- v17.0.1 (#5476) rewrote the normal buffer in place per SIGWINCH, so
the terminal's own width reflow pushed wrapped fragments into native
scrollback mid-drag and resize smoothness collapsed.
- Throwaway drag frames paint on the alternate screen again; the settle
full paint fuses the buffer exit ahead of its destructive repaint.
- Kept the #5319 fixes: deferred overlay alt-exit fusing, confirmed-only
DECRPM 2026 handling, and Warp's in-place resize path.
Added an opt-in viewport-pinned live-region policy and propagated it through transcript composition for in-flight vibe_wait TV walls.
Pinned mutable wall frames now repaint virtually until finalization, while append-only live regions retain their existing frozen-snapshot behavior.
Fixes#5777
Replayed destructive full paints from home without issuing ED2 before the transcript rows, so resume and resize settles do not expose a blank viewport on terminals without synchronized output.
Kept ED3 as the single native-history clear path and updated renderer regression coverage for the new byte contract.
Fixes#5028
- Replaced inconsistent list truncation messages with a standardized `[...N items elided...]` format across all scrapers.
- Updated documentation reference to use consistent variable naming convention.
The non-multiplexer resize fast path borrows the alternate screen for
throwaway drag frames. Warp reports a terminal height one row different
for the alt buffer, so each alt enter/leave emits a fresh SIGWINCH that
re-enters the fast path — a self-sustaining loop that floods ED3 full
repaints with completely stable geometry (observed ~130
fullPaint(clearScrollback) frames over 15s, continuing after the drag
stopped). PI_FORCE_SYNC_OUTPUT cannot help (it is a loop, not tearing);
tmux works because the multiplexer path never toggles the alt buffer.
Route resize through the in-place repaint path (no alt-screen borrow, no
ED3 rewrap) for multiplexers and for terminals that re-report size on
alt-screen toggles, via resizeRepaintsInPlace(). Default-on for Warp,
overridable with PI_TUI_RESIZE_IN_PLACE=1|0. Tradeoff matches a
multiplexer: scrollback above the window keeps its old wrap.
Tests assert no alt-screen borrow / no ED3 across a Warp resize burst and
that the override toggles both ways; existing direct-terminal resize
tests now pin TERM_PROGRAM so they stay deterministic under Warp.
- Tracked snapshot-safe boundaries to retain commit-stable streamed rows in scrollback.
- Computed durableBoundary from commit and snapshot ends to prevent row drop regressions.
- Updated audit-row handling so drifting durable rows were excluded from resync checks.
- Added regression tests for commit-stable and commit-unstable relayout streaming cases.
append-only insertions above the floor no longer arm a permanent promotion freeze; floor index travels with the insertion; documented the floor semantics in the renderer internals doc.
- Introduced a stable-prefix ratchet in `deriveLiveCommitState` for 30-frame row stability.
- Computed `safeLength` from the stable prefix when `appendOnly` is false so static heads reach scrollback.
- Persisted stable-prefix/candidate state in `LiveDiffSnapshot` and `LiveCommitState` for boundary retreat on rewrites.
- Added committed-prefix resync and audited prefix tracking for terminal recovery.
- Fixed committed-row retention during resize/shrink so stale rows stay in scrollback.
- Fixed inline image demotion to preserve fallback block height using rendered graphic rows.
- Updated render regressions and stress harness expectations for resync parity and stale-prefix behavior.
- Added virtual-terminal event-log compaction and replay recovery handling for OOM resilience.
- Handled frame shrink by re-anchoring windowTop and chunkTo at commit boundaries.
- Reset committedRows when the frame shrank into committed content to keep history immutable.
- Treated geometryChanged like overlay when advancing chunkTo to stabilize repaint commit timing.
- Updated regressions to assert stable scrollback prefixes and no clear-home/dclear repaint bytes.
- Enabled DEC 2026 for Alacritty/VS Code and via TERM_FEATURES Sy token.
- Stopped blanket-disabling SSH for recognized direct terminals.
- Made the DECRQM probe enable sync on a positive report, not just disable.
- Extracted synchronizedOutputUserOverride so opt-out beats force-on.
Changed text row repaints to overwrite first and clear only stale suffixes so non-synchronized WSL/Windows Terminal paints do not visibly blank already-rendered rows. Kept full-line pre-clears for image protocol rows and preserved exact-width row handling.\n\nFixes #2011
- Added tui-core-renderer.md covering yank/corruption/flash/width faults.
- Linked the new doc from runtime internals and the tui.ts header.
- Refreshed runtime-internals to match current boot and render-intent flow.
can1357