docs(changelog): #7631 #7716 #7734

CHANGELOG.md

@@ -3,6 +3,14 @@
 
 ## [Unreleased]
 
+### Added
+
+- **The sidebar's recent-session window is configurable.** `HERMES_WEBUI_VISIBLE_SESSION_LIMIT` sets
+  how many recent sessions the sidebar lists (default 20). It also bounds how many delegated subagent
+  children can nest at once, so raise it for wide fan-outs. Invalid or non-positive values fall back to
+  20, values above 200 are clamped, and it is resolved before profile init so a profile `.env` cannot
+  override it. (#7631 by @carlotestor)
+
 ### Performance
 
 - **Opening a session while its task is still running is much faster.** Rebuilding the live
@@ -16,6 +24,15 @@
 
 ### Fixed
 
+- **A hidden browser tab stops polling a session that was deleted.** When a tab is in the
+  background, its stream poll kept asking for a session every few seconds after it was deleted or
+  archived away, forever. A `404`/`410` for the polled session now stops that poll; `503` and network
+  errors keep retrying, a late `404` for one session cannot stop another session's poll, and making
+  the tab visible again reopens the live stream. (#7299, #7716 by @happy5318)
+- **The OpenRouter setup no longer offers a model OpenRouter doesn't serve.** Onboarding offered
+  `z-ai/glm-4.5-flash`, which is not in OpenRouter's catalog, so picking it failed on the first
+  message. That slot now offers `z-ai/glm-4.5-air`, Z.AI's nearest light model. The direct Z.AI
+  setup still offers GLM-4.5 Flash. (#7520, #7734 by @MuhammadUsamaMX)
 - **Opening the sidebar can no longer stall the agent's writes to `state.db`.** Several WebUI
   paths that only read the agent's `state.db` could quietly become writers. The read-only opener
   fell back to a writable connection when `mode=ro` failed. The session listing self-healed a