chore(release): 2.8.3

Author: LESdylan

RELEASE.md

@@ -8,6 +8,40 @@ shows you how to drive the shell.
 
 ---
 
+## v2.8.3 — *the four-bug-reports release*
+
+Four field reports, four root causes, and a detector for each so none of
+them can quietly come back:
+
+- **The big one (#94):** a double free in AST teardown could SIGSEGV the
+  shell on large rc-shaped scripts. The parse arena's rare heap-fallback
+  handed the reparser a shared token it then freed once per word — a
+  state so deep it needed hundreds of MB of parse allocations to reach,
+  which is why no normal-size test ever saw it. Fixed at the root, and
+  `make arena-stress` now shrinks the arena chunks to 512 bytes so those
+  rare states happen every few nodes, under ASan, on every CI run.
+- **`$(case ...)` parses (#95):** a case pattern's unbalanced `)` no
+  longer ends the command substitution — so the idiomatic
+  `n=$(case "$x" in ''|*[!0-9]*) echo no ;; *) echo yes ;; esac)` works,
+  and one such line no longer silently disables the rest of your rc.
+- **Preexec hooks from functions (#96):** `trap 'my_preexec' DEBUG`
+  inside a function now persists after the function returns, exactly as
+  bash does — the canonical installable-hook shape works. Subshells got
+  bash's other half too: inherited DEBUG/RETURN/ERR traps stay listable
+  in `$( )` but never fire there. And because bash-preexec's hook could
+  now actually run, hellish gained the **`builtin`** builtin it calls
+  (`builtin history 1`) — 69 builtins now.
+- **`$COLUMNS` and `$LINES` (#97):** set at interactive startup and kept
+  current across resizes (honouring `shopt checkwinsize`), unexported,
+  like bash — a right prompt no longer needs to fork `tput cols`.
+
+Verified green across every layer: 4323 golden cases on both the ASan
+and release builds, whole-script + hard corpora, the pty suite (plus a
+new resize test), allocator parity on both heaps, the 13-plugin corpus,
+and the new arena stress.
+
+---
+
 ## v2.8.2 — *the customize-your-prompt release*
 
 Paste any zsh prompt tutorial into `~/.hellishrc` and it now just works

incs/version.h

@@ -15,7 +15,7 @@
 
 /* The single source of truth for the running shell's version. Bumped in step
    with the git tag / GitHub release / npm package / docker image. */
-# define HELLISH_VERSION "2.8.2"
+# define HELLISH_VERSION "2.8.3"
 
 /* Where releases live; used by the `update` builtin and the daily check. */
 # define HELLISH_REPO "Univers42/hellish"

npm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "hellish-shell",
-  "version": "2.8.2",
+  "version": "2.8.3",
   "description": "hellish — a fast, POSIX-compliant shell, with horns",
   "bin": {
     "hellish": "bin/hellish.js"

wiki/context.md

@@ -5,7 +5,7 @@ later session. The repo history is authoritative; this file records the
 things history cannot tell you — why a thing was done, what was measured,
 what was deliberately *not* done, and what is still open.
 
-Branch to resume from: **`develop`**. Released version: **2.8.2**.
+Branch to resume from: **`develop`**. Released version: **2.8.3**.
 
 The previous note on this file covered the issue-fixing session (#27, #32,
 #34, #42 and friends). All of those are closed; the tracker is empty. This