docs(elixir): Update docs for SDK 14.0.0

[solnic]

DESCRIBE YOUR PR

Same as #19627 but with no Runtime Metrics stuff as we will release it in 14.1 after all (waiting for conventions to settle with the metric model).

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SLA

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• Please give the docs team up to 1 week to review your PR unless you've supplied a deadline.

Thanks in advance for your help!

PRE-MERGE CHECKLIST

Make sure you've checked the following before merging your changes:

• Checked Vercel preview for correctness, including links
• PR was reviewed and approved by any necessary SMEs (subject matter experts)
• PR was reviewed and approved by a member of the Sentry docs team

LEGAL BOILERPLATE

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

EXTRA RESOURCES

• Sentry Docs contributor guide

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Project	Deployment	Actions	Updated
sentry-docs	Ready	Preview	Oct 5, 2026 1:54pm UTC

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[github-actions]

Please update the IS YOUR CHANGE URGENT? section of the PR description:

• Select exactly one option.
• If you selected an urgent or other deadline, provide the date as YYYY-MM-DD.

This information helps the Docs team prioritize your review.

[cursor]

Rollouts skipped this pull request: Documentation-only changes: all modified paths are docs site Markdown/MDX under docs/ and platform-includes/.

Mention @change-monitor in a comment to monitor it anyway.