chore(main): release 5.0.0

[github-actions]

🤖 I have created a release beep boop

5.0.0 (2026-08-28)

⚠ BREAKING CHANGES

• RetryDelayStrategy.apply(long) and RetryDelayStrategy.Result are removed. Strategies now expose getDelayMillis() and getNext(), with withBaseDelayMillis(long) as the mutation channel for server-directed retry hints. EventSource.getBaseRetryDelayMillis() and getNextRetryDelayMillis() are also removed. EventSource gains activateRetryDelayStrategy(RetryDelayStrategy) to swap the active strategy at runtime, and Builder.retryDelayStrategy becomes additive: the first call sets the default and healthy-op reset target, later calls register additional strategies for activation.

Features

• multi-strategy retry delay API for regime switching (f19f3fd)

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This PR was generated with Release Please. See documentation.

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Note

Overview
Release 5.0.0 — bumps the library version from 4.3.0 to 5.0.0 in gradle.properties and .release-please-manifest.json, and adds the 5.0.0 section to CHANGELOG.md (Release Please).

The changelog documents what ships in this major release: a breaking redesign of RetryDelayStrategy — apply(long) and Result are removed in favor of getDelayMillis(), getNext(), and withBaseDelayMillis(long) for server retry: hints; EventSource.getBaseRetryDelayMillis() and getNextRetryDelayMillis() are removed; EventSource.activateRetryDelayStrategy(RetryDelayStrategy) allows runtime strategy switching; and Builder.retryDelayStrategy is additive (first call = default/healthy reset, later calls register strategies for activation). The feature headline is multi-strategy retry delay / regime switching.

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[github-actions]

🤖 Release is at https://github.com/launchdarkly/okhttp-eventsource/releases/tag/5.0.0 🌻