> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta.md).

# Delegate 3.x (Closed Beta)

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[Overview](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/delegate-overview.md)
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[Feature Parity](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/feature-parity.md)
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[Install a Delegate](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/install-a-delegate.md)
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[Run Initialization Scripts Before Delegate Startup](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/configure-init-script.md)
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[Capacity-Based Stage Queuing](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/capacity-based-stage-queuing.md)
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[Configure Custom Certificates and mTLS](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/custom-certs-and-mtls.md)
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[Disaster Recovery Strategy](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/disaster-recovery-strategy.md)
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[Delegate 3.x FAQs](/harness-platform/use-harness-platform/delegates/delegate-3x-closed-beta/delegate-faqs.md)
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