174: Add changelog and version number

Author: achow101

bip-0174.mediawiki

@@ -9,6 +9,7 @@
   Type: Specification
   Assigned: 2017-07-12
   License: BSD-2-Clause
+  Version: 1.4.2
 </pre>
 
 ==Introduction==
@@ -580,6 +581,25 @@ able to be unserialized by an unserializer for the PSBT format.
 
 <img src="bip-0174/multisig-workflow.svg" align="middle"></img>
 
+==Changelog==
+
+* '''1.4.2''' (2026-04-08):
+** Introduce type registry auxiliary file
+** Add changelog
+* '''1.4.1''' (2021-01-14):
+** Mark Final
+* '''1.4.0''' (2019-10-02):
+** Add preimage fields
+* '''1.3.0''' (2019-10-02):
+** Add proprietary fields
+* '''1.2.0''' (2019-08-01):
+** Types are compact size unsigned ints
+** Add global PSBT version field
+* '''1.1.0''' (2019-05-13):
+** Add global xpub field
+* '''1.0.0''' (2018-07-11):
+** Mark Proposed
+
 ==Test Vectors==
 
 The following are invalid PSBTs: