chore(release): bump version to 2.6.40

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to Deltos are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.6.40] - 2026-09-19
+
+### Fixed
+
+- **Session no longer dies when the browser or WebView updates (#251).** The
+  stored User-Agent fingerprint is refreshed instead of destroying the session,
+  so PWA users stop being logged out after a browser or Android System WebView
+  update.
+- **Sliding session expiration (#251).** When less than half of the 30-day TTL
+  remains, the session extends and the cookie is re-issued, so active users are
+  no longer logged out on a fixed schedule.
+
 ## [Unreleased]
 
 ## [2.6.38] - 2026-09-14

app/package.json

@@ -1,7 +1,7 @@
 {
   "name": "deltos-app",
   "private": true,
-  "version": "2.6.38",
+  "version": "2.6.40",
   "type": "module",
   "scripts": {
     "dev": "vite",

server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "deltos-server",
-  "version": "2.6.38",
+  "version": "2.6.40",
   "description": "Backend de Deltos \u2014 PWA de gesti\u00f3n de tareas para pareja (Hono + better-sqlite3)",
   "type": "module",
   "engines": {