What's Changed
- fix(coding-agent): respect Google retry hints for quota retries by @roboomp in #1254
- fix(discovery): load top-level RULES.md as sticky always-apply rule by @roboomp in #1268
- fix(browser): handle null head in stealth bootstrap by @roboomp in #1269
- fix(ai): use Vertex global endpoint host by @roboomp in #1271
- fix(providers): inject ANTIGRAVITY_SYSTEM_INSTRUCTION for gemini-3.1-pro-high/low (fixes HTTP 400) by @roboomp in #1275
Full Changelog: v15.2.1...v15.2.2