chore: release

CHANGELOG.md

@@ -1,5 +1,20 @@
 # xls-reader
 
+## 0.5.0
+
+### Minor Changes
+
+- [#42](https://github.com/zanlucathiago/xls-reader/pull/42) [`8249bd0`](https://github.com/zanlucathiago/xls-reader/commit/8249bd003bbc9cc767ede1e23a7dba4fae5408e9) Thanks [@zanlucathiago](https://github.com/zanlucathiago)! - Return Excel error cells as a typed `CellError` instead of collapsing them to
+  `null`. A cell holding `#DIV/0!`, `#N/A`, `#REF!`, `#VALUE!`, `#NAME?`, `#NUM!`,
+  or `#NULL!` (whether a literal error or a formula's cached error result) now comes
+  back as `new CellError(code)` — distinct from a blank cell (`null`) and from a
+  text cell that happens to contain that string. Check `cell instanceof CellError`
+  and read `cell.code`; in JSON it serializes to `{ "code": "#DIV/0!" }`. Exports
+  the new `CellError` class and `ExcelErrorCode` type.
+
+  Behavior change: error cells were previously `null`. If you relied on that, treat
+  a `CellError` as empty explicitly.
+
 ## 0.4.0
 
 ### Minor Changes

package.json

@@ -1,6 +1,6 @@
 {
   "name": "xls-reader",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "Zero-dependency .xls (BIFF8 / Excel 97-2003) reader for Node and the browser — a lightweight SheetJS alternative that returns each worksheet as typed cells.",
   "keywords": [
     "xls",