v1.1.3: add actual pi 0.79.5 release notes + document GitHub releases URL in AGENTS.md

CHANGELOG.md

@@ -17,10 +17,23 @@ Pre-v1.0.0 tags followed the pi npm version (`v{pi_version}[letter]`).
 
 Patch release: pi `0.79.4` → `0.79.5` (auto-resolved at build).
 
-### Changed
+### Bumped: pi 0.79.4 → 0.79.5
 
-- **pi bumped to `0.79.5`** (published upstream 2026-06-16). No image-side
-  changes beyond the pi npm version.
+Notable upstream changes (from [pi releases](https://github.com/earendil-works/pi/releases/tag/v0.79.5)):
+
+- **Provider-scoped API key environments** — `auth.json` API key entries can
+  now include `env` overrides for provider-specific Cloudflare, Azure OpenAI,
+  Google Vertex, Amazon Bedrock, cache retention, and proxy settings without
+  changing the project shell.
+- **Global HTTP proxy setting** — configure `httpProxy` once in global settings
+  to apply `HTTP_PROXY` / `HTTPS_PROXY` to Pi-managed HTTP clients.
+- **Vercel AI Gateway attribution** — requests now include Pi attribution
+  headers by default.
+- **Fixes:** inherited OpenAI Responses streaming tolerates null message content
+  before tool calls; DeepSeek V4 thinking no longer sends both `thinking` and
+  `reasoning_effort`; device-code login no longer auto-opens the browser;
+  various Google/Vertex Gemini model metadata corrections; session selector
+  empty-state fix; Cursor Up history navigation fix.
 
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