diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..2b9e389
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,7 @@
+# These are supported funding model platforms
+
+github: [ts-thomas]
+open_collective: flexsearch
+liberapay: ts-thomas
+patreon: user?u=96245532
+custom: ["https://www.paypal.com/donate/?hosted_button_id=GEVR88FC9BWRW", "https://salt.bountysource.com/teams/ts-thomas"]
diff --git a/README.md b/README.md
index b029b76..28b7c37 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,36 @@
 
 <a href="#installation">Basic Start</a> &ensp;&bull;&ensp; <a href="#api">API Reference</a> &ensp;&bull;&ensp; <a href="#builds">Document Indexes</a> &ensp;&bull;&ensp; <a>Using Worker</a> &ensp;&bull;&ensp; <a href="CHANGELOG.md">Changelog</a>
 
+## Support this Project
+
+Hello my name is Thomas, also known as ts-thomas. This is a personal project which I fully made in my free time. It is hosted by the Github account from the company Nextapps where I work to give it more exposure.
+I have never received any financial support for this project from the company Nextapps as some of you might have guessed, since it is a free and open source project.
+I'm really happy that FlexSearch is getting so much positive feedback and also feature requests. Please feel free to support me by making a personal donation which helps me a lot to keep this project alive and also to providing all the contribution to keep FlexSearch on a professional top-end level.
+
+<a href="https://opencollective.com/flexsearch/donate" target="_blank" style="margin-right: 10px">
+    <img src="https://opencollective.com/webpack/donate/button@2x.png?color=blue" height="32" alt="Donate using Open Collective">
+</a>
+<a href="https://github.com/sponsors/ts-thomas/" target="_blank" style="margin-right: 10px">
+    <img src="https://camo.githubusercontent.com/b932f45963b659dfeb86b77ff29a9eaebe25a734d63a17a176aa82bf34845cf2/68747470733a2f2f696d672e736869656c64732e696f2f7374617469632f76313f6c6162656c3d53706f6e736f72266d6573736167653d254532253944254134266c6f676f3d47697448756226636f6c6f723d253233666538653836" height="32" alt="Donate using Github Sponsors">
+</a>
+<a href="https://liberapay.com/ts-thomas/donate" target="_blank" style="margin-right: 10px">
+    <img src="https://liberapay.com/assets/widgets/donate.svg" height="32" alt="Donate using Liberapay">
+</a>
+<a href="https://www.patreon.com/user?u=96245532" target="_blank" style="margin-right: 10px">
+    <img src="https://s3-us-west-1.amazonaws.com/widget-images/become-patron-widget-medium%402x.png" height="32" alt="Donate using Patreon">
+</a>
+<a href="https://salt.bountysource.com/teams/ts-thomas" target="_blank" style="margin-right: 10px">
+    <img src="https://d2bbtvgnhux6eq.cloudfront.net/assets/logos/alternate-7868987b01474c95f47678727f6657882f6565a36396eb4b637ea53cc5944ff8.svg" height="32" alt="Donate using Bountysource">
+</a>
+<a href="https://www.paypal.com/donate/?hosted_button_id=GEVR88FC9BWRW" target="_blank">
+    <img src="https://www.paypalobjects.com/webstatic/de_DE/i/de-pp-logo-200px.png" height="32" alt="Donate using PayPal">
+</a>
+<!-- [![](https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86)](https://github.com/sponsors/ts-thomas/) -->
+<br><br>
+Thanks a lot,
+Thomas (ts-thomas)
+
+<!--
 ### FlexSearch v0.7.0
 
 The new version is finally available. FlexSearch v0.7.0 is a modern re-implementation and was newly developed from the ground up. The result is an improvement in every single aspect and covers tons of enhancements and improvements which was collected over the last 3 years.
@@ -25,6 +55,7 @@ Read the documentation of new features and changes:<br>
 
 Read the documentation of new language encoding features:<br>
 <a href="https://github.com/nextapps-de/flexsearch/blob/master/doc/0.7.0-lang.md">https://github.com/nextapps-de/flexsearch/blob/master/doc/0.7.0-lang.md</a>
+-->
 
 <h1></h1>
 
@@ -3104,5 +3135,5 @@ Split indexes by categories improves performance significantly.
 
