release: v0.7.0 release notes (draft)

[aabchoo]

Description

Add v0.7.0 release notes covering all changes since v0.6.0 (27 commits).

New files:

• site/src/data/releases/v0.7.json — structured release data
• site/src/pages/release-notes/v0.7.mdx — rendered release notes page
• release-notes/v0.7.0.md — plain markdown for the GitHub release body

Updated files:

• site/src/data/releases/v0.6.json — badge Latest → Stable, added next navigation to v0.7
• site/src/data/releases/index.json — lastUpdated to 2026-06-01
• site/src/pages/release-notes/index.mdx — added v0.7 import, featured release card, updated v0.6 card date range and unfeatured it

Highlights documented:

• Hostname-based routing (AIGatewayRoute.spec.hostnames)
• Anthropic /v1/messages → AWS Bedrock Converse translator
• audio_url / video_url multimodal content types
• MCP tools/list authorization filtering
• Anthropic prefix support and anthropic-beta header forwarding
• 6 bug fixes (SSE parsing, streaming buffering, nil-pointer guard, Gemini finish reasons, Responses API compatibility)

Related Issues/PRs (if applicable)

Includes changes from: #2172, #2163, #2160, #2155, #2157, #2148, #2136, #2108, #2106, #2123, #2118, #2107, #2103

Special notes for reviewers (if applicable)

[dosubot]

Related Knowledge

2 documents with suggested updates are ready for review.

Envoy's Space

compatibility /ai-gateway/blob/main/site/docs/compatibility.md — ⏳ Awaiting Merge

supported-endpoints /ai-gateway/blob/main/site/docs/capabilities/llm-integrations/supported-endpoints.md — ⏳ Awaiting Merge

^{How did I do? Any feedback?}