[1.7.0] - 2026-07-03
Changed
-
Faster rendering:
SGR escape sequences are now formatted in place instead of allocating
strings per cell, and scrolling / line insert / line delete only redraw the
rows that actually changed instead of the whole screen. -
Lighter command history I/O:
adding a command now appends a single line to the history file instead of
rewriting all entries; the file is compacted automatically once it grows
past twice the entry limit. -
Lower idle CPU usage:
the event loop relaxes its polling interval from 10ms to 50ms after about
half a second of inactivity. Key input still wakes the loop immediately.
Fixed
-
Escape-sequence injection via window titles:
OSC 0/1/2 titles are sanitized (control characters stripped, length capped)
before being stored, so a program running in a pane can no longer inject
escape sequences into pane border rendering. -
Unbounded memory growth from unterminated OSC strings:
OSC string bodies are now capped at 4KB while waiting for a terminator. -
Hostile escape sequences could stall or crash the parser:
oversized CSI parameters (e.g.ESC[65535S) are clamped to the screen
height, and row access in insert/delete/erase character handlers no longer
panics if the cursor invariant is ever violated. -
Win32 handle leaks on PTY spawn failure:
pipe handles, the pseudo console, and the process attribute list are now
released via RAII guards whenCreatePseudoConsoleorCreateProcessW
fails. -
Tab bar rendering could panic:
tab ids missing from the tab map are skipped instead of panicking.