Documentation : Remove release notes for versions < 1.0.0.0

They clutter up search results and provide more history than needed. This also fixes some Myst parser warnings which were coming from the older release notes and which cluttered up the CI annotations pane.

Changes.md

@@ -1,6 +1,10 @@
 1.3.x.x (relative to 1.3.1.0)
 =======
 
+Documentation
+-------------
+
+- Removed release notes for versions prior to 1.0.0.0.
 
 1.3.1.0 (relative to 1.3.0.0)
 =======

doc/source/ReleaseNotes/generate.py

@@ -15,9 +15,14 @@
 
 	m = re.match( r"^(Gaffer )?(([0-9]+\.){2,3}[0-9]+)", line )
 	if m :
-		versionIndex += ( "\n{}{}.md".format( " " * 4, m.group( 2 ) ) )
-		versionFile = open( m.group( 2 ) + ".md", "w" )
-		versionFile.write( m.group( 2 ) + "\n" )
+		versionString = m.group( 2 )
+		if versionString.startswith( "0." ) or versionString.count( "." ) != 3 :
+			# Ignore versions prior to 1.0.0.0
+			versionFile = None
+		else :
+			versionIndex += ( f"\n    {versionString}.md" )
+			versionFile = open( f"{versionString}.md", "w" )
+			versionFile.write( f"{versionString}\n" )
 		continue
 
 	if not versionFile :