 ---
 
-Copyright 2018-2021 Nextapps GmbH<br>
+Copyright 2018-2023 Thomas Wilkerling, Hosted by Nextapps GmbH<br>
 Released under the <a href="http://www.apache.org/licenses/LICENSE-2.0.html" target="_blank">Apache 2.0 License</a><br>
diff --git a/dist/flexsearch.bundle.js b/dist/flexsearch.bundle.js
index aa8610d..0648f94 100644
--- a/dist/flexsearch.bundle.js
+++ b/dist/flexsearch.bundle.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js v0.7.31 (Bundle)
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function _f(self){'use strict';try{if(module)self=module}catch(e){}self._factory=_f;var t;function u(a){return"undefined"!==typeof a?a:!0}function aa(a){const b=Array(a);for(let c=0;c<a;c++)b[c]=v();return b}function v(){return Object.create(null)}function ba(a,b){return b.length-a.length}function x(a){return"string"===typeof a}function C(a){return"object"===typeof a}function D(a){return"function"===typeof a};function ca(a,b){var c=da;if(a&&(b&&(a=E(a,b)),this.H&&(a=E(a,this.H)),this.J&&1<a.length&&(a=E(a,this.J)),c||""===c)){a=a.split(c);if(this.filter){b=this.filter;c=a.length;const d=[];for(let e=0,f=0;e<c;e++){const g=a[e];g&&!b[g]&&(d[f++]=g)}a=d}return a}return a}const da=/[\p{Z}\p{S}\p{P}\p{C}]+/u,ea=/[\u0300-\u036f]/g;
diff --git a/dist/flexsearch.compact.js b/dist/flexsearch.compact.js
index c8d5508..1729510 100644
--- a/dist/flexsearch.compact.js
+++ b/dist/flexsearch.compact.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js v0.7.31 (Compact)
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function(self){'use strict';var t;function v(a){return"undefined"!==typeof a?a:!0}function w(a){const b=Array(a);for(let c=0;c<a;c++)b[c]=y();return b}function y(){return Object.create(null)}function aa(a,b){return b.length-a.length}function C(a){return"string"===typeof a}function D(a){return"object"===typeof a};function E(a,b){var c=ba;if(a&&(b&&(a=F(a,b)),this.G&&(a=F(a,this.G)),this.H&&1<a.length&&(a=F(a,this.H)),c||""===c)){a=a.split(c);if(this.filter){b=this.filter;c=a.length;const e=[];for(let d=0,f=0;d<c;d++){const g=a[d];g&&!b[g]&&(e[f++]=g)}a=e}return a}return a}const ba=/[\p{Z}\p{S}\p{P}\p{C}]+/u,ca=/[\u0300-\u036f]/g;
diff --git a/dist/flexsearch.debug.js b/dist/flexsearch.debug.js
index ef62e50..b8b9185 100644
--- a/dist/flexsearch.debug.js
+++ b/dist/flexsearch.debug.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js v0.7.31 (Debug)
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function(self){'use strict';
diff --git a/dist/flexsearch.es5.js b/dist/flexsearch.es5.js
index e6e479d..f3317d4 100644
--- a/dist/flexsearch.es5.js
+++ b/dist/flexsearch.es5.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js v0.7.31 (ES5)
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function(self){'use strict';var t;function aa(a){var b=0;return function(){return b<a.length?{done:!1,value:a[b++]}:{done:!0}}}var v="function"==typeof Object.defineProperties?Object.defineProperty:function(a,b,c){if(a==Array.prototype||a==Object.prototype)return a;a[b]=c.value;return a};
diff --git a/dist/flexsearch.light.js b/dist/flexsearch.light.js
index 3e1a1c9..3fce3dd 100644
--- a/dist/flexsearch.light.js
+++ b/dist/flexsearch.light.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js v0.7.31 (Light)
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function(self){'use strict';function t(a){return"undefined"!==typeof a?a:!0}function v(a){const c=Array(a);for(let b=0;b<a;b++)c[b]=y();return c}function y(){return Object.create(null)}function z(a,c){return c.length-a.length};const A=/[\p{Z}\p{S}\p{P}\p{C}]+/u;function B(a,c){const b=Object.keys(a),d=b.length,e=[];let h="",f=0;for(let g=0,l,n;g<d;g++)l=b[g],(n=a[l])?(e[f++]=new RegExp(c?"(?!\\b)"+l+"(\\b|_)":l,"g"),e[f++]=n):h+=(h?"|":"")+l;h&&(e[f++]=new RegExp(c?"(?!\\b)("+h+")(\\b|_)":"("+h+")","g"),e[f]="");return e}function C(a,c){for(let b=0,d=c.length;b<d&&(a=a.replace(c[b],c[b+1]),a);b+=2);return a};function D(a){if(a=(""+a).toLowerCase())if(this.o&&(a=C(a,this.o)),this.A&&1<a.length&&(a=C(a,this.A)),A||""===A)if(a=a.split(A),this.filter){var c=this.filter;const b=a.length,d=[];for(let e=0,h=0;e<b;e++){const f=a[e];f&&!c[f]&&(d[h++]=f)}a=d}return a};const F={},G={};function H(a,c,b,d){const e=a.length;let h=[],f,g,l=0;d&&(d=[]);for(let n=e-1;0<=n;n--){const m=a[n],r=m.length,p=y();let q=!f;for(let k=0;k<r;k++){const u=m[k],M=u.length;if(M)for(let E=0,x,w;E<M;E++)if(w=u[E],f){if(f[w]){if(!n)if(b)b--;else if(h[l++]=w,l===c)return h;if(n||d)p[w]=1;q=!0}if(d&&(x=(g[w]||0)+1,g[w]=x,x<e)){const N=d[x-2]||(d[x-2]=[]);N[N.length]=w}}else p[w]=1}if(d)f||(g=p);else if(!q)return[];f=p}if(d)for(let n=d.length-1,m,r;0<=n;n--){m=d[n];r=m.length;for(let p=0,q;p<r;p++)if(q=
diff --git a/package.json b/package.json
index 62a73f7..a2233be 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "flexsearch",
-  "version": "0.7.31",
+  "version": "0.7.32",
   "description": "Next-Generation full text search library with zero dependencies.",
   "homepage": "https://github.com/nextapps-de/flexsearch/",
   "author": "Thomas Wilkerling",
diff --git a/src/document.js b/src/document.js
index 395ad19..0aea997 100644
--- a/src/document.js
+++ b/src/document.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 
diff --git a/src/index.js b/src/index.js
index 155b3ef..09e09f3 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,8 @@
 /**!
  * FlexSearch.js
- * Copyright 2018-2022 Nextapps GmbH
- * Author: Thomas Wilkerling
+ * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
+ * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */