog, SSH rsa-sha1, GitHub App badge.

Deleted whole sections that only described a long-finished transition:

• Batch Changes FAQ: "From Campaigns to Batch Changes" (3.26 → 3.34)
• Code Insights limitations: "[Released] available in 3.35+" list and "Older versions' limitations (3.30 or older)"
• Code Insights quickstart: 3.24–3.31 prerequisites and the "enable the experimental feature flag" step (steps renumbered)
• Code Insights data retention: "Accessing this feature prior to 4.5"
• Code Insights common reasons: "[For versions pre-3.40] fork:no / archived:no" section
• Cody FAQ: "Why were embeddings removed once my instance was upgraded to v5.3?" (the following FAQ entry covers the same ground)

Deleted pages that only documented a one-time migration on a 3.x/4.x version, with redirects added in src/data/redirects.ts and existing redirects retargeted so there are no chains:

Deleted page	Redirects to
/self-hosted/how-to/blobstore-update-notes (4.2.1)	/self-hosted/how-to/blobstore-debugging
/self-hosted/how-to/precise-code-intel-worker-crashloopbackoff (3.22)	/code-navigation/troubleshooting
/self-hosted/how-to/dirty-database-pre-3-37	/self-hosted/how-to/dirty-database
/admin/how-to/lsif-scip-migration (4.5 → 4.6)	/self-hosted/how-to/clear-codeintel-data
/admin/how-to/converting-version-contexts-to-search-contexts	/code-search/working/search-contexts

Inbound links from self-hosted/index.mdx, self-hosted/how-to/index.mdx, admin/how-to/index.mdx, blobstore-debugging.mdx, dirty-database.mdx, clear-codeintel-data.mdx, code-search/features.mdx, and opengrok.mdx were updated. Two links in technical-changelog.mdx to the deleted pages were removed because dev/check-links.mjs does not follow redirects.

Upgrade docs: rewrote the Postgres 12 EOL notice in past tense (it still said the 5.10 release was "expected for November 25th, 2024"). Other upgrade-path docs (migrator, multi-version upgrades, Kustomize v4.5.0 migration, Postgres 12→16) deliberately keep their old-version references, since multi-version upgrades from v3.20+ are still supported.

Left alone on purpose

• Notes about 6.x versions (model config 6.4/6.7, auto-edit 6.0+, batch change templates 6.6, Postgres 16 in 6.0, autoupgrade removal) — still inside the N‑1 support window. Re-run the search with [3-6] when 8.0 ships.
• Code-host version numbers (GitHub Enterprise Server 3.3, Bitbucket Server 5.4/5.5) — not Sourcegraph versions.
• site-config.mdx schema comments and #deprecation-notice anchor on the webhooks page — generated/linked from the product schema.
• managing-access-tokens.mdx "tokens created before 5.3 do not expire" — still true for those tokens.
• install-vscode.mdx "Sign In to Sourcegraph Instances v5.1 and above" — quotes a UI label.
• fetch-sboms.mdx / verify-container-signatures.mdx "5.9.0 through 7.0.2852" — precise, still-relevant range.

How they were found

rg -n -i '(newer|older|later|earlier|prior|before|after|as of|since|starting|introduced|added|deprecated|removed|available|requires|support|from).{0,40}\bv?[3-5]\.[0-9]+(\.[0-9]+)?\b|\bv?[3-5]\.[0-9]+(\.[0-9]+)?\b.{0,40}(or (later|newer|more|above)|and (later|newer|above|up)|\+)' \
  docs --glob '!docs/technical-changelog.mdx' --glob '!docs/releases.mdx' --glob '!docs/**/updates/**'

Every hit was read by hand; the regex also catches code-host versions, rev:v4.5.0 query examples, and Alpine image tags, which were left unchanged.

Verification

• npx tsc --noEmit — clean
• pnpm build — ✅ No dead links found!, ✓ Compiled successfully, static pages generated

Amp threads

• Remove stale version callouts

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Project	Deployment	Actions	Updated
sourcegraph-docs	Ready	Preview	Sep 8, 2026 2:05am UTC

[marcleblanc2]

Moved to #1936 (branch renamed to marc/remove-stale-version-notes).