diff --git a/book/source/01-intro.md b/book/source/01-intro.md
index 21402c6..fd01f53 100644
--- a/book/source/01-intro.md
+++ b/book/source/01-intro.md
@@ -5,11 +5,9 @@ SPDX-License-Identifier: CC-BY-SA-4.0
 
 # Introducing OpenPGP
 
-This documentation project seeks to introduce OpenPGP concepts and functionalities to software developers who wish to use it in their projects.
+This documentation project is designed to provide a comprehensive understanding of OpenPGP, highlighting its functionalities and applications for software developers. While this document predominantly references [OpenPGP version 6, as outlined in the latest RFC](https://datatracker.ietf.org/doc/draft-ietf-openpgp-crypto-refresh/), it is important to note that the fundamental principles and functionalities of OpenPGP have remained consistent across its versions since its first release as an open standard in RFC 2440 in 1998.
 
-This document describes [OpenPGP version 6](https://datatracker.ietf.org/doc/draft-ietf-openpgp-crypto-refresh/), with occasional remarks about differences to earlier versions.
-
-This text is *not* intended as a guide for end-users of OpenPGP-related software.
+This documentation project seeks to introduce all OpenPGP concepts and functionalities to application developers who wish to use it in their projects.
 
 ## What is OpenPGP?
 
@@ -46,7 +44,8 @@ This document describes OpenPGP concepts at the "library" level of abstraction,
 
 ## Which version of OpenPGP does this address?
 
-The documentation mainly covers version 6 of OpenPGP, while occasionally noting differences to previous versions that are relevant to application developers.
+This documentation encompasses the core aspects of modern OpenPGP practices, applicable across different versions. This respects that, at a foundational level, there is significant overlap, continuity, and consistency from its earliest version to its latest. 
 
-Version 4 of OpenPGP will remain relevant for a number of years;
-some version 3 artifacts are still in use as of this writing.
+While using version 6 as a reference for current standards, we include insights derived from earlier versions, particularly version 4, which continues to be widely used in ongoing projects. 
+
+Where differences between OpenPGP versions are relevant to application development, we provide focused insights to ensure the content remains as version-agnostic as possible and, thus, broadly applicable for developers working with various iterations of OpenPGP.
\ No newline at end of file