docs(jetbrains): edit changelog for v7.0.12-rc.4

packages/kilo-jetbrains/CHANGELOG.md

@@ -120,18 +120,12 @@
 
 ## [7.0.12-rc.4] - 2026-08-01
 
-### Added
-- feat(opencode): remote create_session fields, org metadata, rename/title sync, cancel proof by @iscekic in https://github.com/Kilo-Org/kilocode/pull/12704
-
 ### Fixed
-- fix(jetbrains): improve diff performance and session layout by @kirillk in https://github.com/Kilo-Org/kilocode/pull/12746
-
-### Changed
-- release(jetbrains): v7.0.12-rc.3 by @kilo-maintainer[bot] in https://github.com/Kilo-Org/kilocode/pull/12742
-- docs: add icon-jetbrains skill for authoring JetBrains plugin icons by @kirillk in https://github.com/Kilo-Org/kilocode/pull/12711
-- chore(vscode): add isolated extension dev launches by @kirillk in https://github.com/Kilo-Org/kilocode/pull/12672
-- docs: add DaoXE provider guide by @seven7763 in https://github.com/Kilo-Org/kilocode/pull/12173
-
+- Improve large branch diff performance by capping huge inline diff previews, compacting diff tree paths, and allowing horizontal scrolling for long file names.
+- Reflow existing long chat sessions after they load so transcripts lay out at the correct width without needing to resize the tool window.
+- Keep the prompt send/stop button synchronized when attachments are added, removed, or cleared while a session is busy.
+- Reduce transcript restyling work during streaming so large sessions remain responsive.
+- Hide expanded diff folder badges and refresh diff tree layout correctly when folders are toggled.
 
 ## [7.0.12-rc.3] - 2026-07-31