Merge tag '3.1.1' into develop

3.1.1

Author: sequba

CHANGELOG.md

@@ -7,6 +7,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [3.1.1] - 2025-12-18
+
 ### Fixed
 
 - Fixed an issue where cells were not recalculated after adding, removing and renaming sheets. [#1116](https://github.com/handsontable/hyperformula/issues/1116)

README.md

@@ -25,8 +25,11 @@
 HyperFormula is a headless spreadsheet built in TypeScript, serving as both a parser and evaluator of spreadsheet formulas. It can be integrated into your browser or utilized as a service with Node.js as your back-end technology.
 
 ## What HyperFormula can be used for?
+
 HyperFormula doesn't assume any existing user interface, making it a general-purpose library that can be used in various business applications. Here are some examples:
 
+- Deterministic compute layer for AI & LLMs
+- Calculated fields in CRM and ERP software
 - Custom spreadsheet-like app
 - Business logic builder
 - Forms and form builder

docs/guide/release-notes.md

@@ -6,6 +6,15 @@ This page lists HyperFormula release notes. The format is based on
 HyperFormula adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 3.1.1
+
+**Release date: December 18, 2025**
+
+### Fixed
+
+- Fixed an issue where cells were not recalculated after adding, removing and renaming sheets. [#1116](https://github.com/handsontable/hyperformula/issues/1116)
+- Fixed an issue where overwriting a non-computed cell caused the `Value of the formula cell is not computed` error. [#1194](https://github.com/handsontable/hyperformula/issues/1194)
+
 ## 3.1.0
 
 **Release date: October 14, 2025**

docs/index.md

@@ -30,8 +30,11 @@ description: HyperFormula® - An open-source headless spreadsheet for business w
 HyperFormula is a headless spreadsheet built in TypeScript, serving as both a parser and evaluator of spreadsheet formulas. It can be integrated into your browser or utilized as a service with Node.js as your back-end technology.
 
 ## What HyperFormula can be used for?
+
 HyperFormula doesn't assume any existing user interface, making it a general-purpose library that can be used in various business applications. Here are some examples:
 
+- Deterministic compute layer for AI & LLMs
+- Calculated fields in CRM and ERP software
 - Custom spreadsheet-like app
 - Business logic builder
 - Forms and form builder

ht.config.js

@@ -6,5 +6,5 @@ module.exports = {
   HT_VERSION: packageBody.version,
   HT_PACKAGE_NAME: packageBody.name,
   HT_BUILD_DATE: moment().format('DD/MM/YYYY HH:mm:ss'),
-  HT_RELEASE_DATE: '14/10/2025',
+  HT_RELEASE_DATE: '18/12/2025',
 };

package-lock.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/handsontable/hyperformula/issues"
   },
   "author": "Handsoncode <hello@handsontable.com>",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "keywords": [
     "formula",
     "spreadsheet",